Cha pte r Seve n
Landbirds
Pr incipa l Autho r: Da nie l Ca sey
Photo by Daniel Casey
Inside this Chapter Introduction........................................................................................................................... 7.3
Landbirds
Definition of Biological Planning Units.. ................................................................................ 7.4 Species Prioritization............................................................................................................ 7.5 •
PIF Species Assessment Database and Continental Plan................................................... 7.5
•
PIF State Plans................................................................................................................. 7.5
•
Fish and Wildlife Service Birds of Management Concern (BMC).. ........................................ 7.6
•
State Wildlife Action Plans................................................................................................ 7.6
Habitat Prioritization & Characterization............................................................................ 7.10 •
IWJV Terrestrial Habitat Overview (Landscape Characterization).. ..................................... 7.10
•
Habitat Classification Scheme: Crosswalk of Vegetative Associations.............................. 7.11
•
Decision Support Tool: The HABPOPS Database.. ............................................................ 7.12
Bird Population (Step-down) Objectives............................................................................. 7.13 •
Step-down Objectives by BCR/State Polygons ............................................................... 7.13
Habitat-based (Bottom-up) Objective Setting & Targeting Landscapes.............................. 7.25 •
Sagebrush Objectives..................................................................................................... 7.25
•
Grassland Objectives...................................................................................................... 7.36
Priority Actions . ................................................................................................................. 7.43 •
Recommended Approaches for Conservation, by BCR/State............................................ 7.43
Literature Cited................................................................................................................... 7.54 Appendix A. Landbird Science Team Members................................................................... 7.55 Appendix B. Landbird Species of Continental Importance in the Intermountain West Avifaunal Biome . ................................................................................................................ 7.56 Appendix C. Total Acreage by IWJV Habitat Type by State and BCR.. ................................. 7.57 Appendix D. Crosswalk of Vegetative Associations by IWJV Cover Types......................................................................................................................... 7.64 Appendix E. Overlaps Between Mapped Ranges of IWJV Focal Species and BCR/State Polygons............................................................................................................ 7.74 Appendix F. Population Trends of Focal Landbird Species, IWJV States, 1967–2007.......... 7.76 Appendix G. Priority Actions for Additional Habitats and Focal Species in BCRs 9, 10 and 16.. .......................................................................................................... 7.77 Appendix H. BBS Trend Maps for IWJV Focal Landbird Species......................................... 7.83
7.2
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INTRODUCTION Landbirds as defined in this document include 285 species, the greatest proportion of the breeding avifauna of the Intermountain West. Landbirds are those birds that occupy primarily upland habitats to meet their needs throughout their life cycle. They include hawks, owls, hummingbirds, woodpeckers, flycatchers, warblers, sparrows and other groups defined in the North American Landbird Conservation Plan (Rich et al. 2004). Many landbird species have shown dramatic population declines in the West, primarily in response to habitat changes resulting from altered land use and the alteration of natural ecological processes. Rich et al. (2004) placed 44 of these species on the Partners in Flight (PIF) Watch List, hightlighting their particular vulnerability in the near future. The Intermountain West Joint Venture (IWJV) is the largest Joint Venture in the Continental U.S., and is comprised primarily of three of the largest Bird Conservation Regions (BCRs 9,10 and 16) south of the Boreal Forest of Canada. The Joint Venture also includes small portions of 8 other BCRs (Fig. 1). BCRs 9,10 and 16 comprise the Intermountain Avifaunal Biome addressed in the PIF Continental Plan. The area is characterized by large expanses of land in public ownership and highly diverse habitats, from deserts to alpine tundra, that vary along both elevational and climatic gradients. Many landbird Species of Continental Importance (Rich et al. 2004) have their centers of abundance here, and of those, more than half have 75% or more of their global population in this biome (Appendix A). Landbird conservation issues in the IWJV are as diverse as its landscape and vary in scale from local land use decisions to perturbations in ecological processes at landscape scales. Not all can be addressed by the IWJV and its partners. This simple fact requires us to be strategic in our selection of the species, habitats, and areas where JV resources can be most effectively brought to bear on species and habitats in need.
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5
10
5
5
17
32 15
17
9
18
15 0
16
33
34
35 34
Figure 1 B ird Conservation Regions overlapping the Intermountain West Joint Venture.
This chapter of the IWJV Implementation Plan is meant to facilitate strategic conservation of priority birds and their habitats by JV partners throughout the IWJV landscape. It is our intent to support and strengthen, rather than supplant, those objectives and conservation strategies identified in the PIF Continental Plan, the 11 state PIF Conservation Plans, and the State Wildlife Action Plans of the 11 states. We do this by identifying focal species for conservation, and developing linked population and habitat objectives at appropriate geographic scales.
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DEFINITION OF BIOLOGICAL PLANNING UNITS
Photo by USF WS
Figure 2 B CR-state polygons used as the spatial units for landbird planning by the Intermountain West Joint Venture. These are defined by the intersection of Bird Conservation Regions, State boundaries, and the Joint Venture boundary as refined in 2010.
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Supporting data for the PIF continental plan (Rich et al. 2004) included population estimates for each segment of each landbird species distribution. The basic unit of this database was a portion of a BCR within a state (Fig. 2). There are 38 of these units covering the IWJV, which has adopted these polygons as a basic geographic unit for planning. They offer several advantages: 1) they provide direct links to the PIF planning process and priority database; 2) they allow for the development of objectives at a manageable scale, within a Joint Venture that covers nearly half a billion acres; and 3) they allow for “rolling up� population estimates, objectives, and accomplishments to either the BCR or state level. In some cases (e.g., BCR 10 in Washington) more than one polygon exists within a state that constitute part of the same BCR.
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SPECIES PRIORITIZATION Hundreds of landbird species breed, migrate through, or winter in the IWJV area. The PIF Science Committee and Regional Working Groups are currently analyzing the year-round habitat needs, limiting factors, and conservation bottlenecks for selected species, particularly in light of the recent PIF Tri-National Vision (Berlanga et al. 2010). Here we have focused on a subset of those species that breed in the IWJV, on the assumption that we must “keep the table set”, at a minimum, for those species identified as conservation priorities. We acknowledge that the actions of the joint venture will by necessity evolve over time as regional limiting factors are more clearly defined,. We considered a list of 55 species as potential focal species for terrestrial habitat conservation design in the IWJV (Table 2), and selected a set of 21 focal species for analysis and the setting of population and habitat objectives. This list of species was selected through review by the IWJV Landbird Science Team (a subset of the Western Working Group of PIF). All species considered were on one or more of the following lists:
PIF Species Assessment Database and Continental Plan The PIF Continental Plan (Rich et al. 2004:52) listed 33 Species of Continental Importance in the Intermountain West Biome. These included 23 “Watch List” species and 10 “Stewardship Species” (Appendix A). A few of these, like the McCown’s Longspur, are peripheral to the IWJV area. Also included are a few species either listed or proposed for listing as Threatened or Endangered (e.g. California Condor, Spotted Owl), and covered by Recovery Plans. Gunnison and Greater Sage-Grouse are both included in the PIF list, but were not considered directly by this round of planning by the Landbird Science Team, in part because of the significant amount of planning and management that has already been implemented by state agencies and their partners. But their conservation is one of the major considerations driving land-use planning and management in the West. We anticipate that coordination of objectives for other sagebrush obligate species with conservation actions undertaken for grouse will be an important part of implementation for the IWJV during the next decade and beyond. We do present broad objectives for these species in that context herein. Similarly, we assumed that some species needs might be met by conservation actions taken for our focal species, or were a lower planning priority at this time: Calliope Hummingbird, Williamson’s Sapsucker, Dusky Flycatcher, Mountain Bluebird, Green-tailed Towhee and Cassin’s Finch. Lastly, a few of the Species of Continental Concern in the Intermountain region are such 7.5
localized habitat specialists (White-throated Swift, Black Swift, Black Rosy-Finch, and Brown-capped Rosy-Finch) that the Landbird Science Team did not feel that realistic population-driven, habitat objectives could be developed to inform the typical partnership-driven conservation actions undertaken by the IWJV. The latter three species are among those most likely to be affected by climate change, however, and have significant monitoring needs (which are being addressed in part as priorities in the current 5-year Action Plan of the PIF Western Working Group (Neel and Sallabanks 2009).
The primary Continental PIF categories are defined as follows: • Watch List (W). These species had the highest combined scores in the PIF Species Assessment Database (Carter et al. 2000), or had shown population declines of >50% over 30 years. • Stewardship (S). These are species that have a proportionately high percentage of their world population in a single Avifaunal Biome (in addition to those already designated as Watch List). • Immediate Action (I): Immediate action is needed to reverse or stabilize significant and long-term declines of species with small populations, or to protect species with the smallest populations for which trends are poorly known; • Management (M): Management or other on-the-ground conservation actions are needed to reverse significant, long-term declines or sustain vulnerable populations; or • Long-term Planning and Responsibility (P): Long-term planning is needed to maintain sustainable populations.
PIF State Plans State PIF working groups completed their first state-bystate conservation plans for landbirds roughly during the period 1998-2001, and several of these have since been updated. All are available on the PIF website (http:// www.partnersinflight.org/bcps/pifplans.htm). These were developed from the same PIF database as the Continental Plan, and as such generally highlight the same priority species. Considerable time was spent by the PIF Western Working Group to coordinate elements of those plans, most notably a general nomenclature for landcover types that was used to crosswalk ecological systems from the state GAP products in a way that would allow regional coordination. That generalized habitat scheme was adopted during the prior Implementation Planning process of the IWJV, and is used again here.
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SPECIES PRIORITIZATION Although PIF state plans were rather inconsistently incorporated into State Wildlife Action Plans, the latter still focus primarily on those habitats (and conditions) that have consistently been identified as bird conservation targets. Our development of this chapter of the IWJV Implementation Plan, while not drawn specifically from western state PIF plans, is a direct descendant of those plans, the collective knowledge of the Western Working Group partners that authored them, and the continued collaboration that is driving landbird conservation in the IWJV area. The basic biology, rationale for concerns, habitat associations, and best management practices for focal species are described in the state plans, and are not reiterated here.
Fish and Wildlife Service Birds of Management Concern (BMC) The BMC is a subset of all species protected by the Migratory Bird Treaty Act which pose special management challenges due to a variety of factors (e.g., too few, too many, conflicts with human interests, or societal demands) (USFWS 2004). The BMC includes both game birds below their desired condition and nongame birds. As indicated in its strategic plan (USFWS 2004), the Migratory Bird Program places priority emphasis on these birds in its activities. The BMC list for USFWS Region 6 includes 96 species that occur regularly in the region.
State Wildlife Action Plans Each of the eleven State Wildlife Action Plans identified avian Species in Greatest Conservation Need (SGCN) at ecoregional scales within the states. Although the number and diversity of SGCN varied greatly among states, many of our focal species were listed by multiple states, and this was one criteria considered by the Landbird Science Team when selecting species for our Habitats and Populations Strategies (HABPOPS) model.
Table 1 S pecies considered as potential focal species for habitat conservation implementation by the IWJV. The 55 species were listed as conservation priorities by Partners In Flight, U.S. Fish and Wildlife Service, State Wildlife Action Plans, or occur on the joint Watch List of American Bird Conservancy and National Audubon Society. See text for codes. SPECIES
PIF
BMC
Baird’s Sparrow
SWAP # 2
WATCH LIST
PRIMARY HABITAT
JUSTIFICATION
High
Grassland
Limited distribution, sensitive to range condition Mast crop dependent
Band-tailed Pigeon
X
4
Forest
Bell’s Vireo
X
4
Riparian
X
4
Desert
X
1
Mixed
6
Tundra
Limited range, and sensitive to climate change
Riparian
Habitat specialist, sensitive to climate change
Grassland
Preference for wet meadows/hay
Sagebrush
Sage obligate
Tundra
Limited range, and sensitive to climate change
Grassland
Prairie dog community, nearobligate
Bendire's Thrasher
WI
Black-chinned Sparrow Black Rosy-Finch
WP
Black Swift
WM
Bobolink
Brewer’s Sparrow
WM
Brown-capped Rosy-Finch
WP
Burrowing Owl
7
X
5
X
6
WI
Calliope Hummingbird
WP
Cassin’s Finch
SM
Decl
Decl
2
X
California Condor
7.6
X
10
Significant declines
Mixed Decl 2
Mixed
Declining species
Forest
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SPECIES PRIORITIZATION Table 1 (Continued) Species considered as potential focal species for habitat conservation implementation by the IWJV. The 55 species were listed as conservation priorities by Partners In Flight, U.S. Fish and Wildlife Service, State Wildlife Action Plans, or occur on the joint Watch List of American Bird Conservancy and National Audubon Society. See text for codes.
SPECIES
PIF
BMC
1
Chestnut-collared Longspur
Clark’s Nutcracker
WATCH LIST
PRIMARY HABITAT
JUSTIFICATION
Decl
Grassland
Significant declines; dependent on native grassland
SP
Crissal Thrasher Dusky Flycatcher
SWAP #
Forest X
3
Desert
1
Mixed
2
Forest
X
8
Grassland
Widely recognized as priority by partners (e.g., SWAP)
X
5
Forest
Snag nester in dry forests where fire ecology is disrupted.
Forest
Dependent on ponderosa pine in the southwest
Grassland
Requires taller grasses
Juniper/Sage
Also in ponderosa pine in parts of its range
Juniper
Limited range, affected by tree removal in sage
SP
Dusky Grouse Ferruginous Hawk Flammulated Owl
WP
Grace’s Warbler
WM
Grasshopper Sparrow
X
Rare
6
Gray Flycatcher
SP
Gray Vireo
WP
Green-tailed Towhee
SP
1
Greater Sage-Grouse
WI
8
Decl
Sagebrush
Declining range wide; habitat losses, conflicts with energy
Gunnison Sage-Grouse
WI
2
High
Sagebrush
Candidate Species
X
5
Rare
Sagebrush
Hammond’s Flycatcher
Forest X
1
X
7
Loggerhead Shrike
X
6
Long-billed Curlew
X
7
Le Conte's Thrasher Lewis’s Woodpecker
WM
Desert High
Decl
MacGillivray's Warbler WP
Mountain Bluebird
SP
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Population declines, snag dependent
Sagebrush
Unique ecology (carnivore), depends on high shrubs
Grassland
Highly imperiled, area sensitive
Mixed
McCown's Longspur
Mountain Plover
Riparian
1
Grassland
Shortgrass; peripheral to IWJV
Mixed 4
High
Grassland
High level of habitat specificity
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SPECIES PRIORITIZATION Table 1 (Continued) Species considered as potential focal species for habitat conservation implementation by the IWJV. The 55 species were listed as conservation priorities by Partners In Flight, U.S. Fish and Wildlife Service, State Wildlife Action Plans, or occur on the joint Watch List of American Bird Conservancy and National Audubon Society. See text for codes.
SPECIES
PIF
BMC
Mountain Quail Northern Goshawk
SWAP #
WATCH LIST
PRIMARY HABITAT
JUSTIFICATION
3
Mixed
X
9
Forest
Mature forest required for nesting
Olive-sided Flycatcher
WM
X
6
Decl
Forest
Requires particular seral habitats
Pinyon Jay
WM
X
4
Rare
Juniper
Rare, declining, dependent on mature pinyon/juniper.
Plumbeous Vireo
Forest
Red-naped Sapsucker
SP
X
1
Forest
Aspen habitat declining
Rufous Hummingbird
WM
X
2
Riparian
Riparian willow communities
Sage Sparrow
SP
X
7
Sagebrush
Requires robust sage with good understory condition
Sage Thrasher
SP
Sagebrush
Requires robust sage with good understory condition
Grassland
Dense grasses needed (e.g. CRP associate); declining
Forest
Listed Species, peripheral to IWJV
Grassland
Past declines, raptor guild.
Mixed
Mountain shrub communities: development risks
Forest
Requires open, mature ponderosa pine
Short-eared Owl
Decl
4 X
6
Decl
Spotted Owl
WI
X
5
Swainson’s Hawk
WM
X
5
Virginia’s Warbler
WP
X
4
White-headed Woodpecker
WP
X
4
White-throated Swift
WM
Williamson’s Sapsucker
SP
X
3
Decl
Forest
Declining and snag dependent
Willow Flycatcher
WM
X
7
Decl
Riparian
Needs high quality riparian shrub layer; declining
X
4
Riparian
Riparian obligate sensitive to habitat condition; declines
Yellow-billed Cuckoo
Rare
Rare
3
Cliff/Canyon
In considering potential species for setting regional habitat-based population objectives, we screened these lists for those species meeting the following criteria: • Focal or keystone species indicative of specific habitat conditions needed by a suite of species; • Identified nearly universally as a conservation priority; • Representative of habitat conditions that are in a threatened or declining status; 7.8
• Representative of conservation issues identified in multiple State Wildlife Action Plans for priority habitats; The final list of focal species selected by the Landbird Science Team (Table 2) forms the basis of our process to tie habitat objectives to population objectives through a “bottom-up” process. They generally represent those habitat associations or conditions that are limited in extent, declining, or are particularly vulnerable to continued perturbations in ecological processes (e.g. fire,
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SPECIES PRIORITIZATION succession/encroachment, and invasives). In some cases (e.g. sagebrush and ponderosa pine dependent species) the IWJV also encompasses the majority of the species continental ranges. We included the Long-billed Curlew in the landbird chapter (in consultation with the Shorebird
Science Team) because it is an upland breeder highly dependent on grassland and agricultural landscapes, making it more suitable to our HABPOPS modeling process than the planning process used by the Shorebird Science Team.
Table 2 S pecies selected for inclusion in HABPOPS modeling and planning in the IWJV. PIF Watch List (W) and Stewardship (S) species and USFWS Birds of Management Concern (BMC) are noted, as well as the number of IWJV states (N=11) listing each as a “Species in Greatest Need of Conservation”. SPECIES
PIF
Band-tailed Pigeon
BMC
# SWAP
HABITAT
X
4
Pine-Oak
Bendire's Thrasher
W
X
4
Desert Scrub
Brewer's Sparrow
W
X
6
Sagebrush (near obligate)
X
8
Grassland (large blocks)
X
5
Mature Dry Forest (heterogeneous, snags)
Ferruginous Hawk Flammulated Owl
W
Grace's Warbler
W
Grasshopper Sparrow
Southern Ponderosa Pine Forest X
6
Grassland/Agricultural (tall bunchgrass)
Gray Flycatcher
S
Gray Vireo
W
X
5
Pinyon Juniper
Lewis's Woodpecker
W
X
7
Wooded Riparian/Dry Forest/Burns (snags)
X
7
Grassland; “Highly imperiled”
Long-billed Curlew
Ponderosa/Pinyon Juniper/Sage
Olive-sided Flycatcher
W
X
6
Spruce-Fir Forest/Recent Burns (seral)
Pinyon Jay
W
X
4
Pinyon/Juniper (Mature)
Red-naped Sapsucker
S
X
1
Aspen (multi-aged stands)
Rufous Hummingbird
W
X
2
Riparian Shrubland
Sage Sparrow
S
X
7
Sagebrush (mature)
Sage Thrasher
S
4
Sagebrush (robust, with diverse understory)
Swainson's Hawk
W
X
5
Grassland/Riparian
Virginia's Warbler
W
X
4
Montane Shrubland
White-headed Woodpecker
W
4
Mature Dry Forest (open, large snags)
Willow Flycatcher
W
7
Riparian Shrubland (in good condition)
7.9
X
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HABITAT PRIORITIZATION & CHARACTERIZATION In order to move forward with setting strategic, ecoregional habitat objectives tied to population response objectives, we needed to identify and prioritize habitats in light of the habitat associations of our selected focal species. In order to be most meaningful, such objectives must be drawn from reasonably accurate spatial data, be expressed in easily understood terms, be directly linked to bird populations, and have direct ties to measurable variables describing habitat condition. Furthermore, these variables should define poor, fair, and good habitat for selected focal species or suites of species. Such is the essence of the HABPOPS decision support tool built for landbird conservation planning and assessment in the IWJV. Habitats selected for this process met the following criteria: • Importance to a variety of priority bird species; • Presence of one or more “focal” species, identified in multiple plans, and for which population objectives can be tied directly to habitat objectives; • Widespread in distribution and well-mapped, or at least mapped consistently throughout their distribution; • With identifiable threats and well-known trends in condition (i.e. condition can be categorized as poor/fair/ good, as defined by specific variables); • Inclusion in specific initiatives, mandates, partnerships or other opportunities for conservation. The 2005 IWJV Implementation Plan “rolled up” the planning processes of 11 state steering committees, each of which had identified 7-13 moderate to high priority habitats. These were selected based on: • Statewide importance to priority bird species; • The relative degree of threat (anticipated loss or degradation); and • Opportunities for conservation, including the feasibility of protection, restoration, or enhancement. The IWJV identified seven habitats of primary concern (Table 3). Because of the level of engagement and continued investment in the conservation of these habitats by partners in the 11 state steering committees, now referred to as State Conservation Partnerships, these remain our highest priority habitat categories joint-venture wide, although Aquatic/Wetland types are not treated in this chapter. Agricultural habitats, which will play a large role in providing opportunities for habitat restoration or enhancement on private lands, are also not treated separately in this chapter. Their acreages are included in several species models, primarily those for grasslanddependent focal species. 7.10
Table 3 P riority habitats from the IWJV 2005 Implementation Plans. Those states where IWJV Steering Committees listed each type as high priority are noted. HABITAT
IWJV PRIORITY
IWJV STATES (N=11)
Grassland
A
AZ,CA,MT,NM,OR,WA,WY
Sagebrush Steppe
A
All except AZ
Aquatic/Wetland
A
All 11 States
Riparian
A
All except NV
Aspen
A
All except NM
Dry (Ponderosa Pine) Forest
A
CO,ID,MT,OR,WA,WY
Agricultural
A
OR (9 others listed it as priority B)
IWJV Terrestrial Habitat Overview (Landscape Characterization) The original state PIF plans completed during 1999-2003 and the 11 state Implementation Plans completed by IWJV State Steering Committees adopted a standardized nomenclature for broad scale habitat (cover) types. This facilitated ecoregional objective setting and inter- and intraregional cooperation between partners. The list of twenty generalized types we adopted are more specific than the National Land Cover Data Set used by some joint ventures for regional modeling, and with peerreviewed crosswalk, allowed us to utilize regional GAP (ReGAP) layers as our base layers for planning. With the completion of the SW ReGAP dataset (Arizona, Colorado, New Mexico, Nevada, Utah) in 2004 (Prior-Magee et al. 2007), and the NW (Idaho, Montana, Oregon, Washington, Wyoming) ReGAP in 2009 (http://gap.uidaho.edu/index. php/gap-home/Northwest-GAP), we had “wall-to wall” updated imagery to inform our efforts. Except where it was overlain by the more recent NW ReGAP imagery,we used the 2002 California Wildlife Habitat Relationships dataset (http://www.dfg.ca.gov/whdab/cwhr/whrintro. html) for the California portion of the joint venture,. A list of our generalized habitat types and their distribution throughout the IWJV is presented in Fig. 3. Total acreages of each (by state and BCR) are presented in Appendix B.
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HABITAT PRIORITIZATION & CHARACTERIZATION Habitat Classification Scheme: Crosswalk of Vegetative Associations In order to maintain the level of specificity characteristic of the spatial habitat data available, we maintained classifications at the Vegetative Association level in our GIS analysis and in the construction of the HABPOPS database. This facilitated linking specific density values for focal species to each of the habitat associations included in the individual species models. We ended up with a final list of 361 unique habitat associations from the three large habitat layers we used for our analysis
(Appendix D). Each was given a unique code in the HABPOPS database, and each was assigned (crosswalked) to one of our 20 generalized cover types. As in any habitat classification system, assigning such a broad selection of vegetative associations to discrete cover type classes involved some subjectivity. Where we felt that a given association did not contribute value as breeding habitat to one or more of our focal species, or did not easily fit one of our primary cover types, it was lumped into an Other Habitats category.
Figure 3
eneralized habitat G scheme used for conservation planning in the Intermountain West Joint Venture. Habitat categories were developed from reclassified vegetation associations mapped in regional landcover datasets (SWReGAP, NWReGAP, California WHR).
Agriculture Grassland Mountain Shrubland Other Shrubland Greasewood/Saltbush Sagebrush Steppe Other Forest Dry Ponderosa/Fir Forest Pine-Oak Woodlands Juniper/Pine Woodlands Mid-Elevation Mixed Conifer Spruce-Fir Aspen Open Water Wet Meadow/Marsh Other Wetland Riparian Woodland Riparian Herbaceous Riparian Shrubland Other/Unvegetated
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HABITAT PRIORITIZATION & CHARACTERIZATION Our datasets include 154 association codes found only in the NW ReGAP layer; 47 found in both the NW and SW ReGAP layers; 77 in the SW ReGAP layer only; 62 found only in the California layer; and 21 additional types we derived through our analysis of recently burned habitats and roads in BCR 9 and 10. The latter analysis has not yet been completed for the remainder of the IWJV.
Decision Support Tool: The HABPOPS Database The IWJV HABPOPS database is a Microsoft Access database based on the successful Heirarchical AllBird Strategy (HABS) database of the Playa Lakes JV. It combines estimates of current habitat extent and condition with the best available data describing focal species occupancy rates and density to derive population estimates at the BCR/State polygon scale. It can be used as a strategic tool for the development of habitat projects and programs, by predicting the change in breeding populations that will result from changes in the extent and condition of one or more habitats in a specified geographic area. It also allows us to develop “bottomup” habitat objectives by providing a tool to examine the overall potential to change carrying capacity on the landscape and to test various scenarios to see how (or if) we can meet trend-based goals. The basic building blocks of the HABPOPS database are: • Acreage. The acreage of each habitat (vegetative association) within each BCR-State polygon. These were calculated from analysis of NW ReGAP, SWReGAP and California WHR layers, with the latter reclassified to 30-m pixels for consistency with the other layers. • Condition Classes. The percentage of each habitat in defined condition classes (e.g. poor/fair/good as defined variably by canopy coverage, structure, or vegetative composition; young/mature/old growth). Our assumptions of the percentages of any given vegetative association in each condition class came from the summaries in PIF and previous IWJV state plans, or from the literature. Little is available in the way of regional spatial datasets that specify habitat condition at the association level. For the interior Columbia Basin, we extrapolated from “Range Integrity Ratings” in the support documents for the muti-agency planning documents for the region (Quigley et al. 1996).
7.12
• Predicted Occurrence. The amount of potential habitat for each focal species in each BCR-State polygon, based on predictive models combining deductive habitat associations with the mapped known range of the species. We used shapefiles of the mapped ranges (from Nature Serve) of each focal species to clip raster files of the habitats assigned as suitable for each species. Species-habitat relationships were provided by PIF state plans, review by the Landbird Science Team, and ReGAP vertebrate modeling. • Occupancy, Density. Occupancy rates and breeding density values for each condition class of each predicted habitat type for each focal species, locally-derived when available, or the best available information, were used for population estimation. Where voluminous density values that included 0 values were available, we used a default value of 1.0 for occupancy. For most others, where density values were limited and until better occupancy rates are available, we used a default of 0.8 (i.e. 80% occupancy for selected types). All assumptions used in assigning occupancy and density values in the database were tracked and summarized for inclusion in the companion HABPOPS report (see below). • Carrying Capacity. Carrying capacity for any given region or habitat was calculated by multiplying the area of habitat assumed to be suitable for the species times the occupancy rate, times the appropriate density value. The HABPOPS database is being continually expanded for additional focal species across the entire IWJV landscape. This chapter focuses primarily on BCRs 9, 10 and 16, and grassland- and sagebrush-dependent species for which the database is most complete. We envision that there will be regular updates to this document as the database becomes fully operational for the entire list of focal species and all BCR polygons in the JV. A separate document outlining the particulars of the construction, data assumptions, and use of the HABPOPS database will be available to IWJV in 2013. We will continually update the source data, through peer and literature review. We envision an interactive web interface for the database that will allow IWJV partners to test project, and program scenarios, assess the potential population effects of proposals, and improve and refine IWJV objectives over the next 5 years and beyond.
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BIRD POPULATION (STEP-DOWN) OBJECTIVES The PIF North American Landbird Conservation Plan (Rich et al. 2004) established trend-based objectives for all North American Landbirds. Using an approach based on the successful model of the North American Waterfowl Management Plan, objectives were based on population changes over the history of the North American Breeding Bird Survey (BBS), which in the West at the time of that plan’s preparation was 1967 through 2003. The basic premise is that we would try, over a 30-year period, to reverse delines and restore populations to 1967 levels. The Plan established 4 categories of objectives: • for those species that increased significantly, maintain populations; • for those where data are inconclusive, maintain or increase populations; • for those that have declined by 15-50% (-0.4 to -1.75% annually), increase current populations by 50%; and • for those species that have declined by 50% or more, double populations. Note that these objectives are independent of the actual population size estimates. This approach was deliberate, recognizing that the population estimates made by Rich et al, (2004) were preliminary and would be subject to revisions and, hopefully, increased accuracy. Population sizes were estimated from the BBS and certain other data that provided densities that could be extrapolated across geographic polygons, given a number of assumptions and adjustment factors (Rich et al. 2004). The PIF Science Committee made it clear that the population estimates and trend-based objectives for landbirds in the Continental Plan should serve as a starting point, and that as regional population estimates and habitat-based objectives are developed and refined, they should drive the conservation efforts of partners. Our HABPOPS tool is allowing us to derive population estimates and realistic objectives at multiple ecoregional scales that tie those populations to habitats on the ground, but the stepped-down trend-based objectives from PIF do serve as our starting point. Indeed, testing the validity of the continental, stepped-down objectives against bottomup calculations is an important aspect of the feedback loop of strategic conservation planning at the JV, BCR, and continental scales.
7.13
Step-down Objectives by BCR/State Polygons At face value, the continental PIF plan allows direct step-down of continental population objectives to regional (in this case, IWJV) objectives by applying the continental trend objective against the regional population estimates developed by PIF for each BCR-state polygon, and then summing those for all the polygons within the Intermountain West. We did this, with two modifications. The first was to correct each polygon’s population estimate by the percentage that is included in the IWJV. For example, all of BCR 9 in California is in the IWJV, so no correction was applied to the PIF estimates for that polygon; but because only 33% of the Arizona portion of BCR 34 is in the IWJV, the PIF population estimates for that polygon were adjusted accordingly. The second necessary modification was to account for those BCR-state polygons where the species is known to occur, but for which PIF developed no estimates. This would generally be the case where a species was not recorded on any BBS routes in the polygon. For these polygons, we applied the mean density (birds/km2) from all the IWJV polygons with PIF estimates, and applied them to the total area of the missing polygons. In each case, we have assumed even density across the polygon, with density in this case being a relative measure that includes gaps in distribution. For example, a low apparent density for an individual polygon could occur either from widely distributed birds present at low actual densities, or from a very limited distribution within a polygon, regardless of actual densities. Table 4 summarizes our adjusted, stepdown population estimates and preliminary trend-based objectives using these methods. Appendix D summarizes species’ occurrence within BCR-state polygons, and therefore which polygons support the greatest numbers of our focal species. Our use of this technique resulted in population estimates that exceeded the summed step-down PIF estimates by as little as 1%, to more than 500%. Not surprisingly, widespread songbird species recorded easily on BBS routes required little correction, but those species poorly surveyed by BBS (e.g. Band-tailed Pigeon, Flammulated Owl, White-headed Woodpecker) resulted in the highest correction factors using our method. These figures will serve as a holding place in lieu of our ongoing calculations and refinements of bottom-up estimates based on habitat affinity and density, as described in the following sections.
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BIRD POPULATION (STEP-DOWN) OBJECTIVES Table 4 Summed adjusted PIF population estimates, trend-based objective multipliers, and preliminary population objectives for focal landbird species in the IWJV, compiled from step-down estimates from the PIF Continental Plan. The Long-billed Curlew figures are from the N. American Shorebird Plan and the Long-billed Curlew Conservation Plan (Fellows and Jones 2009). The delta column is the (%) difference between our adjusted estimates and the original summed PIF estimates for BCR-state polygons in the IWJV; X is the trend-based multiplier. BCR/STATE POLYGONS WITH IWJV ESTIMATES
POPULATION
X
OBJECTIVE
∆
Band-tailed Pigeon
27
335,731
2.0
671,462
105%
Bendire’s Thrasher
15
115,275
2.0
230,550
48%
Brewer’s Sparrow
35
15,291,448
2.0
30,582,896
1%
Ferruginous Hawk
31
10,266
1.0
10,266
28%
Flammulated Owl
30
199,907
2.0
399,815
588%
Grace’s Warbler
15
1,292,187
1.5
1,938,281
88%
Grasshopper Sparrow
32
431,961
1.0
431,961
3%
Gray Flycatcher
32
1,152,382
1.0
1,152,382
3%
Gray Vireo
15
461,327
1.0
461,327
50%
Lewis’s Woodpecker
38
117,005
1.1
128,717
11%
Long-billed Curlew
25
160,000
1.3
208,000
-
Olive-sided Flycatcher
37
157,365
2.0
314,730
4%
Pinyon Jay
32
4,058,707
2.0
8,117,415
5%
Red-naped Sapsucker
35
738,535
1.0
738,535
8%
Rufous Hummingbird
14
588,362
2.0
1,176,725
28%
Sage Sparrow
31
3,705,928
1.0
3,705,928
2%
Sage Thrasher
36
8,442,260
1.0
8,442,260
5%
Swainson’s Hawk
38
99,985
1.1
109,884
7%
Virginia’s Warbler
22
544,939
1.1
599,433
67%
White-headed Woodpecker
15
98,266
1.0
98,266
204%
Willow Flycatcher
38
856,474
1.5
1,284,711
18%
SPECIES
7.14
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BIRD POPULATION (STEP-DOWN) OBJECTIVES These BCR trend-based objectives offer a starting point for the development of regional habitat-based conservation approaches. Continental objectives might be inappropriate at smaller scales, however, if differences in population trends are occurring at those scales or if regional habitat trends differ substantially from continental trends. For example, a species might be stable at the continental level, but performing poorly enough in one habitat or physiographic area that declines are evident. Building objectives to stem local declines may be necessary to maintain stable populations at the larger scale over the long term. One way to approach setting regional objectives is to use locally-derived trend data to develop local population (and hence habitat) objectives. We compared continental trends to trends within the three primary BCRs comprising the IWJV (BCRs 9, 10, and 16) for a variety of focal species. In addition, we compiled state trends for our focal species (Appendix E). Clearly, if a species has shown significant declines at both the BCR and state level, then a priority for that BCR-State polygon should be to maximize conservation efforts (habitat protection, enhancement, and restoration) toward an objective of stopping and reversing those declines. Furthermore, if declines are shown by several species using similar habitats we know that we will need to use our decision support tools (e.g., the HABPOPS model) to assess the
amount and type of habitat treatment that might be needed to reach trend objectives, or indeed whether it appears that they can be reached. Use of HABPOPS will also allow us to optimize strategies to meet the needs of species with compatible or conflicting habitats or conditions. The following groupings (Tables 5-11) represent suites of species or habitats where we have used the comparison of regional and continental BBS trends for focal species to set a logical starting point for BCR-state population and habitat objectives.
Sagebrush In sagebrush habitats, for example (Table 5), the Brewer’s Sparrow shows significant downward trends both continentally and in BCRs 9 and 10 (as well as in CA, CO and OR, Appendix E). Sage Thrasher also shows a significant decline in BCR 9, and in NM. These BCRstate polygons should clearly recieve higher priority for sagebrush steppe enhancement/restoration, whereas apparently stable populations in BCR10 might imply that habitat protection is the more logical strategy. And the similarity between regional trends and continental trends merits the acceptance of the PIF trend-based objectives until multiple scenarios can be run using the HABPOPS database.
Table 5 P opulation trends (annual % change) for three focal landbird species reliant on sagebrush habitat in the IWJV, 19662007, derived from BBS data, for the three primary BCRs in the joint venture. Those trends in bold are statistically significant (N = number of BBS routes). SPECIES:
BREWER’S SPARROW
SAGE SPARROW
SAGE THRASHER
Trend
P
N
Trend
P
N
Trend
P
N
N. Am.
-2.1
<0.01
517
-0.1
0.92
250
-0.6
0.25
345
BCR 9
-2.2
0.01
143
0
1.00
96
-1.3
<0.01
148
BCR 10
0
0.98
106
0.5
0.81
41
1.1
0.47
81
BCR 16
-2.4
<0.01
120
-0.1
0.96
55
-0.2
0.88
83
7.15
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BIRD POPULATION (STEP-DOWN) OBJECTIVES We have combined the BCR and state trend data into an index to develop maps of conservation opportunity to highlight specific geographies for conservation (which also help define trend-based objectives at the BCR/ State polygon level). Fig. 4 includes three such maps, for our sagebrush-dependent focal species. The scores used to develop these maps come directly from the PIF Species Assessment Database population trend scores PT-R SCORE
(PT-r), which indicate vulnerability due to the direction and magnitude of recent changes in population size within a given BCR (or state, as we applied it here). Species that have declined by 50% or more over 30 years are considered most vulnerable, whereas species with increasing trends are least vulnerable. Categorical definitions for PT-r are as follows:
% CHANGE OVER 30 YRS
EQUIVALENT % ANNUAL CHANGE
QUALITATIVE DEFINITIONS
1
≥ 50% increase
≥ 1.36%
Large population increase
2
15-49% increase, OR < 15% change
0.47 to 1.36%, OR -0.54 to 0.47%
Possible or moderate population increase OR
3
Highly variable, OR Unknown
N/A
Uncertain population trend
4
15-49% decrease
< -0.54 to -2.28%
Possible or moderate population decrease
5
≥ 50% decrease
≤ -2.28%
Large population decrease
Combined State and BCR BBS trends: Brewer’s Sparrow
Population stable
Combined State and BCR BBS trends: Sage Sparrow BBS Scores
BBS Scores
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
Combined State and BCR BBS trends: Sage Thrasher BBS Scores 1 2 3 4 5 6 7 8 9 10
7.16
Figure 4 P rioritization of BCR-State polygons within the IWJV based on regional BBS trend scores for BCRs 9, 10, and 16, combined with BBS trend scores for states, within the ranges of 3 sagebrush-dependent focal species in the IWJV. See text for trend scores. Higher scores (red) represent more significant declines; moderate scores (yellow) represent stable or unknown trends; and low scores (green) represent more significant increases.
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BIRD POPULATION (STEP-DOWN) OBJECTIVES Grassland BCR trends seem consistent with continental trends for grassland focal species, at least in our three primary BCRs (Table 6). In The Grasshopper Sparrow was not identified as a Watch List species, in spite of its significant rangewide declines, in part because it has such a broad range and has relatively low threats elsewhere in its breeding range. Regional data (Table 6, Fig. 5) suggest that it should have an objective of “Increase 100%” based on past and ongoing declines. Table 6 P opulation trends (annual % change) for 4 focal landbird species reliant on grassland habitats in the IWJV, 1966-2007, derived from BBS data, for the three primary BCRs in the joint venture. Those trends in bold are statistically significant (N = number of BBS routes). SPECIES
FERRUGINOUS HAWK
SWAINSON’S HAWK
LONG-BILLED CURLEW
GRASSHOPPER SPARROW
Trend
P
N
Trend
P
N
Trend
P
N
Trend
P
N
N. Am.
+2.6
0.01
265
-0.3
0.61
752
-0.8
0.16
280
-3.6
<0.01
1659
BCR 9
+0.8
0.72
52
2.0
0.16
92
1.5
0.28
91
-2.3
0.21
50
BCR 10
+0.1
0.99
31
-0.6
0.81
48
0.9
0.62
39
-10.6
<0.01
30
BCR 16
5.2
0.51
11
2.7
0.45
36
-1.5
0.86
6
-20.5
0.17
4
Pinyon Juniper Population trends for Pinyon-Juniper birds are consistent at BCR and continental scales (Table 7, Fig. 6). Pinyon Jays are showing rather drastic declines continentally, and in BCR 16, as well as in California, Colorado, Montana, and Nevada (Appendix E). Gray Flycatchers appear to be increasing substantially. In areas where we need to control junipers to emphasize sagebrush, we may be able to do so without compromising regional Gray Flycatcher populations. Our HABPOPS database will allow us to test this potential. Table 7 P opulation trends (annual % change) for 3 focal landbird species reliant on pinyon-juniper woodlands in the IWJV, 1966-2007, derived from BBS data, for the 3 primary BCRs in the joint venture. Those trends in bold are statistically significant (N = number of BBS routes). SPECIES
GRAY FLYCATCHER
GRAY VIREO
PINYON JAY
Trend
P
N
Trend
P
N
Trend
P
N
N. Am.
4.6
0.01
145
1.5
0.43
46
-4.4
<0.01
199
BCR 9
4.6
0.09
71
-
-
-
-4.5
0.14
42
BCR 10
8.5
0.06
10
-
-
-
-0.5
0.84
17
BCR 16
1.8
0.24
50
-0.8
0.72
31
-4.7
<0.01
101
7.17
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BIRD POPULATION (STEP-DOWN) OBJECTIVES Coniferous Forests Olive-sided Flycatchers seem to be declining nearly everywhere they occur, except in the southern (BCR16) portion of their range (Table 8, Figure 7). As with all migrants, these declines may not be the result of problems on the breeding grounds, but rather may be due to issues with winter or migration stopover habitats. And while White-headed Woodpeckers appear to be doing well continentally and perhaps even regionally based on BBS data, our concerns regarding the historic and ongoing loss of mature ponderosa pine with high densities of large snags merits conservation (enhancement) where the potential exists. Although the sample size is relatively small, the apparent steep decline of Lewisâ&#x20AC;&#x2122;s Woodpecker in BCR 10 deserves more scrutiny. Flammulated Owls are not surveyed by the BBS. Table 8 P opulation trends (annual % change) for 3 focal landbird species reliant on coniferous forests in the IWJV, 1966-2007, derived from BBS data, for the 3 primary BCRs in the joint venture. Those trends in bold are statistically significant (N = number of BBS routes). SPECIES
LEWISâ&#x20AC;&#x2122;S WOODPECKER
WHITE-HEADED
OLIVE-SIDED
BAND-TAILED PIGEON
WOODPECKER
FLYCATCHER
Trend
P
N
Trend
P
N
Trend
P
N
Trend
P
N
N. Am.
-1.2
0.6
91
2.1
<0.01
78
-1.4
0.05
232
-3.3
<0.01
826
BCR 9
-2.6
0.38
28
0.7
0.76
19
-4.9
0.39
11
-2.2
0.02
68
BCR 10
-9
0.02
15
15.9
0.02
7
-
-
-
-3.7
<0.01
128
BCR 16
-2.1
0.53
26
-
-
-
-4.8
0.17
20
-0.2
0.87
78
Photo by Rio de la Vista
7.18
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BIRD POPULATION (STEP-DOWN) OBJECTIVES Swainsonâ&#x20AC;&#x2122;s Hawk
Ferruginous Hawk
BBS Scores 1 2 3 4 5 6 7 8 9 10
BBS Scores 1 2 3 4 5 6 7 8 9 10
Long-billed Curlew
Grasshopper Sparrow BBS Scores 1 2 3 4 5 6 7 8 9 10
BBS Scores 1 2 3 4 5 6 7 8 9 10
Figure 5 P rioritization of BCR-State polygons within the IWJV based on regional BBS trend scores for BCRs 9, 10 and 16, combined with BBS trend scores for states, within the ranges of 4 grassland-dependent focal species in the IWJV. See text for trend scores. Higher scores (red) represent more significant declines, moderate scores (yellow) represent stable or unknown trends, and low scores (green) represent more significant increases. 7.19
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BIRD POPULATION (STEP-DOWN) OBJECTIVES Pinyon Jay BBS Scores 1 2 3 4 5 6 7 8 9 10
Gray Vireo
Gray Flycatcher
BBS Scores BBS Scores 1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
Figure 6 P rioritization of BCR-State polygons within the IWJV based on regional BBS trend scores for BCRs 9, 10 and 16, combined with BBS trend scores for states, within the ranges of 4 grassland-dependent focal species in the IWJV. See text for trend scores. Higher scores (red) represent more significant declines, moderate scores (yellow) represent stable or unknown trends, and low scores (green) represent more significant increases. 7.20
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BIRD POPULATION (STEP-DOWN) OBJECTIVES Olive-sided Flycatcher
Band-tailed Pigeon
BBS Scores 1 2 3 4 5 6 7 8 9 10
BBS Scores 1 2 3 4 5 6 7 8 9 10
Lewisâ&#x20AC;&#x2122;s Woodpecker
White-headed Woodpecker BBS Scores
BBS Scores
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
Figure 7 P rioritization of BCR-State polygons within the IWJV based on regional BBS trend scores for BCRs 9, 10 and 16, combined with BBS trend scores for states, within the ranges of 4 grassland-dependent focal species in the IWJV. See text for trend scores. Higher scores (red) represent more significant declines, moderate scores (yellow) represent stable or unknown trends, and low scores (green) represent more significant increases. 7.21
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BIRD POPULATION (STEP-DOWN) OBJECTIVES Rufous Hummingbird
Red-naped Sapsucker BBS Scores BBS Scores
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
Willow Flycatcher BBS Scores 1 2 3 4 5 6 7 8 9 10
Figure 8 P rioritization of BCR-State polygons within the IWJV based on regional BBS trend scores for BCRs 9, 10 and 16, combined with BBS trend scores for states, within the ranges of 4 grassland-dependent focal species in the IWJV. See text for trend scores. Higher scores (red) represent more significant declines, moderate scores (yellow) represent stable or unknown trends, and low scores (green) represent more significant increases. 7.22
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BIRD POPULATION (STEP-DOWN) OBJECTIVES Riparian Both the Rufous Hummingbird and Willow Flycatcher show significant downward trends in BC9, and both are declining continentally, the hummingbird significantly so (Table 9). Interestingly, trend patterns for Rufous Hummingbird trends differ dramatically within the IWJV states, with significant declines in Oregon and Washington, and significant increases in Montana and Idaho (Fig. 8). Table 9 P opulation trends (annual % change) for 3 focal landbird species reliant on riparian and aspen woodland habitat in the IWJV, 1966-2007, derived from BBS data, for the 3 primary BCRs in the joint venture. Those trends in bold are statistically significant (N = number of BBS routes). SPECIES
RED-NAPED SAPSUCKER
RUFOUS HUMMINGBIRD
WILLOW FLYCATCHER
Trend
P
N
Trend
P
N
Trend
P
N
N. Am.
0.9
0.38
280
-2.4
<0.01
233
-0.9
0.06
1271
BCR 9
0.4
0.76
53
-1.7
0.02
50
-2
<0.01
85
BCR 10
2.7
0.09
124
0.7
0.62
74
-1
0.68
134
BCR 16
4.3
<0.01
85
-
-
-
-0.6
0.81
35
BCR16. We are currently expanding our HABPOPS source material to build the model for additional speices in BCR 16 and more southwestern BCRs (33-35). Bendire’s Thrasher will be a focal species for the protection , enhancement, and restoration of Desert Shrub communities, Virginia’s Warbler for mountain shrub, and Grace’s Warbler for southern coniferous forests (in addition to other more widespread focal species). All three show decreases in BCR 16 (Table 10, Fig. 9). Table 10 P opulation trends (annual % change) for three focal landbird species with southerly distribution in the IWJV, 1966-2007, derived from BBS data, for the three primary BCRs in the joint venture. Those trends in bold are statistically significant (N = BBS routes). SPECIES
BENDIRE’S THRASHER
VIRGINIA’S WARBLER
GRACE’S WARBLER
Trend
P
N
Trend
P
N
Trend
P
N
N. Am.
-5.7
0.01
46
-1.4
0.1
102
-1.9
0.05
43
BCR 9
-
-
-
-
-
-
-
-
-
BCR 10
-
-
-
-
-
-
-
-
-
BCR 16
-4.8
0.21
19
-3.2
0.45
23
-1.4
0.34
23
7.23
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BIRD POPULATION (STEP-DOWN) OBJECTIVES Bendire’s Thrasher BBS Scores 1 2 3 4 5 6 7 8 9 10
Virginia’s Warbler
Grace’s Warbler BBS Scores 1 2 3 4 5 6 7 8 9 10
BBS Scores 1 2 3 4 5 6 7 8 9 10
Figure 9 P rioritization of BCR-State polygons within the IWJV based on regional BBS trend scores for BCRs 9, 10 and 16, combined with BBS trend scores for states, within the ranges of 3 focal species with a southerly distribution in the IWJV. See text for trend scores. Higher scores (red) represent more significant declines, moderate scores (yellow) represent stable or unknown trends, and low scores (green) represent more significant increase 7.24
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HABITAT-BASED (BOTTOM-UP) OBJECTIVE SETTING & TARGETING LANDSCAPES To date we have used the HABPOPS database to revise population estimates by BCR-state polygons in BCRs 9, 10 and 16 for those species where adeqate density data allowed for such calculations. We have also tested certain scenarios to assess the feasibility of meeting the trendbased objectives put forth by PIF and adopted as our preliminary IWJV objectives, focusing on three sagebrush obligates (Brewer’s and Sage Sparrows, Sage Thrasher) and two grassland obligates (Grasshopper Sparrow, Long-billed Curlew). Ongoing implementation planning will expand the effort to include revised population estimates for all 21 species where they occur in BCRs 9, 10, 16 and the other partial BCRs in the Joint Venture. All population estimates and preliminary objectives presented herein should be considered provisional, as they will undergo continual review and revision by the IWJV Landbird Science Committee, the PIF Western Working Group, and our partners. They do however establish the order of magnitude of effort required to meet trendbased objectives for our focal species. We present data for the two highest priority widespread habitats in the IWJV landscape, sagebrush and grasslands, and it is for these species for which we conclude this chapter with a “Priority Actions” section. Additional habitats,species, and needed conservation actions in BCRs 9, 10 and 16 are included in Appendix F.
Sagebrush Objectives A direct comparison of our habitat-based, bottom-up population estimates with the stepped-down population estimates from the PIF Continental Plan revealed some noteworthy differences, particularly for Brewer’s Sparrow and Sage Sparrow (Table 11). For example, population estimates exceeded the PIF estimates by factors of 3x to 8x for both Brewer’s and Sage Sparrow but were comparable between the two methods for Sage Thrasher. We view the local and regional habitat-based population estimates as improvements on the PIF stepped-down regional population estimates and as the best benchmark to use in establishing regional population objectives. Our population estimates reflect the current capacity of
7.25
the landscape to support populations of the three priority species, and allow for a local, habitat-based determination of the effort required to meet PIF continental population objectives. The process not only provides conservation partners with a population baseline based on habitat capacity, but also provides an approach to pragmatically assess existing opportunities to maintain or improve habitat conditions for the three sagebrush-obligate priority species. We also provide estimates that can be refined over time as additional information on habitat associations, occupancy rates, and breeding densities becomes available. Use of the HABPOPS model to test scenarios for these three sagebrush obligates showed that for each, population increases of 20-100% would be possible in OR and WA through concerted management to increase sagebrush cover, and to maintain or improve diversity and quantity of native grasses and forbs in the understory. Table 12 shows the relationship between converting 100 ha (247 ac) of three selected sagebrush associations, from poor to fair to good condition, in terms of the increase in population carrying capacity. Note that responses are not linear, and indeed in some cases field studies revealed counterintuitive results (with highest densities at “poor” or “fair” habitat conditions). This is in part because when working at such large geographic scales, we defined these condition classes broadly by necessity, relative to such characteristics as shrub canopy cover, diversity of understory vegetation, or forest age and structural classes, rather than defining them individually by species, e.g. for sagebrush associations: Poor Condition: (<10% sage, very low diversity/few native plants, high invasives) Fair Condition: (10-20% sage, moderate native plant cover, some invasives) Good Condition: (>20% sage, diverse native understory, little or no invasives)
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HABITAT-BASED (BOTTOM-UP) OBJECTIVE SETTING & TARGETING LANDSCAPES Table 11 C omparison of stepped-down Partners in Flight population estimates, IWJV corrected step-down estimates, and NWReGAP habitat-based bottom-up population estimates for three sagebrush-obligate priority landbird species in BCRs 9, 10 and 16 within the IWJV. SPECIES
BCR
STATE
PIF ESTIMATE
IWJV CORRECTED
HABITAT-BASED ESTIMATE
Brewer’s Sparrow
9
CA
500,000
500,000
963,300
Brewer’s Sparrow
9
ID
1,000,000
1,000,000
8,381,500
Brewer’s Sparrow
9
NV
7,000,000
7,000,000
20,248,800
Brewer’s Sparrow
9
OR
1,500,000
1,500,000
7,678,800
Brewer’s Sparrow
9
UT
600,000
600,000
3,810,000
Brewer’s Sparrow
9
WA
140,000
140,000
2,465,700
BCR 9 in IWJV
10,741,100
10,741,100
43,549,000
Brewer’s Sparrow Brewer’s Sparrow
10
CO
200,000
200,000
626,200
Brewer’s Sparrow
10
ID
200,000
200,000
2,430,000
Brewer’s Sparrow
10
MT
500,000
500,000
2,898,800
Brewer’s Sparrow
10
OR
150,000
150,000
2,866,300
Brewer’s Sparrow
10
UT
40,000
40,000
342,000
Brewer’s Sparrow
10
WA
0
118,458
75,500
Brewer’s Sparrow
10
WY
1,600,000
1,600,000
12,583,600
2,690,000
2,808,458
21,822,400
Brewer’s Sparrow
BCR 10 in IWJV
Brewer’s Sparrow
16
AZ
130,000
125,093
1,365,600
Brewer’s Sparrow
16
CO
600,000
600,000
1,979,000
Brewer’s Sparrow
16
ID
5,000
5,000
25,100
Brewer’s Sparrow
16
NM
200,000
200,000
844,100
Brewer’s Sparrow
16
NV
400
400
0
Brewer’s Sparrow
16
UT
800,000
800,000
3,513,100
Brewer’s Sparrow
16
WY
11,000
9,152
186,300
1,746,400
1,739,645
7,913,200
Brewer’s Sparrow
BCR 16 in IWJV
Sage Sparrow
9
CA
60,000
60,000
330,300
Sage Sparrow
9
ID
60,000
60,000
1,358,900
Sage Sparrow
9
NV
1,800,000
1,800,000
8,238,700
Sage Sparrow
9
OR
300,000
300,000
1,549,200
Sage Sparrow
9
UT
190,000
190,000
1,502,500
Sage Sparrow
9
WA
14,000
14,000
4,600
Sage Sparrow
9
WY
70
70
0
BCR 9 in IWJV
2,424,070
2,424,070
12,841,900
Sage Sparrow
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HABITAT-BASED (BOTTOM-UP) OBJECTIVE SETTING & TARGETING LANDSCAPES Table 11 Continued. Comparison of stepped-down Partners in Flight population estimates, IWJV corrected step-down estimates, and NWReGAP habitat-based bottom-up population estimates for three sagebrush-obligate priority landbird species in BCRs 9, 10 and 16 within the IWJV. SPECIES
BCR
STATE
PIF ESTIMATE
IWJV CORRECTED
HABITAT-BASED ESTIMATE
Sage Sparrow
10
CO
50,000
50,000
440,300
Sage Sparrow
10
ID
400
400
68,200
Sage Sparrow
10
MT
0
0
0
Sage Sparrow
10
OR
4,000
4,000
312,600
Sage Sparrow
10
UT
0
4,165
96,700
Sage Sparrow
10
WA
0
0
0
Sage Sparrow
10
WY
500,000
500,000
3,906,300
BCR 10 in IWJV
554,400
558,165
4,824,100
Sage Sparrow Sage Sparrow
16
AZ
120,000
115,470
343,000
Sage Sparrow
16
CO
20,000
20,000
583,900
Sage Sparrow
16
ID
1,900
1,900
2,400
Sage Sparrow
16
NM
170,000
170,000
215,000
Sage Sparrow
16
NV
300
300
0
Sage Sparrow
16
UT
300,000
300,000
2,026,100
Sage Sparrow
16
WY
400
333
10,600
BCR 16 in IWJV
612,600
608,046
3,181,000
Sage Sparrow Sage Thrasher
9
CA
200,000
200,000
217,000
Sage Thrasher
9
ID
500,000
500,000
936,800
Sage Thrasher
9
NV
4,000,000
4,000,000
2,470,100
Sage Thrasher
9
OR
1,000,000
1,000,000
783,200
Sage Thrasher
9
UT
300,000
300,000
472,900
Sage Thrasher
9
WA
60,000
60,000
268,900
Sage Thrasher
9
WY
500
500
30
BCR 9 in IWJV
6,060,500
6,060,500
5,148,930
Sage Thrasher Sage Thrasher
10
CO
200,000
200,000
144,100
Sage Thrasher
10
ID
40,000
40,000
94,900
Sage Thrasher
10
MT
70,000
56,147
135,800
Sage Thrasher
10
OR
50,000
50,000
205,700
Sage Thrasher
10
UT
8,000
8,000
33,500
Sage Thrasher
10
WA
0
72,371
6,600
Sage Thrasher
10
WY
1,100,000
1,085,214
494,900
BCR 10 in IWJV
1,468,000
1,511,732
1,115,500
Sage Thrasher
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HABITAT-BASED (BOTTOM-UP) OBJECTIVE SETTING & TARGETING LANDSCAPES Table 11 Continued. Comparison of stepped-down Partners in Flight population estimates, IWJV corrected step-down estimates, and NWReGAP habitat-based bottom-up population estimates for three sagebrush-obligate priority landbird species in BCRs 9, 10 and 16 within the IWJV. SPECIES
BCR
STATE
PIF ESTIMATE
IWJV CORRECTED
HABITAT-BASED ESTIMATE
Sage Thrasher
16
AZ
40,000
38,490
123,800
Sage Thrasher
16
CO
300,000
300,000
10,000
Sage Thrasher
16
ID
1,100
1,100
2,400
Sage Thrasher
16
NM
40,000
40,000
69,900
Sage Thrasher
16
NV
100
100
60
Sage Thrasher
16
UT
160,000
160,000
232,100
Sage Thrasher
16
WY
1,300
1,082
22,400
542,500
540,772
460,660
Sage Thrasher
BCR 16 in IWJV
Photo by USF WS
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HABITAT-BASED (BOTTOM-UP) OBJECTIVE SETTING & TARGETING LANDSCAPES Table 12 gives us an idea of the order of magnitude of habitat improvement to increase populations of target species. In the case of the Brewer’s Sparrow, it would take treating a minimum of 15 million acres to achieve a doubling of the population in Oregon and Washington alone over the next 30 years, given our assumptions regarding habitat condition. It is at this point we must decide whether doubling the populations of species that
have undergone serious declines is feasible, and if not, at what level we should set our objectives. Multiple iterations of scenario testing with HABPOPS, with review by key partners with knowledge of the realistic possibilities to manage large acreages, will be necessary to refine habitat objectives (and hence bottom-up, habitat-based, rather than trend-based population objectives).
Table 12 Examples of estimated population response of three sagebrush-obligate species to habitat enhancement in selected sagebrush habitats in eastern Oregon and Washington. All values are the number of additional individual birds expected by moving 100 ha (247 ac) of habitat from one condition class to another (e.g. poor condition to fair condition). SPECIES
ACRES
POOR TO FAIR
FAIR TO GOOD
POOR TO GOOD
Columbia Plateau Scabland Shrubland
Brewer’s Sparrow
247
-16
0
-16
Columbia Plateau Low Sagebrush Steppe
Brewer’s Sparrow
247
-12
54
42
Interm. Basins Montane Sagebrush Steppe
Brewer’s Sparrow
247
42
144
186
Columbia Plateau Scabland Shrubland
Sage Sparrow
247
4
-4
0
Columbia Plateau Low Sagebrush Steppe
Sage Sparrow
247
0
2
2
Interm. Basins Montane Sagebrush Steppe
Sage Sparrow
247
6
4
10
Columbia Plateau Scabland Shrubland
Sage Thrasher
247
34
10
44
Columbia Plateau Low Sagebrush Steppe
Sage Thrasher
247
0
2
2
Interm. Basins Montane Sagebrush Steppe
Sage Thrasher
247
2
-6
-4
Species Models - Maps Brewer’s Sparrow is the most widespread of these three sagebrush obligates, and the only one with a continental trend-based objective to double populations. As such, it is likely to be the primary driver of conservation planning and assessment in sagebrush systems, outside of those areas where Sage-Grouse conservation is a primary focus. We mapped carrying capacity for Brewer’s Sparrow by developing an index to show potential densities (Figs. 10, 11). This index was based on multiplying the
7.29
occupancy rate and density figure from our HABPOPS database for the best possible habitat condition in each vegetative association in our Brewer’s Sparrow model. This opportunity map shows us where the highest densities might be achieved (through a combination of protection, enhancement and restoration). We developed a similar process for the Sage Sparrow (Figs. 12, 13) and Sage Thrasher (Figs. 14, 15).
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HABITAT-BASED (BOTTOM-UP) OBJECTIVE SETTING & TARGETING LANDSCAPES
Figure 10 Brewerâ&#x20AC;&#x2122;s Sparrow habitat model, BCRs 9 and 10 in the IWJV. Colors correspond to the potential carrying capacity of the mapped vegetative associations in our HABPOPS model, under the best habitat conditions (highest densities) for the species.
7.30
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HABITAT-BASED (BOTTOM-UP) OBJECTIVE SETTING & TARGETING LANDSCAPES
Figure 11 Brewerâ&#x20AC;&#x2122;s Sparrow habitat model, BCR 16 in the IWJV. Colors correspond to the potential carrying capacity of the mapped vegetative associations in our HABPOPS model, under the best habitat conditions (highest densities) for the species.
7.31
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HABITAT-BASED (BOTTOM-UP) OBJECTIVE SETTING & TARGETING LANDSCAPES
Figure 12 S age Sparrow habitat model, BCRs 9 and 10 in the IWJV. Colors correspond to the potential carrying capacity of the mapped vegetative associations in our HABPOPS model, under the best habitat conditions (highest densities) for the species.
7.32
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HABITAT-BASED (BOTTOM-UP) OBJECTIVE SETTING & TARGETING LANDSCAPES
Figure 13 S age Sparrow habitat model, BCR 16 in the IWJV. Colors correspond to the potential carrying capacity of the mapped vegetative associations in our HABPOPS model, under the best habitat conditions (highest densities) for the species.
7.33
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HABITAT-BASED (BOTTOM-UP) OBJECTIVE SETTING & TARGETING LANDSCAPES
Figure 14 S age Thrasher habitat model, BCRs 9 and 10 in the IWJV. Colors correspond to the potential carrying capacity of the mapped vegetative associations in our HABPOPS model, under the best habitat conditions (highest densities) for the species.
7.34
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HABITAT-BASED (BOTTOM-UP) OBJECTIVE SETTING & TARGETING LANDSCAPES
Figure 15 S age Thrasher habitat model, BCR 16 in the IWJV. Colors correspond to the potential carrying capacity of the mapped vegetative associations in our HABPOPS model, under the best habitat conditions (highest densities) for the species.
7.35
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HABITAT-BASED (BOTTOM-UP) OBJECTIVE SETTING & TARGETING LANDSCAPES Grassland Objectives Grasshopper Sparrows breed in the IWJV portions of eight western states. Our bottom-up estimates of population size differed only slightly from those generated by PIF from the BBS data for BCR 9, but were less than half the PIF estimates for BCRs 10 and 16 (Table 13). Grasshopper Sparrow was not considered a Species of Continental
Importance in the Intermountain West Avifaunal Biome in the PIF Continental Plan, and thus no population objective was provided. However, using the process described in the Continental Plan for setting continental population objectives, Grasshopper Sparrow would have an objective to double the population (i.e., increase by 100%) based on its long-term significantly declining trend of -3.8% per year (P <0.01) in the IWJV.
Table 13 C omparison of stepped-down PIF population estimates, IWJV corrected step-down estimates, and NWGAP habitat-based “bottom-up” population estimates for the Grasshopper Sparrow in BCR 9, 10 and 16 within the IWJV. SPECIES
BCR
STATE
PIF ESTIMATE
IWJV CORRECTED
HABITAT-BASED ESTIMATE
Grasshopper Sparrow
9
ID
30,000
30,000
44,600
Grasshopper Sparrow
9
NV
4,000
4,000
300
Grasshopper Sparrow
9
OR
9,000
9,000
16,400
Grasshopper Sparrow
9
UT
40,000
40,000
6,000
Grasshopper Sparrow
9
WA
140,000
140,000
184,000
Grasshopper Sparrow
9
WY
40
40
0
223,040
223,040
251,300
Grasshopper Sparrow
BCR 9 in IWJV
Grasshopper Sparrow
10
ID
30,000
30,000
900
Grasshopper Sparrow
10
MT
60,000
48,126
21,100
Grasshopper Sparrow
10
OR
900
900
200
Grasshopper Sparrow
10
UT
0
1,205
700
Grasshopper Sparrow
10
WA
1,400
1,400
4,400
Grasshopper Sparrow
10
WY
15,000
14,798
13,700
107,300
96,429
41,000
Grasshopper Sparrow
BCR 10 in IWJV
Grasshopper Sparrow
16
CO
900
900
0
Grasshopper Sparrow
16
ID
200
200
40
Grasshopper Sparrow
16
NM
4,000
4,000
0
Grasshopper Sparrow
16
UT
30,000
30,000
900
Grasshopper Sparrow
16
WY
300
250
4,300
35,400
35,350
5,240
Grasshopper Sparrow
7.36
BCR 16 in IWJV
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HABITAT-BASED (BOTTOM-UP) OBJECTIVE SETTING & TARGETING LANDSCAPES The Long-billed Curlew was not addressed in the PIF Continental Plan because it is a shorebird species. However, it is reasonably monitored by BBS in terms of sample size, and if a population objective was to be applied based on the PIF process, Long-billed Curlew would have a trend-based objective to increase the population by 50% based on its declining trend of -1.3% per year (P =0.14). The U.S. Shorebird Plan (Brown et al. 2001) originally proposed an objective to increase the population of Long-billed Curlew by 30% from 20,000 to 28,500. A subsequent plan (Fellows and Jones 2009) revised the population estimate to approximately 160,000, but did not specifically retain the objective to increase the population by 30%. Our analysis nevertheless was aimed at testing whether a 30% increase is reasonable or achievable, and at finding ways to highlight those landscapes with the most potential for conservation success. Our bottom-up estimate of Long-billed Curlew populations in BCRs 9, 10 and 16 (239,200; see Priority Actions section) exceeded the continental estimate (161,181; range 120,882 – 549,351) of Fellows and Jones (2009).
Habitat Scenarios Because both Grasshopper Sparrow and Long-billed Curlew have continental objectives to increase their populations, we examined the two habitat-based strategies to increase populations of bird species: create new suitable habitat that is subsequently used, or improve the quality of existing habitat that results in increased densities of birds. There are of course, non-habitat ways to increase bird populations that are not considered here such as reducing threats or other factors that limit populations. These can be a variety of individual or interrelated factors such as those that impact or limit reproductive success (e.g., cowbird parasitism, timing of human activities) or mortality issues (e.g., collisions, pesticides). Altman and Casey (2006) used existing suitable habitat and the degrees of association with suitable habitat in our species models, and looked at several “optimistically reasonable” scenarios to increase populations. These included both moving some habitats from a lower percent suitability to a higher percent suitability (i.e., making more of the landscape available as suitable habitat and increasing occupancy rate), and improving existing lower quality grassland habitats to a higher quality resulting in increased densities of each bird species. All scenario testing was done using the combination of assumed occupancy rates and density classes by
7.37
habitat (association) rather than condition; these values are currently being used in our HABPOPS model until we have more peer-reviewed density information for each species in a variety of condition classes for each association. There are likely several opportunities in the IWJV landscape for creating new suitable grassland habitat from areas that used to be grasslands but have been degraded by invasion of woody plant species. These circumstances have most often occurred from fire suppression which has allowed species like juniper and sagebrush to establish and dominate plant communities. The creation of new habitat also is possible with conversion of agricultural crop lands to grasslands or to herbaceous-dominated agricultural lands (e.g., pasture, some crops like wheat). Finally, within existing (and occupied) grassland habitats, management could be altered to improve habitat suitability for the species in question. For our purposes, we ran mathematical scenarios to assess the potential population effects of increasing the amounts and quality of nesting habitats within three broad habitat classes used by Grasshopper Sparrow and Long-billed Curlew: agricultural lands, grasslands, and woody habitats with a grass component (e.g. sagebrush steppe, juniper savannah). For both Grasshopper Sparrow and Long-billed Curlew we applied future habitat change scenarios to estimated current habitat conditions and populations, across a matrix of the habitats listed in state IWJV implementation plans. This included 32 suitable habitat types for Grasshopper Sparrow and 42 for Long-billed Curlew. We used the same assumptions as used for population estimation analyses regarding categories of percent suitability and bird density, applying them to new habitat totals in each scenario, with the outputs being a habitat-driven population objective and acreage of habitat manipulation necessary to achieve it. We expressed population outcomes as a percentage increase, acknowledging that our population estimates themselves vary rather significantly from previous population estimates for each of the species. We view this effort as an example of how an adaptive approach to regionally-derived “bottom-up” habitat and population objectives can be undertaken, providing an opportunity to assess both assumptions about these populations, and the existing objectives published by the IWJV and by the bird conservation initiatives. Version 1.1 of this chapter will include specific objectives determined in this way.
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HABITAT-BASED (BOTTOM-UP) OBJECTIVE SETTING & TARGETING LANDSCAPES We assessed the effects of the following scenarios, alone and in combination, for both Grasshopper Sparrow and Long-billed Curlew:
for this species within the IWJV. Our combined scenario therefore represents treating 19% of the targeted habitats to produce a 65% increase in the population.
A. Convert 10% of Agricultural Lands to Grassland of Moderate Quality;
Converting 10% of the 11.4 million ac of suitable agricultural lands within the IWJV range of the Grasshopper Sparrow to moderately suitable grassland would yield about a 4% overall increase in the IWJV population (Table 14), in part because we used the same density figures for occupied agricultural habitats (75 ac/ pr) as we did for moderate quality grasslands. The biggest change would occur under the assumption that 60% of the converted grasslands would be suitable for the species, whereas just 20% of agricultural lands were assumed to be suitable habitat. Where data are available for CRP, some of the highest densities of Grasshopper Sparrow in the West have been recorded. Unfortunately, CRP was not identified in most of the land cover layers we used for our analysis, so although we included representative CRP densities in our HABPOPS model, our population estimates for agricultural lands probably under represent the current importance of enrolled CRP lands to this species.
B. Convert 10% of tilled Agricultural Lands to Pasture; C. Alter management in Grassland Habitats to increase the % suitable by one class (e.g. from 20% suitable to 30% suitable); D. Alter management in currently occupied Grassland Habitats to increase nesting density by one class (e.g. from 100 ha/pr to 50 ha/pr); and/or E. Alter management in woody habitats with a grass component to increase the % suitable and/or nesting density. Scenarios (A) and (B) would include such activities as CRP or other agricultural incentive programs to restore native grassland or to move from row agriculture into permanent (albeit grazed) cover. Scenarios (C) and (D) model the potential population effects of improved grassland management (grazing programs, fire, and removal of invasive vegetation) on the amount and quality of nesting habitat, respectively. Scenario (E) does the same for shrub steppe and savanna habitats where removal of woody vegetation or understory modification would improve the quantity or quality of habitat for these species.
Grasshopper Sparrow We ran scenarios for 5 agricultural habitat types, 22 grassland habitat types, and 5 shrub-steppe/savanna habitat types. Combining scenarios (A), (D) and (E) yielded a habitat-based population opportunity to increase Grasshopper Sparrow populations by 65% (Table 14). This could be achieved by converting 1.1 million ac of agricultural land to grassland; managing 3.3 million ac of currently occupied grassland habitats to increase nesting density; and manipulating 77,476 ac of shrub-steppe and savanna to improve suitability and increase nesting densities. There are approximately 23.6 million ha of agricultural, grassland and shrub-steppe or savannah that we deemed at least partially suitable as breeding habitat
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Our model predicted a greater gain in sparrow numbers by raising densities in 3.2 million ac of occupied areas (60% population increase) than by increasing the suitability for nesting on 2.0 million ac of various grassland types (a 20% increase in population). Clearly, these differences are in part artifacts of the broad value classes we assigned for suitability and for densities; any management actions taken to improve grassland habitat conditions across significant portions of the species’ range in the IWJV would likely increase both the amount of suitable habitat and the quality of occupied habitat (as expressed by increased bird densities) in combination. Our modeling predicted that guided habitat manipulations on 15% of the 514,485 ac of suitable shrub-steppe and savanna habitats would yield a population increase of less than 1%, because densities are low in these habitats and we assume that only 20% of the treated acreage would be occupied by sparrows. Fig. 16 displays our occupancy/density index from the HABPOPS model to highlight those parts of the Grasshopper Sparrow’s range where the greatest potential carrying capacity currently exists.
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HABITAT-BASED (BOTTOM-UP) OBJECTIVE SETTING & TARGETING LANDSCAPES Table 14 T otal habitat available within the IWJV, current population estimate, revised (projected) population estimate, habitat treatment objectives, and population increases (objectives) by habitat segment and for the population as a whole under various habitat manipulation scenarios for the Grasshopper Sparrow. GRASSHOPPER SPARROW SCENARIOS
ACRES (TOTAL)
POPULATION ESTIMATE
REVISED POP. EST.
ACRES TREATED
POP. INCR. (SEGMENT
POP. INCR. (IWJV)
A. Convert 10% of Agric. to Grassland
11,392,911
61,400
73,600
1,137,066
20%
4%
B. Convert 10% of tilled to Pasture*
11,392,911
61,400
61,400
0
0%
0%
C. Increase Grassland Suitability
11,746,541
217,300
274,500
2,116,907
26%
20%
D. Increase Grassland Nesting Density
11,746,541
217,300
385,700
3,306,954
77%
60%
516,440
700
2,800
77,467
300%
1%
23,633,628
279,400
462,100
4,521,339
-
65%
E. Manage Shrub-Steppe for GRSP Combination Scenario (A + D + E)
Photo by Ali Duvall
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HABITAT-BASED (BOTTOM-UP) OBJECTIVE SETTING & TARGETING LANDSCAPES
Figure 16 Grasshopper Sparrow habitat model, BCRs 9, 10 and 16 in the IWJV. Colors correspond to an index of the current estimated carrying capacity (estimated % occupancy) x (density) for the mapped vegetative associations.
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HABITAT-BASED (BOTTOM-UP) OBJECTIVE SETTING & TARGETING LANDSCAPES Long-billed Curlew Long-billed Curlews breed in the IWJV portions of ten western states. Our bottom-up estimates of population size exceed those published by the USFWS (Fellows and Jones 2009), and will be refined over time. All conservation scenarios to date were run using our estimate, but it is the percent (%) response, not necessarily the number of birds, that gives us an idea of the level of effort needed to stabilize or increase populations of the species. Previous conservation scenarios (Altman and Casey 2006) for seven agricultural habitat types, 24 grassland habitat types, and 11 shrub-steppe/savanna habitat types in the IWJV yielded a habitat-based population objective to increase Long-billed Curlew populations by 51% . This could be achieved by converting 1.7 million ac of agricultural land to grassland; managing 5.7 million ac of currently occupied grassland habitats to increase nesting density; and manipulating 1.2 million ac of shrub-steppe and savanna to improve suitability and/or increase nesting densities. There are approximately 28.9 million ac of agricultural, grassland and shrub-steppe or savannah that we deemed at least partially suitable as breeding habitat for this species within the IWJV. Our combined scenario therefore represents treating 22% of the targeted habitats to produce a 51% increase in the population. Converting 10% of the 17.1 million ac of suitable agricultural lands within the IWJV range of the Long-billed Curlew to moderately suitable grassland would yield about a 1% overall increase in the IWJV population, mostly because we estimate that less than 2% of the population currently nest in these agricultural habitats. In grassland habitats, our modeling predicted the greatest gain in curlew numbers would come from managing to
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raise densities in 5.7 million ac of occupied areas (a 42% population increase). Because we assigned a value of 60% suitability to all but three grassland types in our analysis, only minimal population gains (<1%) would be had by bringing the 208,908 ac of those three types up to 60% suitable (i.e., increasing occupancy). As with our sparrow analysis, these differences are in part artifacts of the value classes we assigned for suitability and for densities. Any management actions taken to improve grassland habitat conditions across significant portions of the speciesâ&#x20AC;&#x2122; range in the IWJV would likely increase both the amount of suitable habitat and the quality of occupied habitat (as expressed by increased bird densities) in combination. Continued scenario testing with our improved HABPOPS model will allow us to refine these estimates of the amount of habitat needed to achieve population goals. Our modeling predicted that guided habitat manipulations on 27% of the 4.4 million ac of suitable shrub-steppe and savanna habitats would yield an 8% overall increase in the IWJV population, by nearly quadrupling the number of curlews in this population segment. Although significant population increases can be achieved in these habitat types, this is also the habitat where the needs of other priority bird species (e.g. sagebrush species) will need to be considered in an optimization process. Fig. 13 shows our current estimate of the carrying capacity of the vegetative associations in the Long-billed Curlew portion of our HABPOPS model, identifying those landscapes where we currently estimate carrying capacity to be the greatest. Areas toward the red end of the spectrum represent places where we have the most opportunity to protect existing populations; those at the green end of the spectrum represent areas where restoration and enhancement are most needed to increase carrying capacity.
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HABITAT-BASED (BOTTOM-UP) OBJECTIVE SETTING & TARGETING LANDSCAPES
Figure 17 Long-billed Curlew habitat model, BCRs 9,10 and 16 in the IWJV. Colors correspond to an index of the current estimated carrying capacity (estimated % occupancy) x (density) for the mapped vegetative associations in our HABPOPS model. 7.42
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PRIORITY ACTIONS Recommended Approaches for Conservation, by BCR/State Previous planning efforts by IWJV partners resulted in broad objectives to protect, enhance and restore priority habitat, with priority geographies (Bird Habitat Conservation Areas) as identified by each state steering committee to represent the nexus between opportunity, threat, priority habitats, and priority species. Certainly those areas where threats are greatest will continue to receive the focus of conservation partners in the JV, but we have now winnowed the priority species to a select few representing particular habitats and conditions of concern, have spatial layers representing species models with corresponding habitat-based population estimates, and have identified regional trend-based population objectives to inform conservation. Translating those population objectives into habitat objectives and assessing the population effect of guided conservation actions is the primary function of the HABPOPS database, and we provide sidebars to conservation for each of the types covered in this section, as well as additional habitats in Appendix F. Here we present a summary of the extent, estimated condition, and population objectives for selected focal species in grassland and sagebrush in BCRs 9, 10, and 16. Note that none of our focal species are complete obligates in the truest sense. So, for example, the cumulative estimates of occupied habitat for Long-billed Curlews in BCR9 (based on our model) exceed the grassland acreage in the BCR, because the species also inhabits some agricultural, shrub steppe and savannah habitats. As we have shown with our examples, it is clear that meeting population objectives will require not only a large-scale effort, but might be achieved through various combinations of approaches. For this reason, we are seeking more guidance from the landbird science team on the process for translating our population objectives into quantitative habitat objectives. We do have the specific HABPOPS output regarding the number of acres in each condition class of each vegetative association in the focal species models, and hence can parse out objectives based on the opportunities that each represents. Acknowledging the extent of opportunities in each type is also an important element in making bottom-up objectives both meaningful and achievable.
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For each of the focal species tables in the following sections, we include BCR-state polygon specific trendbased objectives. For those with BBS trend data we used the combined BBS scores (e.g. those used for Figs. 4-9), and assigned multipliers using essentially the same system used in the PIF Continental Plan (Rich et al. 2004). Hence those polygons where declines are most severe (combined scores of 9 or 10), we have an objective to double the population (over 30 years). For moderate declines (scores of 7-8), our objective is to increase the population by 50%. Our objective for those species showing stable or unknown trend, we have adopted a 10% increase to err on the side of caution. Our goal is to maintain those species with moderate to large increases (scores of 4 or lower). Generally, it will require a combination of habitat protection, enhancement, and restoration to have any chance of increasing populations; protection alone may be adequate to maintain many populations.
BCR 9 â&#x20AC;&#x201C; Great Basin BCR 9 Habitat: Grassland (9,448,30 acres) Protect remaining blocks of native grassland habitat, with an initial priority on the largest blocks. Manage for a diversity of conditions, but emphasize residual cover and prevent or control invasive exotics.
Estimated Extent by Condition Class: 1. P oor Condition: 1,874,278 ac (very low residual cover, few natives, <10% appropriate grasses) 2. F air Condition: 5,622,834 ac (moderate cover, moderately diverse native grass, 10-30%) 3. G ood Condition: 1,874,228 ac (good residual cover, native grass >30%, few to no invasives)
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PRIORITY ACTIONS Highest Priority Species: LONG-BILLED CURLEW (CONTINENTAL OBJECTIVE: INCREASE 30%) OCCUPIED ACRES
POPULATION ESTIMATE
% OF BCR IWJV POPULATION
TREND-BASED OBJECTIVE
POPULATION OBJECTIVE
CA
545,644
11,900
6%
1.3x
15,500
9
ID
2,421,780
57,000
31%
1.3x
74,100
LBCU
9
NV
1,366,867
27,600
15%
1.3x
35,900
LBCU
9
OR
3,088,244
53,700
29%
1.3x
69,800
LBCU
9
UT
665,714
14,600
8%
1.3x
19,000
LBCU
9
WA
1,030,963
20,400
11%
1.3x
26,500
LBCU
9
WY
623
10
<1%
1.3x
10
9,119,835
185,210
100%
(1.3x)
240,810
SPECIES
BCR
STATE
LBCU
9
LBCU
BCR Totals in IWJV:
GRASSHOPPER SPARROW (CONTINENTAL OBJECTIVE: MAINTAIN) OCCUPIED ACRES
POPULATION ESTIMATE
% BCR IWJV POPULATION
COMBINED BBS SCORE
TRENDBASED OBJECTIVE
POPULATION OBJECTIVE
ID
1,667,110
44,600
30%
9
1.5x
66,900
9
NV
11,625
300
<1%
5
1x
300
GRSP
9
OR
397,307
16,400
8%
8
1.5x
24,600
GRSP
9
UT
223,734
6,000
4%
7
1.1x
6,600
GRSP
9
WA
2,405,384
184,000
57%
9
2.0x
368,000
SPECIES
BCR
STATE
GRSP
9
GRSP
BCR Totals in IWJV:
4,705,160
251,300
100%
(1.9x)
466,400
FERRUGINOUS HAWK (CONTINENTAL OBJECTIVE: MAINTAIN) SWAINSON’S HAWK (CONTINENTAL OBJECTIVE: MAINTAIN)
Major Threats/Issues: • Fragmentation, especially from energy exploration and development • Tilling: Conversion to cropland (and retirement of CRP enrollments) • Residential development in intermountain valleys • Invasive exotics, notably cheatgrass, and the role of grazing in decreasing native cover
Primary Conservation Actions Needed: • Identify and protect the largest remaining blocks within Long-billed Curlew model (see Fig. 17) • Utilize Farm Bill opportunities: native CRP, Grassland Reserves, incentives within Grasshopper Sparrow model (see Fig. 16).
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• Identify and maintain secure nesting sites for raptors • Strive for no net loss of native grassland BCR-wide
Highest Priority Geographies (as refined by HABPOPS model runs): • Selected BHCAs from previous implementaion plan (partner buy-in) • Snake River Plain (Idaho) • Palouse Prairie (Washington): Retain/expand CRP wherever possible. • Northern Utah
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PRIORITY ACTIONS BCR 9 Habitat: Sagebrush Steppe (65,385,827 acres) Estimated Extent by Condition Class: 1. P oor Condition: 13,077,165 ac (<10% sage, very low diversity of native plants, high invasives) 2. F air Condition: 39,231,496 ac (10-20% sage, moderate native plant cover, some invasives) 3. G ood Condition: 13,077,165 ac (>20% sage, diverse native understory, little or no invasives) Maintain and promote growth of native forbs and grasses in shrubsteppe habitats. Work to control largescale wildfires that promote cheatgrass invasion and the loss of high-value older sagebrush stands. Much of the conservation action that will take place over the next 5-10
years in sagebrush habitats in BCR 9 (and 10) will be driven by the needs of Greater Sage-Grouse, including the Natural Resources Conservation Service’s Sage Grouse Initiative that is being supported by the IWJV. But as we have already noted, much of the range of other sagebrush obligate focal species lies outside of the range of the grouse. For example, just 38.8% of the predicted Brewer’s Sparrow habitat in these two BCRs lies within the 100% population polygons for Greater Sage-Grouse (Fig. 18). While the grouse layer does appear to include most of the highest quality habitat for Brewer’s Sparrow in these two BCRs, our HABPOPS model predicts that these areas support 15,956,000 individuals, or just 36% of the BRSP population in BCR 9, and 54% of the BCR 10 population (11,731,100 ind.). Achieving objectives of doubling populations will clearly require conservation action throughout the species’ range.
Highest Priority Species: BREWER’S SPARROW (CONTINENTAL OBJECTIVE: INCREASE 100%) SPECIES
BCR
STATE
OCCUPIED
POPULATION
% BCR IWJV
COMBINED
ACRES
ESTIMATE
POPULATION
BBS SCORE
TRENDBASED OBJECTIVE
POPULATION OBJECTIVE
BRSP
9
CA
3,481,111
963,300
2%
10
2x
1,926,600
BRSP
9
ID
12,576,366
8,381,500
19%
9
2x
16,763,000
BRSP
9
NV
40,901,606
20,248,800
46%
9
2x
40,497,600
BRSP
9
OR
14,052,651
7,678,800
18%
10
2x
15,357,600
BRSP
9
UT
7,911,916
3,810,000
9%
9
2x
7,620,000
BRSP
9
WA
4,426,720
2,465,700
6%
8
1.5x
3,698,600
BRSP
9
WY
1,357
900
<1%
9
2x
1,800
83,351,727
43,549,000
100%
(2x)
85,865,200
BCR Totals in IWJV:
SAGE SPARROW (CONTINENTAL OBJECTIVE: INCREASE 100%) SPECIES
BCR
STATE
OCCUPIED
POPULATION
% BCR IWJV
COMBINED
ACRES
ESTIMATE
POPULATION
BBS SCORE
TRENDBASED OBJECTIVE
POPULATION OBJECTIVE
SAGS
9
CA
1,032,321
330,300
3%
7
1.5x
495,500
SAGS
9
ID
6,117,916
1,358,900
11%
7
1.5x
2,038,400
SAGS
9
NV
46,702,349
8,238,700
64%
5
1.1x
9,062,600
SAGS
9
OR
9,142,307
1,549,200
12%
7
1.5x
2,323,800
SAGS
9
UT
9,279,082
1,502,500
12%
6
1.1x
1,652,800
SAGS
9
WA
34,170
4,600
<1%
5
1.1x
5,100
72,308,145
12,841,900
100%
(1.2x)
15,578,200
BCR Totals in IWJV:
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PRIORITY ACTIONS SAGE THRASHER (CONTINENTAL OBJECTIVE: MAINTAIN) SPECIES
BCR
STATE
OCCUPIED ACRES
POPULATION ESTIMATE
% BCR IWJV POPULATION
COMBINED BBS SCORE
TREND-BASED OBJECTIVE
POPULATION OBJECTIVE
SATH
9
CA
2,519,273
217,000
4%
7
1.5x
325,500
SATH
9
ID
10,908,769
936,800
18%
8
1.5x
1,405,200
SATH
9
NV
41,180,310
2,470,100
48%
8
1.5x
3,705,200
SATH
9
OR
12,654,776
783,200
15%
8
1.5x
1,174,800
SATH
9
UT
10,084,321
472,900
9%
8
1.5x
709,400
SATH
9
WA
3,882,427
268,900
5%
6
1.1x
295,800
SATH
9
WY
711
30
<1%
6
1.1x
30
81,230,586
5,148,930
100%
(1.1x)
7,615,900
BCR Totals in IWJV:
GRAY FLYCATCHER (CONTINENTAL OBJECTIVE: MAINTAIN) GREATER SAGE-GROUSE (CONTINENTAL OBJECTIVE: MAINTAIN/INCREASE)
Major Threats/Issues: • Fragmentation, especially due to energy exploration and development • Conversion of habitat in known core (lek) areas for Greater Sage-Grouse • Changes in fire regime – stand replacement by invasives (cheat grass) • Needs of passerines not adequately addressed in grouse conservation planning
Primary Conservation Actions Needed: • Identify and protect largest remaining blocks (whether designated as grouse core areas or not) • Balance protection of areas with concentration of SageGrouse leks (designated core areas especially) with opportunities outside the range of the grouse.
Highest Priority Geographies (as refined by HABPOPS model runs): • Nevada (particularly the northeastern quadrant): For example, one HABPOPS scenario of removing juniper from 5,000 ac to enhance shrubland habitat, and converting 10,000 each of the two most widespread sagebrush types in NV BCR 9 (Intermountain Basins Big Sagebrush Shrubland, and Intermountain Basins Big Sagebrush Steppe) from poor condition to good condition would yield 13,800 Brewer’s Sparrows, or 0.1% of the objective for this polygon. • Central Oregon • Southcentral Washington • Selected BHCAs from previous implementation planning process (partner buy-in)
• Manage fire, eliminate exotics (enhancement/restoration) • Restore structure through grazing management • Maintain 50% of stands in >30-yr old condition wherever feasible • Incorporate the needs of sage-obligate passerines in management plan and Best Management Practices revisions
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PRIORITY ACTIONS
Figure 18 IWJV Brewerâ&#x20AC;&#x2122;s Sparrow model for BCRs 9 and 10, overlain by the polygons which define 100 of the known Greater Sage-Grouse leks.
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PRIORITY ACTIONS BCR 10 – Northern Rockies BCR 10 Habitat: Grassland (7,697,665 acres) Estimated Extent by Condition Class: 1. Poor Condition: 1,542,212 ac 2. Fair Condition: 4,616,590 ac 3. Good Condition: 1,538,863 ac
Highest Priority Species: LONG-BILLED CURLEW (CONTINENTAL OBEJECTIVE: INCREASE 30%) SPECIES
BCR
STATE
OCCUPIED ACRES
POPULATION ESTIMATE
% OF BCR IWJV POPULATION
TREND-BASED OBJECTIVE
POPULATION OBJECTIVE
LBCU
10
CO
89,182
800
2%
1.3x
1,000
LBCU
10
ID
253,775
4,500
10%
1.3x
5,900
LBCU
10
MT
966,636
7,400
16%
1.3x
9,700
LBCU
10
OR
726,315
12,000
25%
1.3x
15,600
LBCU
10
UT
73,342
600
1%
1.3x
800
LBCU
10
WA
60,922
600
1%
1.3x
800
LBCU
10
WY
1,732,017
21,400
45%
1.3x
27,800
3,902,189
47,300
100%
(1.3x)
61,600
BCR Totals in IWJV:
GRASSHOPPER SPARROW (CONTINENTAL OBJECTIVE: MAINTAIN) OCCUPIED ACRES
POPULATION ESTIMATE
% BCR IWJV POPULATION
COMBINED BBS SCORE
TRENDBASED OBJECTIVE
POPULATION OBJECTIVE
ID
31,734
900
2%
9
2x
1,800
10
MT
744,397
21,100
52%
9
2x
42,200
GRSP
10
OR
8,906
200
<1%
8
1.5x
300
GRSP
10
UT
23,619
700
2%
7
1.5x
1,100
GRSP
10
WA
159,230
4,400
11%
9
2x
8,800
GRSP
10
WY
327,572
13,700
34%
9
2x
27,400
1,295,458
41,000
100%
(2x)
81,600
SPECIES
BCR
STATE
GRSP
10
GRSP
BCR Totals in IWJV:
FERRUGINOUS HAWK (CONTINENTAL OBJECTIVE: MAINTAIN)
Major Threats/Issues:
Primary Conservation Actions Needed:
• Fragmentation: energy exploration and development
• Identify and protect largest remaining blocks within Long-billed Curlew model (see Fig. 7)
• Tilling: conversion of grassland to cropland • Residential development in intermountain valleys • Invasive exotics, particularly cheatgrass
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• Utilize Farm Bill in a targeted manner: identify opportunities for native CRP, incentives; target habitats within Grasshopper Sparrow priority areas (see Figs. 5, 16).
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PRIORITY ACTIONS • Identify and maintain secure nesting sites for grassland raptors • Strive for no net loss of grassland • Build a grassland conservation initiative around the needs of Long-billed Curlew
Highest Priority Geographies (as refined by HABPOPS model runs): • Selected BHCAs from previous implementation planning process (partner buy-in; subset by habitat) • Sites as indicated by HABPOPS model • Eastern edge of JV in Montana and Wyoming
Habitat: Sagebrush Steppe (32,945,319 acres) Estimated Extent by Condition Class: 1. Poor Condition: 6,589,064 ac 2. Fair Condition: 19,767,191 ac 3. Good Condition: 6,589,064 ac
Highest Priority Species: BREWER’S SPARROW (CONTINENTAL OBJECTIVE: INCREASE 100%) OCCUPIED ACRES
POPULATION ESTIMATE
% BCR IWJV POPULATION
COMBINED BBS SCORE
TRENDBASED OBJECTIVE
POPULATION OBJECTIVE
CO
1,542,505
626,200
3%
9
2.0x
1,252,400
10
ID
3,627,279
2,430,000
11%
8
1.5x
3,645,000
BRSP
10
MT
4,316,150
2,898,800
13%
8
1.5x
4,348,200
BRSP
10
OR
5,196,008
2,866,300
13%
9
2.0x
5,732,600
BRSP
10
UT
513,357
342,000
2%
8
1.5x
513,000
BRSP
10
WA
108,371
75,500
0%
7
1.5x
113,300
BRSP
10
WY
18,952,601
12,583,600
58%
8
1.5x
18,875,400
34,256,271
21,822,400
100%
(1.6x)
34,479,900
SPECIES
BCR
STATE
BRSP
10
BRSP
BCR Totals in IWJV:
SAGE SPARROW (CONTINENTAL OBJECTIVE: MAINTAIN) OCCUPIED ACRES
POPULATION ESTIMATE
% BCR IWJV POPULATION
COMBINED BBS SCORE
TRENDBASED OBJECTIVE
POPULATION OBJECTIVE
CO
1,476,615
440,300
9%
5
1.1x
484,300
10
ID
407,929
68,200
1%
7
1.5x
102,300
SAGS
10
OR
2,571,747
312,600
6%
7
1.5x
468,900
SAGS
10
UT
513,573
96,700
2%
6
1.1x
106,400
SAGS
10
WY
16,233,732
3,906,300
81%
5
1.1x
4,296,900
21,203,596
4,824,100
100%
(1.1x)
5,458,800
SPECIES
BCR
STATE
SAGS
10
SAGS
BCR Totals in IWJV:
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PRIORITY ACTIONS SAGE THRASHER (CONTINENTAL OBJECTIVE: MAINTAIN) OCCUPIED ACRES
POPULATION ESTIMATE
% BCR IWJV POPULATION
COMBINED BBS SCORE
TRENDBASED OBJECTIVE
POPULATION OBJECTIVE
CO
1,605,821
144,100
13%
6
1.1x
158,500
10
ID
1,393,142
94,900
9%
7
1.5x
142,500
SATH
10
MT
2,125,169
135,800
12%
7
1.5x
203,700
SATH
10
OR
4,585,660
205,700
18%
7
1.5x
308,600
SATH
10
UT
523,643
33,500
3%
7
1.5x
50,300
SATH
10
WA
69,655
6,600
1%
5
1.1x
7,300
SATH
10
WY
7,349,742
494,900
44%
5
1.1x
544,400
17,652,830
1,115,500
100%
(1.3x)
1,415,200
SPECIES
BCR
STATE
SATH
10
SATH
BCR Totals in IWJV:
GRAY FLYCATCHER (CONTINENTAL OBJECTIVE: MAINTAIN) GREATER SAGE-GROUSE (CONTINENTAL OBJECTIVE: MAINTAIN/INCREASE)
Major Threats/Issues: • Fragmentation, especially due to energy exploration and development • Conversion of habitat in known core (lek) areas for Greater Sage-Grouse • Changes in fire regime – stand replacement by invasives (cheat grass) • Needs of passerines not adequately addressed in grouse conservation planning
Primary Conservation Actions Needed: • Identify and protect largest remaining blocks (whether designated as grouse core areas or not); prioritize using sagebrush species model outputs (see Fig. 4). • Balance protection of areas with concentration ofSageGrouse leks (designated core areas especially) with areas outside of the range of the grouse. • Manage fire, eliminate exotics (enhancement/ restoration) • Restore structure through grazing management • Maintain 50% of stands in >30-yr old condition wherever feasible
Highest Priority Geographies (as refined by HABPOPS model runs): • Green River Basin, Wyoming: For example, one HABPOPS scenario of treating 10% of each of the two most widespread sagebrush types in WY BCR10 (Intermountain Basins Big Sagebrush Shrubland, and Intermountain Basins Big Sagebrush Steppe) from poor condition to good condition (total, 281,358 ac) would yield 158,000 Brewer’s Sparrows, an increase of 1% of the current population of the polygon, and 3% of the objective increase for this polygon. • Southwestern Montana: For example, one HABPOPS scenario of treating 125,000 ac (3%) of the sagebrush habitats two most widespread sagebrush types in MT BCR 10) to move them from from poor condition to good condition would yield 91,055 Brewer’s Sparrows, an increase of 3% of the current population of the polygon, and 6% of the objective increase for this polygon. Conversely, protecting 125,000 ac of the highest quality sagebrush habitat in this polygon would protect 3% of the population. • Selected BHCAs from previous implementation planning process (partner buy-in)
• Incorporate the needs of sage-obligate passerines in management plan and Best Management Practices revisions
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PRIORITY ACTIONS BCR 16 – Southern Rockies BCR 16 Habitat: Grassland (15,456,308 acres) Highest Priority Species: FERRUGINOUS HAWK (CONTINENTAL OBJECTIVE: MAINTAIN) LONG-BILLED CURLEW (CONTINENTAL OBJECTIVE: INCREASE 30%) OCCUPIED ACRES
POPULATION ESTIMATE
% OF BCR IWJV POPULATION
TRENDBASED OBJECTIVE
POPULATION OBJECTIVE
POPULATION OBJECTIVE
CO
5,857
100
1%
1.3x
130
158,500
16
ID
1,489
30
<1%
1.3x
40
142,500
LBCU
16
NM
327,227
5,300
79%
1.3x
6,900
203,700
LBCU
16
UT
25,543
300
4%
1.3x
400
308,600
LBCU
16
WY
39,284
1,000
15%
1.3x
1,300
50,300
399,398
6,730
100%
(1.3x)
8,770
1,415,200
OCCUPIED ACRES
POPULATION ESTIMATE
% BCR IWJV POPULATION
COMBINED BBS SCORE
TRENDBASED OBJECTIVE
POPULATION OBJECTIVE
SPECIES
BCR
STATE
LBCU
16
LBCU
BCR Totals in IWJV:
GRASSHOPPER SPARROW SPECIES
BCR
STATE
GRSP
16
ID
1,329
40
1%
7
1.5x
60
GRSP
16
UT
34,810
900
17%
5
1.1x
1,000
GRSP
16
WY
69,211
4,300
82%
7
1.5x
6,500
105,350
5,240
100%
(1.4x)
7,560
BCR Totals in IWJV:
Major Threats/Issues: • Fragmentation: energry exploration and development • Tilling: conversion of grassland to row crops • Residential development in intermountain valleys • Invasive exotics, particularly cheatgrass
Primary Conservation Actions Needed: • Identify and protect largest remaining blocks • Utilize Farm Bill in a targeted manner: identify opportunities for native CRP, incentives • Identify and maintain secure nesting sites for grassland raptors • Strive for no net loss of grassland
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PRIORITY ACTIONS BCR 16 Habitat: Sagebrush Steppe (12,450,363 acres) Highest Priority Species: GUNNISON SAGE-GROUSE (CONTINENTAL OBJECTIVE: MAINTAIN/INCREASE) GREATER SAGE-GROUSE (CONTINENTAL OBJECTIVE: MAINTAIN/INCREASE) BREWER’S SPARROW (CONTINENTAL OBJECTIVE: INCREASE 100%) OCCUPIED ACRES
POPULATION ESTIMATE
% BCR IWJV POPULATION
COMBINED BBS SCORE
TRENDBASED OBJECTIVE
POPULATION OBJECTIVE
AZ
7,321,127
1,365,600
17%
9
2.0x
2,731,200
16
CO
6,095,469
1,979,000
25%
10
2.0x
3,958,000
BRSP
16
ID
39,731
25,100
0%
9
2.0x
50,200
BRSP
16
NM
4,326,063
844,100
11%
8
1.5x
1,266,200
BRSP
16
UT
9,739,062
3,513,100
44%
9
2.0x
7,026,200
BRSP
16
WY
492,081
186,300
2%
9
2.0x
372,600
28,013,532
7,913,200
100%
(1.9x)
15,404,400
SPECIES
BCR
STATE
BRSP
16
BRSP
BCR Totals in IWJV:
SAGE SPARROW (CONTINENTAL OBJECTIVE: MAINTAIN) BCR
STATE
OCCUPIED ACRES
POPULATION ESTIMATE
% BCR IWJV POPULATION
COMBINED BBS SCORE
TRENDBASED OBJECTIVE
POPULATION OBJECTIVE
SAGS
16
AZ
4,062,460
343,000
11%
5
1.1x
377,300
SAGS
16
CO
6,088,990
583,900
18%
5
1.1x
642,300
SAGS
16
ID
35,188
2,400
<1%
7
1.5x
3,600
SAGS
16
NM
2,454,612
215,000
7%
7
1.5x
322,500
SAGS
16
UT
13,849,871
2,026,100
64%
6
1.1x
2,228,700
SAGS
16
WY
123,850
10,600
<1%
5
1.1x
11,700
26,614,971
3,181,000
100%
(1.1x)
3,586,100
SPECIES
BCR Totals in IWJV:
SAGE THRASHER (CONTINENTAL OBJECTIVE: MAINTAIN) OCCUPIED ACRES
POPULATION ESTIMATE
% BCR IWJV POPULATION
COMBINED BBS SCORE
TRENDBASED OBJECTIVE
POPULATION OBJECTIVE
AZ
7,293,778
123,800
27%
6
1.1x
136,200
16
CO
323,201
10,000
2%
6
1.1x
11,000
SATH
16
ID
39,053
2,400
1%
7
1.5x
3,600
SATH
16
NM
4,932,820
69,900
15%
8
1.5x
104,900
SATH
16
NV
1,119
60
<1%
7
1.5x
90
SATH
16
UT
2,977,001
232,100
50%
7
1.5x
348,200
SATH
16
WY
440,348
22,400
5%
5
1.1x
24,600
16,007,319
460,660
100%
(1.4x)
628,590
SPECIES
BCR
STATE
SATH
16
SATH
BCR Totals in IWJV:
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PRIORITY ACTIONS GRAY FLYCATCHER (CONTINENTAL OBJECTIVE: MAINTAIN)
Major Threats/Issues: • Fragmentation, especially due to energy exploration and development • Conversion of habitat in known core (lek) areas for Greater Sage-Grouse • Changes in fire regime – stand replacement by invasives (cheat grass) • Needs of passerines not adequately addressed in grouse conservation planning
Primary Conservation Actions Needed: • Identify and protect largest remaining blocks (whether designated as grouse core areas or not) • Protect areas with concentration of Sage-Grouse leks (designated core areas especially) • Manage fire, eliminate exotics (enhancement/ restoration) • Restore structure through grazing management • Maintain 50% of stands in >30-yr old condition wherever feasible • Incorporate the needs of sage-obligate passerines in management plan and Best Management Practices revisions
Highest Priority Geographies (as refined by HABPOPS model runs): • Gunnison Sage-Grouse Conservation (Core) areas as defined by partners • Greater Sage-Grouse Coservation (Core) areas as defined by partners
• Selected BHCAs from previous implementation planning process (partner buy-in; subset by habitat) • Sites as indicated by HABPOPS model
Research/Monitoring Needs Various PIF documents have summarized research and monitoring needs, and they are not reiterated here. Our HABPOPS summary document will include detailed summaries of the specific data needs faced by the IWJV and its partners as they continue to implement Strategic Habitat Conservation. Future Revisions. This implementation plan chapter will be adapted and expanded with supplemental documents as needed, based on review and further analyses by the Landbird Science Team and the IWJV Science Coordinator, on a schedule identified by the latter. The following are the topics that will be addressed in some detail in the HABPOPS summary document and these supplements. The Western Working Group of PIF is addressing several key areas as part of the implementaton of their own 5-yr Action Plan (Neel and Sallabanks 2009). They include the implementation of rangewide Flammulated Owl surveys which are yielding data describing habitat associations, occupancy rates, and density; and grid-based monitoring for landbird communities that allow for calculation of occupancy rates and habitat-specific densities that will feed directly into the HABPOPS database. A. Species: Limiting Factors and Response to Management Actions B. Habitats: Climate Change and Response to Management Actions
C. HABPOPS Model Assumptions D. Habitat Restoration E. Habitat Enhancement F. Habitat Protection
Photo by Daniel Casey
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LITERATURE CITED Altman, B. 2008. Ground-truthing landbird population habitats in sagebrush habitats of eastern Oregon and Washington. Unpublished Report to the USDA Bureau of Land Management Order Number LO7PX02715. American Bird Conservancy.
Fellows, S.D., and S. L. Jones. 2009. Status assessment and conservation action plan for the Long-billed Curlew (Numenius americanus). U.S. Department of Interior, Fish and Wildlife Service. Biol. Tech. Publ., FWS/ RTP-R6012-2009, Washington, D.C.
Altman, B. and D. Casey. 2006. Process and preliminary outcomes of setting habitat-based population objectives for priority grassland species in the Intermountain West. Unpublished Report to the Intermountain West Joint Venture and the US Geological Survey. American Bird Conservancy.
Neel, L., and R. Sallabanks. 2009. The Partners in Flight Western Working Group Five-Year Action Plan, 2008-2012. (http://sites.google.com/site/ pifwesternworkinggroup/products/archived-actionplansplans )
Altman, B. and D. Casey. 2008. Population Sizes and Response to Management For Three Priority Bird Species in Sagebrush Habitats of Eastern Oregon and Washington. Unpublished Report to the USDA Bureau of Land Management, Order Number HAP074378. American Bird Conservancy. Bart, J. 2005: Monitoring the abundance of bird populations. Auk 122:15–25. Berlanga, H., J. A. Kennedy, T. D. Rich, M. C. Arizmendi, C. J. Beardmore, P. J. Blancher, G. S. Butcher, A. R. Couturier, A. A. Dayer, D. W. Demarest, W. E. Easton, M. Gustafson, E. Iñigo-Elias, E. A. Krebs, A. O. Panjabi, V. Rodriguez Contreras, K. V. Rosenberg, J. M. Ruth, E. Santana Castellón, R. Ma. Vidal, and T. Will. 2010. Saving Our Shared Birds: Partners in Flight Tri- National Vision for Landbird Conservation. Cornell Lab of Ornithology: Ithaca, NY. Brown, S., C. Hickey, B. Harrington, and R. Gill, eds. 2001. The U.S. Shorebird Conservation Plan, 2nd ed. Manomet Center for Conservation Sciences, Manomet, MA.
Prior-Magee, J.S., K.G. Boykin, D.F. Bradford, W.G. Kepner, J.H. Lowry, D.L. Schrupp, K.A. Thomas, and B.C. Thompson, editors. 2007. Southwest Regional Gap Analysis Project Final Report. U.S. Geological Survey, Gap Analysis Program, Moscow, ID. 441p. Quigley, T.M., R.W. Haynes, and R.T. Graham (tech eds.). 1996. Integrated scientific assessment for ecosystem management in the interior Columbia Basin and portions of the Klamath and Great basins. USDA Forest Service General Technical Report PNW GTR-382. Rich, T.D., C.J. Beardmore, H. Berlanga, P.J. Blancher, M.S.W. Bradstreet, G.S. Butcher, D.W. Demarest, E.H. Dunn, W. C. Hunter, E.E. Iñigo-Elias, J. A. Kennedy, A.M. Martell, A.O. Panjabi, D.N. Pashley, K.V. Rosenberg, C.M. Rustay, J.S. Wendt, and T.C. Will. 2004. Partners in Flight North American Landbird Conservation Plan. Cornell Lab of Ornithology, Ithaca, NY 84p. U.S. Fish and Wildlife Service. 2004. A blueprint for the future of migratory birds: Migratory Bird program strategic plan 2004-2014. Division of Migratory Bird Management, U.S. Fish Wildlife Service, Arlington, Virginia. 21 pp
Carter, M.F., W.C. Hunter, D.N. Pashley, and K.V. Rosenberg. 2000. Setting conservation priorities for landbirds in the United States: The Partners in Flight approach. Auk 117:541-548.
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APPENDIX A. LANDBIRD SCIENCE TEAM MEMBERS • John Alexander, Klamath Bird Observatory • Bob Altman, American Bird Conservancy • Geoff Geupel, PRBO Conservation Science • Michael Green, U.S. Fish and Wildlife Service • David Hanni, Rocky Mountain Bird Observatory • Aaron Holmes, PRBO Conservation Science • Larry Neel, Nevada Department of Wildlife • Russ Norvell, Utah Division of Wildlife Resources • Terry Rich, U.S. Fish and Wildlife Service • Rex Sallabanks, Idaho Department of Fish and Game • Jaime Stephens, Klamath Bird Observatory Note: The Landbird Strategy was developed through collaboration with the Partners in Flight - Western Working Group. We give special thanks to the working group members that provided valuable input to the Strategy.
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APPENDIX B. LANDBIRD SPECIES OF CONTINENTAL IMPORTANCE IN THE INTERMOUNTAIN WEST AVIFAUNAL BIOME (BCRs 9, 10, 16). Species in bold are Watch List, non-bold are Stewardship species (after Rich et al. 2004) % BREEDING POP.
%WINTER POP.
PRIMARY HABITAT
CONTINENTAL POP. OBJECTIVE
MONITORING NEED*
100%
100%
Sage
Increase 100%
**
Greater Sage-Grouse
80%
80%
Sage
Increase 100%
Mo2
Bendire’s Thrasher
45%
6%
Shrub
Increase 100%
Mo2
California Condor
41%
41%
Cliffs
Recovery Plan
**
Spotted Owl
20%
20%
Conifer
Recovery Plan
**
Brewer’s Sparrow
94%
1%
Sage
Increase 100%
**
Pinyon Jay
92%
92%
Woodland
Increase 100%
**
Lewis’s Woodpecker
87%
52%
Riparian
Maintain/Increase
Mo2
Cassin’s Finch
86%
61%
Conifer
Maintain
**
Willow Flycatcher
46%
0%
Riparian
Increase 50%
**
White-throated Swift
38%
<1%
Canyon
Increase 100%
Mo2
Rufous Hummingbird
36%
0%
Shrub
Increase 100%
**
Black Swift
29%
0%
Waterfall
Increase 50%
Mo2
Olive-sided Flycatcher
21%
0%
Conifer
Increase 100%
Mo3
Swainson’s Hawk
15%
0%
Grassland
Maintain/Increase
**
Grace’s Warbler
14%
0%
Mixed
Increase 50%
**
SPECIES IMMEDIATE ACTION: Gunnison Sage-Grouse
MANAGEMENT:
LONG-TERM PLANNING AND RESPONSIBILITY: Black Rosy-Finch
100%
>99%
Tundra
Maintain/Increase
Mo2
Brown-capped Rosy-Finch
100%
99%
Tundra
Maintain/Increase
Mo2
Sage Thrasher
99%
31%
Sage
Maintain
**
Gray Flycatcher
96%
0%
Woodland
Maintain
Mo2
Calliope Hummingbird
95%
0%
Shrub
Maintain/Increase
Mo2
Red-naped Sapsucker
95%
9%
Mixed
Maintain
**
Williamson’s Sapsucker
94%
15%
Conifer
Maintain
Mo2
Green-tailed Towhee
92%
2%
Shrub
Maintain
**
Clark’s Nutcracker
89%
89%
Conifer
Maintain
**
Dusky Flycatcher
86%
0%
Shrub
Maintain
**
Sage Sparrow
83%
35%
Sage
Maintain
**
Mountain Bluebird
76%
35%
Shrub
Maintain
**
Gray Vireo
68%
0%
Woodland
Maintain
Mo2
Virginia’s Warbler
62%
0%
Woodland
Maintain/Increase
Mo2
Flammulated Owl
40%
0%
Conifer
Maintain/Increase
Mo1
White-headed Woodpecker
27%
27%
Conifer
Maintain
Mo2
McCown’s Longspur
21%
<1%
Grassland
Maintain/Increase
**
* Monit o r i n g N e e d ( l o n g - te r m, c on tin e n ta l sc a le ) : Mo1 = n o trend data; M o 2=i mpreci se trends; M o 3= i nadequate co verag e i n norther n p orti on of ra ng e ; * * = g e n e r a l l y a de qu a te tre n d mon itor in g, bu t some i ssues (e.g . bi as) may no t have been adequatel y acco unted fo r.
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APPENDIX C. TOTAL ACREAGE BY IWJV HABITAT TYPE BY STATE AND BCR COVER TYPE
AZ-16
AZ-33
AZ-34
AZ-35
CA-5
CA-9
AGRICULTURAL
19,390
566
6,461
3,643
42,685
539,563
2,377,966
2,999
609,000
28,276
98,716
203,465
43,215
2,315
86,368
1,365
155,486
95,699
OTHER SHRUB
3,074,999
817,001
198,503
112,834
-
941,315
GREASEWOOD/SALTBUSH
5,249,685
30,686
521,400
92
-
82,724
SAGEBRUSH STEPPE
1,309,117
9,775
70,021
3
44,135
3,566,527
702,694
4,764
2,796,102
-
39,898
788,257
1,813
-
163,797
442
15,012
258,947
6,533,385
216,807
2,572,236
8,367
50,046
950,480
-
-
496
-
435,152
326,683
116,471
33
238,723
-
609,252
892,472
SPRUCE-FIR
32,456
-
52,307
-
-
11,520
ASPEN WOODLAND
21,833
-
80,413
-
-
32,065
WATER
24,188
16,675
8,772
1
16,040
264,105
122
104
3
-
16,082
63,321
2,379
11,682
1,277
-
-
91,566
48,551
3,494
6,931
366
3,074
122,923
RIPARIAN HERBACEOUS
-
-
-
-
-
-
RIPARIAN SHUBLAND
7
-
-
-
-
54
2,092,347
123,181
188,235
107
44,138
705,723
21,650,619
1,240,083
7,601,045
155,496
1,569,715
9,937,409
GRASSLAND MOUNTAIN SHRUBLAND
DRY PONDEROSA/FIR FOREST PINE-OAK WOODLAND JUNIPER/PINE WOODLAND OTHER FOREST MID-ELEVATION MIXED CONIFER
WET MEADOW/MARSH OTHER WETLAND RIPARIAN WOODLAND
OTHER/UNVEGETATED SUBTOTALS
7.57
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APPENDIX C. TOTAL ACREAGE BY IWJV HABITAT TYPE BY STATE AND BCR COVER TYPE
CA-15
CA-32
CA-33
CO-10
C0-16
ID-9
AGRICULTURAL
99,013
31,135
210
200,837
2,301,809
5,637,417
GRASSLAND
73,180
97,041
1,663
110,196
2,195,266
2,777,988
284,806
82,956
-
35,238
2,854,111
314,605
5,908
2
3,939,252
-
172,248
48,689
-
-
111,076
111,976
1,864,853
489,432
414,919
20
215,372
1,545,047
3,967,301
12,582,661
48,349
19,123
-
51
2,543,851
436,010
7,754
70,623
-
-
1
1
52,137
-
206,721
147,953
5,050,388
573,691
537,404
90,507
7,532
4,670
1,800,544
218,129
2,351,132
16,267
227
141
1,668,423
371,083
-
-
199
4,531,111
216,043
10,556
-
166
6,097
3,298,573
669,752
395,366
29,514
4,675
4,590
46,690
2,221
124
39
483,136
89,180
2
-
269
5,600
11,266
13,901
12,783
5,305
1,878
9,361
204,391
400,109
RIPARIAN HERBACEOUS
-
-
-
-
426
-
RIPARIAN SHUBLAND
-
-
-
30
695,606
29,062
374,273
43,958
373,190
122,119
2,628,157
2,264,824
4,714,272
488,673
4,862,354
2,304,143
36,271,461
27,275,425
MOUNTAIN SHRUBLAND OTHER SHRUB GREASEWOOD/SALTBUSH SAGEBRUSH STEPPE DRY PONDEROSA/FIR FOREST PINE-OAK WOODLAND JUNIPER/PINE WOODLAND OTHER FOREST MID-ELEVATION MIXED CONIFER SPRUCE-FIR ASPEN WOODLAND WATER WET MEADOW/MARSH OTHER WETLAND RIPARIAN WOODLAND
OTHER/UNVEGETATED SUBTOTALS
7.58
142,849
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APPENDIX C. TOTAL ACREAGE BY IWJV HABITAT TYPE BY STATE AND BCR COVER TYPE
ID-10
ID-16
MT-10
MT-17
NM-16
NM-34
SPRUCE-FIR
32,456
-
52,307
-
-
11,520
359,548
1,573
1,439,221
4,725
254,209
2,759
1,689,319
1,335
3,036,858
23,622
10,144,072
1,191,341
MOUNTAIN SHRUBLAND
798,446
8,884
755,902
314
360,213
103,153
OTHER SHRUB
716,177
-
581,660
235
236,042
164,547
448
25
71
4
4,584,010
223,145
SAGEBRUSH STEPPE
3,824,796
35,387
4,331,266
19,281
1,115,486
3,044
DRY PONDEROSA/FIR FOREST
1,971,057
276
2,766,877
1,517
2,973,448
2,047,204
-
-
-
-
3,602
194,968
35,800
3,369
51,402
83
9,240,942
2,509,090
OTHER FOREST
2,394,613
33,435
3,651,103
-
65,595
4,911
MID-ELEVATION MIXED CONIFER
6,894,060
35,860
3,679,513
-
939,007
156,477
SPRUCE-FIR
3,893,469
12,515
5,074,736
14
378,115
18,800
ASPEN WOODLAND
499,654
83,715
308,171
159
305,473
97,515
WATER
281,686
68
376,204
123
82,068
522
WET MEADOW/MARSH
828,638
679
1,012,187
1,260
35,527
1,421
19,038
1
18,478
34
10,511
411
447,233
2,679
661,244
4,747
298,144
18,242
77
-
75
-
-
-
90,189
2,743
196,069
161
21,531
3,479
1,236,789
1,383
2,174,934
3,331
1,650,158
119,744
25,981,036
223,927
30,115,971
59,611
32,698,155
6,860,774
AGRICULTURAL GRASSLAND
GREASEWOOD/SALTBUSH
PINE-OAK WOODLAND JUNIPER/PINE WOODLAND
OTHER WETLAND RIPARIAN WOODLAND RIPARIAN HERBACEOUS RIPARIAN SHUBLAND OTHER/UNVEGETATED SUBTOTALS
7.59
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APPENDIX C. TOTAL ACREAGE BY IWJV HABITAT TYPE BY STATE AND BCR COVER TYPE
NM-35
NV-9
NV-15
NV-16
NV-33
OR-5
311,874
507,743
15,389
-
10,259
408
8,167,031
1,826,679
5,216
-
4,584
23,139
170,463
634,892
13,147
2,248
19,888
-
8,759,971
1,632,004
-
36,622
5,690,249
11,989
413,430
14,649,557
877
955
1,874,238
-
1,720
27,677,347
30,342
174
657,090
2,236
DRY PONDEROSA/FIR FOREST
123,817
5,401
44,155
1,527
-
16,465
PINE-OAK WOODLAND
723,247
11
-
-
-
309
1,583,862
8,491,827
34,800
27,048
305,284
-
24,228
133,306
37,181
23,480
537,035
MID-ELEVATION MIXED CONIFER
8,524
65,886
534
35
35,696
486,816
SPRUCE-FIR
3,229
90,173
-
-
-
18,738
ASPEN WOODLAND
7,556
348,207
51
-
-
-
WATER
69,559
215,600
32,937
106,315
28,808
WET MEADOW/MARSH
11,712
95,392
3,850
-
3,963
6,801
OTHER WETLAND
129,730
1,580,328
549
0
165,443
203
RIPARIAN WOODLAND
124,879
277,952
8,751
-
26,872
32,381
-
-
-
-
-
-
194
754
557
-
-
-
869,461
2,704,212
7,386
577,223
34,664
21,504,486
60,937,273
236,924
9,500,582
1,199,992
AGRICULTURAL GRASSLAND MOUNTAIN SHRUBLAND OTHER SHRUB GREASEWOOD/SALTBUSH SAGEBRUSH STEPPE
JUNIPER/PINE WOODLAND OTHER FOREST
RIPARIAN HERBACEOUS RIPARIAN SHUBLAND OTHER/UNVEGETATED SUBTOTALS
7.60
71,405
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APPENDIX C. TOTAL ACREAGE BY IWJV HABITAT TYPE BY STATE AND BCR COVER TYPE
OR-9
OR-10
UT-9
UT-10
UT-16
UT-33
AGRICULTURAL
2,841,754
412,217
1,284,455
1,276
819,795
276
GRASSLAND
2,226,958
612,423
917,709
1,688
473,052
-
101,531
326,086
293,860
5,990
1,681,893
-
54,978
14,612
10,193
-
2,787,461
107,165
595,045
14,586
5,385,170
9,594
2,915,812
2,383
13,425,926
3,615,581
3,856,752
541,096
5,331,320
75
2,202,132
1,276,978
608
63
500,301
-
137,528
-
-
-
-
-
JUNIPER/PINE WOODLAND
1,403,029
1,505,594
3,053,718
90,879
7,535,855
223
OTHER FOREST
1,187,134
442,502
87,729
435
595,744
-
MID-ELEVATION MIXED CONIFER
1,129,631
3,360,330
76,175
357
697,294
-
SPRUCE-FIR
23,718
403,529
29,519
187
1,082,754
-
ASPEN WOODLAND
48,631
191,458
57,083
6,871
1,803,589
-
WATER
331,061
31,326
1,348,168
1,427
272,242
-
WET MEADOW/MARSH
190,257
126,116
116,535
89
116,093
14
OTHER WETLAND
612,075
15,426
2,779,649
3,181
1,288
87
RIPARIAN WOODLAND
223,208
242,907
95,419
58,860
297,989
58
-
-
-
-
-
-
15,162
18,142
671
-
72,798
-
1,714,284
682,418
1,693,878
31,549
5,429,967
4,543
28,464,040
13,292,230
21,087,290
753,542
32,415,246
114,826
MOUNTAIN SHRUBLAND OTHER SHRUB GREASEWOOD/SALTBUSH SAGEBRUSH STEPPE DRY PONDEROSA/FIR FOREST PINE-OAK WOODLAND
RIPARIAN HERBACEOUS RIPARIAN SHUBLAND OTHER/UNVEGETATED SUBTOTALS
7.61
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APPENDIX C. TOTAL ACREAGE BY IWJV HABITAT TYPE BY STATE AND BCR COVER TYPE
WA-5
WA-9
WA-10
WY-9
WY-10
WY-16
81
7,515,645
125,161
3,491
1,106,479
52,786
1,051
1,741,954
837,005
244
1,442,870
264,617
280
38,327
168,005
103
224,211
53,319
16,403
229,304
27,101
146
330,681
107,556
GREASEWOOD/SALTBUSH
-
24,317
97
4,612,398
3,317
SAGEBRUSH STEPPE
8
4,745,575
130,197
1,362
18,984,506
691,579
49
678,919
420,655
9,635
420,530
148,545
-
155,004
-
-
-
-
24,944
5,501
3
850,482
162,442
34,924
371,737
370,595
638
2,321,830
516,695
MID-ELEVATION MIXED CONIFER
102,744
2,262,040
2,821,266
86
85,851
47,745
SPRUCE-FIR
166,488
1,332,591
81,411
5,061
2,319,330
110,819
-
24,608
3,127
3,017
372,334
71,106
WATER
1,603
340,836
81,103
3
329,038
4,135
WET MEADOW/MARSH
1,135
29,026
66,470
1,810
625,654
550
84
15,910
1,195
71
633,249
51,120
1,863
148,915
47,765
455
520,544
25,178
RIPARIAN HERBACEOUS
-
-
-
-
-
-
RIPARIAN SHUBLAND
-
10,574
159
89
44,981
-
12,098
1,282,581
514,065
1,496
4,320,388
9,981
338,812
20,972,808
5,700,879
27,710
39,545,356
2,321,490
AGRICULTURAL GRASSLAND MOUNTAIN SHRUBLAND OTHER SHRUB
DRY PONDEROSA/FIR FOREST PINE-OAK WOODLAND JUNIPER/PINE WOODLAND OTHER FOREST
ASPEN WOODLAND
OTHER WETLAND RIPARIAN WOODLAND
OTHER/UNVEGETATED SUBTOTALS
7.62
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APPENDIX C. TOTAL ACREAGE BY IWJV HABITAT TYPE BY STATE AND BCR COVER TYPE
WY-17
WY-18
AGRICULTURAL
180,409
653,568
GRASSLAND
934,905
1,892,076
7,258
34,720
5
183
GREASEWOOD/SALTBUSH
157,363
36,039
SAGEBRUSH STEPPE
880,622
208,376
2,078
2,380
-
-
84,915
21,399
OTHER FOREST
-
16
MID-ELEVATION MIXED CONIFER
5
418
18
-
6
V
17,685
7,126
MOUNTAIN SHRUBLAND OTHER SHRUB
DRY PONDEROSA/FIR FOREST PINE-OAK WOODLAND JUNIPER/PINE WOODLAND
SPRUCE-FIR ASPEN WOODLAND WATER WET MEADOW/MARSH
4
OTHER WETLAND
26,501
11,182
RIPARIAN WOODLAND
41,229
30,754
RIPARIAN HERBACEOUS
-
-
RIPARIAN SHUBLAND
-
10
212,397
130,213
2,545,396
3,028,462
OTHER/UNVEGETATED SUBTOTALS
Photo by Daniel Casey
7.63
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APPENDIX D. CROSSWALK OF VEGETATIVE ASSOCIATIONS BY IWJV COVER TYPES VEGETATIVE ASSOCIATIONS
IWJV COVER TYPES
2
CRP
Agriculture
11
Pasture/Hay
Agriculture
12
Cultivated Cropland
Agriculture
13
High Structure Agriculture
Agriculture
441
Agriculture
Agriculture
512
Cropland
Agriculture
517
Dryland Grain Crops
Agriculture
520
Irrigated Grain Crops
Agriculture
521
Irrigated Hayfield
Agriculture
522
Irrigated Row and Field Crops
Agriculture
535
Orchard and Vineyard
Agriculture
536
Pasture
Agriculture
541
Rice
Agriculture
84
Inter-Mountain Basins Aspen-Mixed Conifer Forest and Woodland
Aspen
311
Rocky Mountain Aspen Forest and Woodland
Aspen
419
Inter-Mountain West Aspen-Mixed Conifer Forest and Woodland Complex Aspen
504
Aspen
Aspen
52
California Montane Jeffrey Pine Woodland
Dry Ponderosa/Fir Forest
71
Northern Rocky Mountain Ponderosa Pine Woodland and Savanna
Dry Ponderosa/Fir Forest
72
Southern Rocky Mountain Ponderosa Pine Woodland
Dry Ponderosa/Fir Forest
77
Middle Rocky Mountain Montane Douglas-fir Forest and Woodland
Dry Ponderosa/Fir Forest
208
Northwestern Great Plains - Black Hills Ponderosa Pine Woodland and
Dry Ponderosa/Fir Forest
Savanna 416
Rocky Mountain Ponderosa Pine Woodland
Dry Ponderosa/Fir Forest
436
Mediterranean California Ponderosa-Jeffrey Pine Forest and Woodland
Dry Ponderosa/Fir Forest
539
Ponderosa Pine
Dry Ponderosa/Fir Forest
112
Willamette Valley Upland Prairie and Savanna
Grassland
113
Klamath-Siskiyou Xeromorphic Serpentine Savanna and Chaparral
Grassland
121
California Mesic Serpentine Grassland
Grassland
123
Columbia Basin Foothill and Canyon Dry Grassland
Grassland
128
Northern Rocky Mountain Lower Montane, Foothill and Valley Grassland
Grassland
129
Northern Rocky Mountain Subalpine-Upper Montane Grassland
Grassland
130
Northwestern Great Plains Mixedgrass Prairie
Grassland
131
Columbia Basin Palouse Prairie
Grassland
137
Western Great Plains Sand Prairie
Grassland
138
Western Great Plains Shortgrass Prairie
Grassland
139
North Pacific Alpine and Subalpine Dry Grassland
Grassland
7.64
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APPENDIX D. CROSSWALK OF VEGETATIVE ASSOCIATIONS BY IWJV COVER TYPES VEGETATIVE ASSOCIATIONS
IWJV COVER TYPES
147
Introduced Upland Vegetation - Annual Grassland
Grassland
148
Introduced Upland Vegetation - Perennial Grassland
Grassland
152
Recently burned grassland
Grassland
211
California Northern Coastal Grassland
Grassland
227
Central Mixedgrass Prairie
Grassland
327
Southern Rocky Mountain Montane-Subalpine Grassland
Grassland
328
Inter-Mountain Basins Semi-Desert Grassland
Grassland
338
North Pacific Montane Grassland
Grassland
339
Western Great Plains Foothill and Piedmont Grassland
Grassland
452
Chihuahuan Gypsophilous Grassland and Steppe
Grassland
454
Chihuahuan Sandy Plains Semi-Desert Grassland
Grassland
457
Chihuahuan-Sonoran Desert Bottomland and Swale Grassland
Grassland
476
Western Great Plains Sandhill Prairie
Grassland
478
Western Great Plains Tallgrass Prairie
Grassland
480
Apacherian-Chihuahuan Piedmont Semi-Desert Grassland and Steppe
Grassland
503
Annual Grassland
Grassland
537
Perennial Grassland
Grassland
119
Inter-Mountain Basins Semi-Desert Shrub-Steppe
Greasewood/Saltbush
309
Inter-Mountain Basins Wash
Greasewood/Saltbush
317
Inter-Mountain Basins Mat Saltbush Shrubland
Greasewood/Saltbush
323
Inter-Mountain Basins Mixed Salt Desert Scrub
Greasewood/Saltbush
332
Inter-Mountain Basins Greasewood Flat
Greasewood/Saltbush
426
Sonora-Mojave Mixed Salt Desert Scrub
Greasewood/Saltbush
427
Inter-Mountain Basins Semi-Desert Shrub Steppe
Greasewood/Saltbush
453
Chihuahuan Mixed Salt Desert Scrub
Greasewood/Saltbush
515
Desert Wash
Greasewood/Saltbush
43
Columbia Plateau Western Juniper Woodland and Savanna
Juniper/Pine Woodland
68
Rocky Mountain Foothill Limber Pine-Juniper Woodland
Juniper/Pine Woodland
114
Northern Rocky Mountain Foothill Conifer Wooded Steppe
Juniper/Pine Woodland
316
Great Basin Pinyon-Juniper Woodland
Juniper/Pine Woodland
325
Inter-Mountain Basins Juniper Savanna
Juniper/Pine Woodland
418
Colorado Plateau Pinyon-Juniper Woodland
Juniper/Pine Woodland
421
Colorado Plateau Pinyon-Juniper Shrubland
Juniper/Pine Woodland
450
Recently Chained Pinyon-Juniper Areas
Juniper/Pine Woodland
463
Madrean Juniper Savanna
Juniper/Pine Woodland
465
Madrean Pinyon-Juniper Woodland
Juniper/Pine Woodland
472
Southern Rocky Mountain Juniper Woodland and Savanna
Juniper/Pine Woodland
7.65
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APPENDIX D. CROSSWALK OF VEGETATIVE ASSOCIATIONS BY IWJV COVER TYPES VEGETATIVE ASSOCIATIONS
IWJV COVER TYPES
473
Southern Rocky Mountain Pinyon-Juniper Woodland
Juniper/Pine Woodland
525
Juniper
Juniper/Pine Woodland
538
Pinyon-Juniper
Juniper/Pine Woodland
44
East Cascades Mesic Montane Mixed-Conifer Forest and Woodland
Mid-Elevation Mixed Conifer
46
Klamath-Siskiyou Lower Montane Serpentine Mixed Conifer Woodland
Mid-Elevation Mixed Conifer
47
Klamath-Siskiyou Upper Montane Serpentine Mixed Conifer Woodland
Mid-Elevation Mixed Conifer
49
Mediterranean California Mesic Mixed Conifer Forest and Woodland
Mid-Elevation Mixed Conifer
53
Mediterranean California Red Fir Forest
Mid-Elevation Mixed Conifer
56
North Pacific Dry Douglas-fir-(Madrone) Forest
Mid-Elevation Mixed Conifer
58
North Pacific Maritime Dry-Mesic Douglas-fir-Western Hemlock Forest
Mid-Elevation Mixed Conifer
63
Mediterranean California Mixed Evergreen Forest
Mid-Elevation Mixed Conifer
65
Northern Rocky Mountain Dry-Mesic Montane Mixed Conifer Forest
Mid-Elevation Mixed Conifer
67
Northern Rocky Mountain Mesic Montane Mixed Conifer Forest
Mid-Elevation Mixed Conifer
70
Southern Rocky Mountain Dry-Mesic Montane Mixed Conifer Forest and
Mid-Elevation Mixed Conifer
Woodland 80
Sierran-Intermontane Desert Western White Pine-White Fir Woodland
Mid-Elevation Mixed Conifer
82
North Pacific Dry-Mesic Silver Fir-Western Hemlock-Douglas-fir Forest
Mid-Elevation Mixed Conifer
89
North Pacific Lowland Mixed Hardwood-Conifer Forest and Woodland
Mid-Elevation Mixed Conifer
207
Southern Rocky Mountain Mesic Montane Mixed Conifer Forest and
Mid-Elevation Mixed Conifer
Woodland 315
Mediterranean California Dry-Mesic Mixed Conifer Forest and Woodland
Mid-Elevation Mixed Conifer
414
Rocky Mountain Montane Dry-Mesic Mixed Conifer Forest and
Mid-Elevation Mixed Conifer
Woodland 415
Rocky Mountain Montane Mesic Mixed Conifer Forest and Woodland
Mid-Elevation Mixed Conifer
516
Douglas-Fir
Mid-Elevation Mixed Conifer
518
Eastside Pine
Mid-Elevation Mixed Conifer
523
Jeffrey Pine
Mid-Elevation Mixed Conifer
526
Klamath Mixed Conifer
Mid-Elevation Mixed Conifer
550
White Fir
Mid-Elevation Mixed Conifer
107
Northern Rocky Mountain Montane-Foothill Deciduous Shrubland
Mountain Shrubland
318
Rocky Mountain Lower Montane-Foothill Shrubland
Mountain Shrubland
319
Inter-Mountain Basins Mountain Mahogany Woodland and Shrubland
Mountain Shrubland
320
Great Basin Semi-Desert Chaparral
Mountain Shrubland
420
Rocky Mountain Gambel Oak-Mixed Montane Shrubland
Mountain Shrubland
423
Mogollon Chaparral
Mountain Shrubland
434
Sonora-Mojave-Baja Semi-Desert Chaparral
Mountain Shrubland
509
Chamise-Redshank Chaparral
Mountain Shrubland
530
Mixed Chaparral
Mountain Shrubland
7.66
I n t e r m o u n t a i n We s t J o i n t Ve n t u re | C o n s e r v i n g H a b i t a t T h r o u g h P a r t n e r s h i p s | w w w. i w j v. o rg
APPENDIX D. CROSSWALK OF VEGETATIVE ASSOCIATIONS BY IWJV COVER TYPES VEGETATIVE ASSOCIATIONS VEGETATIVE ASSOCIATIONS 531 531 556 556 39 39 59 59 60 60 61 61 62 62 64 64 78 78 88 88 144 144 151 151 155 155 200 200 209 209 210 210 214 214 220 220 221 221 312 312 314 314 337 337 410 410 411 411 412 412 435 435 467 467 510 510 528 528 532 532 533 533 540 540 545 545 558 558 561 561 86 86
7.67
Montane Chaparral Montane Chaparral Marine Marine Northern Rocky Mountain Western Larch Savanna Northern Rocky Mountain Western Larch Savanna North Pacific Maritime Mesic Subalpine Parkland North Pacific Maritime Mesic Subalpine Parkland North Pacific Maritime Mesic-Wet Douglas-fir-Western Hemlock Forest North Pacific Maritime Mesic-Wet Douglas-fir-Western Hemlock Forest North Pacific Mountain Hemlock Forest North Pacific Mountain Hemlock Forest North Pacific Mesic Western Hemlock-Silver Fir Forest North Pacific Mesic Western Hemlock-Silver Fir Forest Northern California Mesic Subalpine Woodland Northern California Mesic Subalpine Woodland Rocky Mountain Poor-Site Lodgepole Pine Forest Rocky Mountain Poor-Site Lodgepole Pine Forest North Pacific Wooded Volcanic Flowage North Pacific Wooded Volcanic Flowage Introduced Upland Vegetation - Treed Introduced Upland Vegetation - Treed Recently burned forest Recently burned forest Harvested forest-tree regeneration Harvested forest-tree regeneration Rocky Mountain Bigtooth Maple Ravine Rocky Mountain Bigtooth Maple Ravine California Coastal Closed-Cone Conifer Forest and Woodland California Coastal Closed-Cone Conifer Forest and Woodland California Coastal Redwood Forest California Coastal Redwood Forest Mediterranean California Mesic Serpentine Woodland and Chaparral Mediterranean California Mesic Serpentine Woodland and Chaparral North Pacific Hypermaritime Sitka Spruce Forest North Pacific Hypermaritime Sitka Spruce Forest North Pacific Hypermaritime Western Red-cedar-Western Hemlock North Pacific Hypermaritime Western Red-cedar-Western Hemlock Forest Forest Rocky Mountain Subalpine-Montane Limber-Bristlecone Pine Woodland Rocky Mountain Subalpine-Montane Limber-Bristlecone Pine Woodland Rocky Mountain Lodgepole Pine Forest Rocky Mountain Lodgepole Pine Forest Sierra Nevada Subalpine Lodgepole Pine Forest and Woodland Sierra Nevada Subalpine Lodgepole Pine Forest and Woodland Rocky Mountain Bigtooth Maple Ravine Woodland Rocky Mountain Bigtooth Maple Ravine Woodland Inter-Mountain Basins Subalpine Limber-Bristlecone Pine Woodland Inter-Mountain Basins Subalpine Limber-Bristlecone Pine Woodland Northern Pacific Mesic Subalpine Woodland Northern Pacific Mesic Subalpine Woodland Mediterranean California Red Fir Forest and Woodland Mediterranean California Red Fir Forest and Woodland Northern Pacific Mesic Subalpine Woodland Northern Pacific Mesic Subalpine Woodland Closed-Cone Pine-Cypress Closed-Cone Pine-Cypress Lodgepole Pine Lodgepole Pine Montane Hardwood Montane Hardwood Montane Hardwood-Conifer Montane Hardwood-Conifer Red Fir Red Fir Subalpine Conifer Subalpine Conifer Redwood Redwood Unknown Conifer Type Unknown Conifer Type North Pacific Broadleaf Landslide Forest and Shrubland North Pacific Broadleaf Landslide Forest and Shrubland
IWJV COVER TYPES IWJV COVER TYPES Mountain Shrubland Mountain Shrubland Open Water Open Water Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Forest Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other
Forest Forest Forest Forest Forest Forest Forest Forest Forest Forest Forest Forest Forest Forest Forest Forest Forest Forest Forest Forest Forest Forest Forest Forest Forest Forest Forest Forest Forest Forest Forest Forest Shrub Shrub
I n t e r m o u n t a i n We s t J o i n t Ve n t u re | C o n s e r v i n g H a b i t a t T h r o u g h P a r t n e r s h i p s | w w w. i w j v. o rg
APPENDIX D. CROSSWALK OF VEGETATIVE ASSOCIATIONS BY IWJV COVER TYPES VEGETATIVE ASSOCIATIONS VEGETATIVE ASSOCIATIONS 93 93 99 99 100 100 103 103 104 104 106 106 108 108 109 109 132 132 142 142 145 145 153 153 156 156 203 203 219 219 225 225 407 407 424 424 425 425 451 451 455 455 456 456 458 458 459 459 469 469 470 470 471 471 475 475 477 477 479 479 501 501 514 514 524 524 551 551 552 552 553 553
7.68
North Pacific Dry and Mesic Alpine Dwarf-Shrubland, Fell-field and North Pacific Dry and Mesic Alpine Dwarf-Shrubland, Fell-field and Meadow Meadow North Pacific Avalanche Chute Shrubland North Pacific Avalanche Chute Shrubland North Pacific Montane Shrubland North Pacific Montane Shrubland California Montane Woodland and Chaparral California Montane Woodland and Chaparral California Xeric Serpentine Chaparral California Xeric Serpentine Chaparral Northern and Central California Dry-Mesic Chaparral Northern and Central California Dry-Mesic Chaparral Northern Rocky Mountain Subalpine Deciduous Shrubland Northern Rocky Mountain Subalpine Deciduous Shrubland Northern Rocky Mountain Avalanche Chute Shrubland Northern Rocky Mountain Avalanche Chute Shrubland Rocky Mountain Alpine Fell-Field Rocky Mountain Alpine Fell-Field Ruderal Upland - Old Field Ruderal Upland - Old Field Introduced Upland Vegetation - Shrub Introduced Upland Vegetation - Shrub Recently burned shrubland Recently burned shrubland Harvested forest-shrub regeneration Harvested forest-shrub regeneration Rocky Mountain Alpine Tundra/Fell-field/Dwarf-shrub Map Unit Rocky Mountain Alpine Tundra/Fell-field/Dwarf-shrub Map Unit North Pacific Hypermaritime Shrub and Herbaceous Headland North Pacific Hypermaritime Shrub and Herbaceous Headland Northern California Coastal Scrub Northern California Coastal Scrub North American Warm Desert Wash North American Warm Desert Wash Mojave Mid-Elevation Mixed Desert Scrub Mojave Mid-Elevation Mixed Desert Scrub Sonora-Mojave Creosotebush-White Bursage Desert Scrub Sonora-Mojave Creosotebush-White Bursage Desert Scrub Chihuahuan Creosotebush, Mixed Desert and Thorn Scrub Chihuahuan Creosotebush, Mixed Desert and Thorn Scrub Chihuahuan Stabilized Coppice Dune and Sand Flat Scrub Chihuahuan Stabilized Coppice Dune and Sand Flat Scrub Chihuahuan Succulent Desert Scrub Chihuahuan Succulent Desert Scrub Coahuilan Chaparral Coahuilan Chaparral Colorado Plateau Blackbrush-Mormon-tea Shrubland Colorado Plateau Blackbrush-Mormon-tea Shrubland Sonoran Mid-Elevation Desert Scrub Sonoran Mid-Elevation Desert Scrub Sonoran Paloverde-Mixed Cacti Desert Scrub Sonoran Paloverde-Mixed Cacti Desert Scrub Southern Colorado Plateau Sand Shrubland Southern Colorado Plateau Sand Shrubland Western Great Plains Mesquite Woodland and Shrubland Western Great Plains Mesquite Woodland and Shrubland Western Great Plains Sandhill Shrubland Western Great Plains Sandhill Shrubland Apacherian-Chihuahuan Mesquite Upland Scrub Apacherian-Chihuahuan Mesquite Upland Scrub Alkali Desert Scrub Alkali Desert Scrub Desert Scrub Desert Scrub Joshua Tree Joshua Tree Chamise-Redshank Chaparral Chamise-Redshank Chaparral Coastal Scrub Coastal Scrub Desert Succulent Shrub Desert Succulent Shrub
IWJV COVER TYPES IWJV COVER TYPES Other Shrub Other Shrub Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other Other
Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub Shrub
I n t e r m o u n t a i n We s t J o i n t Ve n t u re | C o n s e r v i n g H a b i t a t T h r o u g h P a r t n e r s h i p s | w w w. i w j v. o rg
APPENDIX D. CROSSWALK OF VEGETATIVE ASSOCIATIONS BY IWJV COVER TYPES VEGETATIVE ASSOCIATIONS
IWJV COVER TYPES
560
Unknown Shrub Type
Other Shrub
15
Temperate Pacific Intertidal Mudflat
Other Wetland
149
Introduced Riparian and Wetland Vegetation
Other Wetland
162
Northern Rocky Mountain Conifer Swamp
Other Wetland
168
North Pacific Bog and Fen
Other Wetland
172
North Pacific Shrub Swamp
Other Wetland
174
North Pacific Hardwood-Conifer Swamp
Other Wetland
175
Great Plains Prairie Pothole
Other Wetland
177
Western Great Plains Open Freshwater Depression Wetland
Other Wetland
178
Temperate Pacific Freshwater Aquatic Bed
Other Wetland
182
North Pacific Maritime Eelgrass Bed
Other Wetland
183
Columbia Plateau Vernal Pool
Other Wetland
184
Rocky Mountain Subalpine-Montane Fen
Other Wetland
187
Western Great Plains Closed Depression Wetland
Other Wetland
189
Western Great Plains Saline Depression Wetland
Other Wetland
193
Inter-Mountain Basins Alkaline Closed Depression
Other Wetland
204
Temperate Pacific Freshwater Mudflat
Other Wetland
217
Mediterranean California Serpentine Fen
Other Wetland
224
Northern California Claypan Vernal Pool
Other Wetland
228
Temperate Pacific Tidal Salt and Brackish Marsh
Other Wetland
310
Inter-Mountain Basins Playa
Other Wetland
335
Mediterranean California Subalpine-Montane Fen
Other Wetland
409
North American Warm Desert Playa
Other Wetland
554
Estuarine
Other Wetland
559
Saline Emergent Wetland
Other Wetland
222
North Pacific Intertidal Freshwater Wetland
Other Wetland
527
Lacustrine
Other Wetlands
3
Developed, Open Space
Other Habitats
4
Developed, Low Intensity
Other Habitats
5
Developed, Medium Intensity
Other Habitats
6
Developed, High Intensity
Other Habitats
8
Quarries, Mines and Gravel Pits
Other Habitats
9
Unconsolidated Shore
Other Habitats
14
Western Great Plains Badland
Other Habitats
16
North Pacific Alpine and Subalpine Bedrock and Scree
Other Habitats
18
Rocky Mountain Cliff, Canyon and Massive Bedrock
Other Habitats
19
North American Alpine Ice Field
Other Habitats
7.69
I n t e r m o u n t a i n We s t J o i n t Ve n t u re | C o n s e r v i n g H a b i t a t T h r o u g h P a r t n e r s h i p s | w w w. i w j v. o rg
APPENDIX D. CROSSWALK OF VEGETATIVE ASSOCIATIONS BY IWJV COVER TYPES VEGETATIVE ASSOCIATIONS
IWJV COVER TYPES
22
North Pacific Volcanic Rock and Cinder Land
Other Habitats
23
Western Great Plains Cliff and Outcrop
Other Habitats
25
North Pacific Montane Massive Bedrock, Cliff and Talus
Other Habitats
27
North Pacific Serpentine Barren
Other Habitats
31
Klamath-Siskiyou Cliff and Outcrop
Other Habitats
35
Columbia Plateau Ash and Tuff Badland
Other Habitats
41
Western Great Plains Dry Bur Oak Forest and Woodland
Other Habitats
92
Mediterranean California Alpine Fell-Field
Other Habitats
94
Rocky Mountain Alpine Dwarf-Shrubland
Other Habitats
133
Rocky Mountain Alpine Turf
Other Habitats
141
North Pacific Herbaceous Bald and Bluff
Other Habitats
146
Introduced Upland Vegetation â&#x20AC;&#x201C; Forbland
Other Habitats
157
Harvested forest-grass regeneration
Other Habitats
163
Western Great Plains Floodplain
Other Habitats
166
Northwestern Great Plains Floodplain
Other Habitats
205
Non-specific Disturbed
Other Habitats
206
Geysers and Hot Springs
Other Habitats
212
Harvested forest-herbaceous regeneration
Other Habitats
213
Mediterranean California Alpine Dry Tundra
Other Habitats
215
Mediterranean California Northern Coastal Dune
Other Habitats
216
Mediterranean California Serpentine Barrens
Other Habitats
218
North Pacific Coastal Cliff and Bluff
Other Habitats
223
North Pacific Maritime Coastal Sand Dune and Strand
Other Habitats
302
Rocky Mountain Alpine Bedrock and Scree
Other Habitats
303
Mediterranean California Alpine Bedrock and Scree
Other Habitats
304
Sierra Nevada Cliff and Canyon
Other Habitats
305
Inter-Mountain Basins Cliff and Canyon
Other Habitats
306
Inter-Mountain Basins Shale Badland
Other Habitats
308
Inter-Mountain Basins Volcanic Rock and Cinder Land
Other Habitats
401
Rocky Mountain Cliff and Canyon
Other Habitats
402
Colorado Plateau Mixed Bedrock Canyon and Tableland
Other Habitats
403
North American Warm Desert Bedrock Cliff and Outcrop
Other Habitats
404
North American Warm Desert Badland
Other Habitats
405
North American Warm Desert Active and Stabilized Dune
Other Habitats
406
North American Warm Desert Volcanic Rockland
Other Habitats
408
North American Warm Desert Pavement
Other Habitats
428
Rocky Mountain Dry Tundra
Other Habitats
7.70
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APPENDIX D. CROSSWALK OF VEGETATIVE ASSOCIATIONS BY IWJV COVER TYPES VEGETATIVE ASSOCIATIONS
IWJV COVER TYPES
429
Rocky Mountain Subalpine Mesic Meadow
Other Habitats
438
Developed, Open Space - Low Intensity
Other Habitats
439
Developed, Medium - High Intensity
Other Habitats
440
Barren Lands, Non-specific
Other Habitats
442
Disturbed, Non-specific
Other Habitats
443
Recently Burned
Other Habitats
444
Recently Mined or Quarried
Other Habitats
446
Invasive Perennial Grassland
Other Habitats
448
Invasive Annual and Biennial Forbland
Other Habitats
460
Disturbed, Oil well
Other Habitats
461
Invasive Perennial Forbland
Other Habitats
468
Recently Logged Areas
Other Habitats
502
Alpine-Dwarf Shrub
Other Habitats
505
Barren
Other Habitats
546
Urban
Other Habitats
555
Eucalyptus
Other Habitats
557
Palm Oasis
Other Habitats
466
Madrean Upper Montane Conifer-Oak Forest and Woodland
Pine-Oak Woodland
38
North Pacific Oak Woodland
Pine-Oak Woodlands
50
Mediterranean California Mixed Oak Woodland
Pine-Oak Woodlands
51
Mediterranean California Lower Montane Black Oak-Conifer Forest and
Pine-Oak Woodlands
Woodland 83
East Cascades Oak-Ponderosa Pine Forest and Woodland
110
California Lower Montane Blue Oak-Foothill Pine Woodland and Savanna Pine-Oak Woodlands
462
Madrean Encinal
Pine-Oak Woodlands
464
Madrean Pine-Oak Forest and Woodland
Pine-Oak Woodlands
507
Blue Oak Woodland
Pine-Oak Woodlands
508
Blue Oak-Foothill Pine
Pine-Oak Woodlands
511
Coastal Oak Woodland
Pine-Oak Woodlands
547
Valley Oak Woodland
Pine-Oak Woodlands
601
Recently Burned Agriculture
Recently Burned Agriculture
613
Recently Burned Aspen
Recently Burned Aspen
602
Recently Burned Grassland
Recently Burned Grassland
605
Recently Burned Greasewood/Saltbush
Recently Burned Greasewood/Saltbush
610
Recently Burned Juniper/Pine Woodlands
Recently Burned Juniper/Pine Woodlands
611
Recently Burned Mid-Elevation Mixed Conifer
Recently Burned Mid-Elevation Mixed Conifer
603
Recently Burned Mountain Shrubland
Recently Burned Mountain Shrubland
7.71
Pine-Oak Woodlands
I n t e r m o u n t a i n We s t J o i n t Ve n t u re | C o n s e r v i n g H a b i t a t T h r o u g h P a r t n e r s h i p s | w w w. i w j v. o rg
APPENDIX D. CROSSWALK OF VEGETATIVE ASSOCIATIONS BY IWJV COVER TYPES VEGETATIVE ASSOCIATIONS
IWJV COVER TYPES
607
Recently Burned Other Forest
Recently Burned Other Forest
604
Recently Burned Other Shrub
Recently Burned Other Shrub
616
Recently Burned Other Wetland
Recently Burned Other Wetland
620
Recently Burned Other/Unvegetated
Recently Burned Other/Unvegetated
612
Recently Burned Spruce-Fir
Recently Burned Spruce-Fir
615
Recently Burned Wet Meadow/Marsh
Recently Burned Wet Meadow/Marsh
608
Recently Burned Dry Ponderosa/Fir Forest
Recently Burned Dry Ponderosa/Fir Forest
609
Recently Burned Pine Oak Woodlands
Recently Burned Pine Oak Woodlands
618
Recently Burned Riparian Herbaceous
Recently Burned Riparian Herbaceous
617
Recently Burned Riparian Woodland
Recently Burned Riparian Woodland
606
Recently Burned Sagebrush Steppe
Recently Burned Sagebrush Steppe
474
Western Great Plains Floodplain Herbaceous Wetland
Riparian Herbaceous
329
Rocky Mountain Subalpine-Montane Riparian Shrubland
Riparian Shrubland
87
Western Great Plains Wooded Draw and Ravine
Riparian Woodland
160
North Pacific Lowland Riparian Forest and Shrubland
Riparian Woodland
161
North Pacific Montane Riparian Woodland and Shrubland
Riparian Woodland
164
Northern Rocky Mountain Lower Montane Riparian Woodland and
Riparian Woodland
Shrubland 170
Columbia Basin Foothill Riparian Woodland and Shrubland
Riparian Woodland
195
Mediterranean California Serpentine Foothill and Lower Montane
Riparian Woodland
Riparian Woodland and Seep 196
Northwestern Great Plains Riparian
Riparian Woodland
198
Western Great Plains Riparian Woodland and Shrubland
Riparian Woodland
330
Rocky Mountain Subalpine-Montane Riparian Woodland
Riparian Woodland
331
Rocky Mountain Lower Montane Riparian Woodland and Shrubland
Riparian Woodland
336
Great Basin Foothill and Lower Montane Riparian Woodland and
Riparian Woodland
Shrubland 430
North American Warm Desert Lower Montane Riparian Woodland and
Riparian Woodland
Shrubland 431
North American Warm Desert Riparian Woodland and Shrubland
Riparian Woodland
620
Recently Burned Other/Unvegetated
Recently Burned Other/Unvegetated
432
North American Warm Desert Riparian Mesquite Bosque
Riparian Woodland
445
Invasive Southwest Riparian Woodland and Shrubland
Riparian Woodland
513
Desert Riparian
Riparian Woodland
534
Montane Riparian
Riparian Woodland
542
Riverine
Riparian Woodland
548
Valley-Foothill Riparian
Riparian Woodland
700
Roads
Roads
7.72
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APPENDIX D. CROSSWALK OF VEGETATIVE ASSOCIATIONS BY IWJV COVER TYPES VEGETATIVE ASSOCIATIONS
IWJV COVER TYPES
90
Columbia Plateau Scabland Shrubland
Sagebrush Steppe
95
Wyoming Basins Dwarf Sagebrush Shrubland and Steppe
Sagebrush Steppe
115
Columbia Plateau Steppe and Grassland
Sagebrush Steppe
116
Columbia Plateau Low Sagebrush Steppe
Sagebrush Steppe
95
Wyoming Basins Dwarf Sagebrush Shrubland and Steppe
Sagebrush Steppe
115
Columbia Plateau Steppe and Grassland
Sagebrush Steppe
116
Columbia Plateau Low Sagebrush Steppe
Sagebrush Steppe
321
Inter-Mountain Basins Big Sagebrush Shrubland
Sagebrush Steppe
322
Great Basin Xeric Mixed Sagebrush Shrubland
Sagebrush Steppe
324
Inter-Mountain Basins Montane Sagebrush Steppe
Sagebrush Steppe
326
Inter-Mountain Basins Big Sagebrush Steppe
Sagebrush Steppe
422
Colorado Plateau Mixed Low Sagebrush Shrubland
Sagebrush Steppe
437
Wyoming Basins Low Sagebrush Shrubland
Sagebrush Steppe
506
Bitterbrush
Sagebrush Steppe
529
Low Sage
Sagebrush Steppe
543
Sagebrush
Sagebrush Steppe
54
Mediterranean California Subalpine Woodland
Spruce-fir
66
Northern Rocky Mountain Subalpine Woodland and Parkland
Spruce-fir
74
Rocky Mountain Subalpine Mesic-Wet Spruce-Fir Forest and Woodland
Spruce-fir
313
Rocky Mountain Subalpine Dry-Mesic Spruce-Fir Forest and Woodland
Spruce-fir
413
Rocky Mountain Subalpine Mesic Spruce-Fir Forest and Woodland
Spruce-fir
301
Open Water
Water
126
Mediterranean California Subalpine Meadow
Wet Meadow/Marsh
134
Rocky Mountain Subalpine-Montane Mesic Meadow
Wet Meadow/Marsh
190
Temperate Pacific Freshwater Emergent Marsh
Wet Meadow/Marsh
191
Temperate Pacific Subalpine-Montane Wet Meadow
Wet Meadow/Marsh
197
Inter-Mountain Basins Interdunal Swale Wetland
Wet Meadow/Marsh
226
Willamette Valley Wet Prairie
Wet Meadow/Marsh
333
North American Arid West Emergent Marsh
Wet Meadow/Marsh
334
Rocky Mountain Alpine-Montane Wet Meadow
Wet Meadow/Marsh
433
Temperate Pacific Montane Wet Meadow
Wet Meadow/Marsh
519
Freshwater Emergent Wetland
Wet Meadow/Marsh
549
Wet Meadow
Wet Meadow/Marsh
7.73
I n t e r m o u n t a i n We s t J o i n t Ve n t u re | C o n s e r v i n g H a b i t a t T h r o u g h P a r t n e r s h i p s | w w w. i w j v. o rg
APPENDIX E. OVERLAPS BETWEEN MAPPED RANGES OF IWJV FOCAL SPECIES AND BCR/STATE POLYGONS STATES
BCR
BTPI
BETH
BRSP
FEHA
FLOW
GRWA
AZ
16
A
A
P
P
P
AZ
33
A
A
P
A
AZ
34
A
A
P
P
AZ
35
A
A
CA
5
A
P
CA
9
P
P
CA
15
P
CA
32
A
CA
33
P
CO
10
P
CO
16
P
ID
P
GRSP
GRFL
GRVI
LEWO
A
P
A
P
P
P
A
P
P
A
P
P
P
A
P
P
P
P
A
A
P
A
A
A
P A
P
P
P
P
A
P
A
P
P
A
P
A
P
P
A P
P
A
A
P
P
P
P
9
A
P
P
P
ID
10
A
P
P
P
ID
16
A
A
P
P
MT
10
A
P
P
P
MT
17
A
P
NM
16
P
P
P
P
P
A
NM
34
A
P
P
P
A
NM
35
A
P
P
P
NV
9
P
P
P
P
NV
15
A
NV
16
A
A
NV
33
P
P
OR
5
A
P
OR
9
P
P
OR
10
P
UT
9
P
UT
10
UT
16
P
UT
33
A
WA
5
A
A
WA
9
P
A
WA
10
WY
P
P
A
A P
P
P
P
P
P
P
A
P
P
P
A
P
P
P
A
A
*
P
P
A
P
A
A
A
A
P
A
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
A
P
A
A
A
A
A P
P
A
A
P
A
P
A
A P
P
A
P
P
A
P
P
P
P
P
P
P
A
P
P
A
A
P
A
A
P
P
A
P
P
A
A
A
P
PIJA
P
P
P
OSFL
P
LBCU
P
P
A
A
A
A
P
P
P
P
P
P
A
P
P
P
A
P
P
P
P
P
A
P
P
P
P
P
A
P
P
A
A
A
A
P
P
P
P
P
P
A
P
P
P
A
A
A
A
A P
P
P
A
P
P
P
P
P
P
A
A
P
P
P
P
A
P
A
9
A
A
A
A
A
WY
10
A
P
P
P
P
P
P
P
P
WY
16
A
A
P
P
P
P
P
P
P
WY
18
A
A
P
P
P
P
A = A l l o f p o l y g o n is with in spe c ie s’ bre e din g r a n ge; P = part A n a s t e r i s k i n d i c a te s kn own r a n ge ou tside of th e Nature Serve mapped rang e G re e n = o u t s i d e t h e ma ppe d r a n ge , bu t PI F h a d a po pul ati o n esti mate.
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APPENDIX E. OVERLAPS BETWEEN MAPPED RANGES OF IWJV FOCAL SPECIES AND BCR/STATE POLYGONS STATES
BCR
RNSA
AZ
16
AZ
RUHU
SAGS
SATH
SWHA
VIWA
A
P
P
A
P
33
A
P
P
A
AZ
34
P
P
A
AZ
35
A
CA
5
CA
9
CA
WHWO
WIFL
A Spp
P Spp
*
Tot Spp
A
8
9
0
17
A
6
9
1
16
P
A
8
8
2
18
A
A
8
2
4
14
A
A
5
5
3
13
P
A
3
14
0
17
P
P
A
P
P
A
15
P
P
A
A
A
6
7
2
15
CA
32
P
P
A
A
A
7
3
2
12
CA
33
P
P
P
A
P
P
A
4
12
0
16
CO
10
A
P
A
A
P
A
7
7
0
14
CO
16
A
P
P
A
P
A
3
15
1
19
ID
9
P
P
P
P
A
P
P
A
4
13
0
17
ID
10
P
P
P
P
A
P
A
4
11
0
15
ID
16
A
A
A
A
A
9
3
6
18
MT
10
A
*
P
A
A
5
8
2
15
MT
17
A
A
A
A
10
1
0
11
NM
16
P
P
A
P
A
4
14
1
19
NM
34
P
P
A
P
A
4
12
0
16
NM
35
P
A
P
A
3
12
1
16
NV
9
P
NV
15
NV
16
A
NV
33
P
OR
5
OR
9
P
P
OR
10
P
A
UT
9
UT
P
P
P
P
P
P
A
P
P
A
3
18
0
21
A
P
A
P
A
A
11
2
2
15
P
A
A
11
1
3
15
P
A
A
2
15
0
17
A
A
P
A
6
6
1
13
P
A
A
P
A
4
13
0
17
P
P
A
P
A
5
12
0
17
A
A
A
A
P
A
8
10
0
18
10
A
A
A
A
P
A
11
4
0
15
UT
16
A
A
A
A
P
A
7
12
0
19
UT
33
A
A
A
A
P
A
13
3
0
16
WA
5
A
A
P
A
8
4
0
12
WA
9
P
A
P
A
P
A
5
11
0
16
WA
10
A
A
P
A
P
A
7
7
0
14
WY
9
A
A
A
A
9
0
4
13
WY
10
P
P
A
A
A
4
12
0
16
WY
16
P
P
A
A
A
5
9
1
15
WY
17
P
P
A
A
5
8
1
14
WY
18
P
A
A
4
6
0
10
7.75
P
P
P A
A
P
P
P
P
P
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APPENDIX F. POPULATION TRENDS OF FOCAL LANDBIRD SPECIES, IWJV STATES, 1967–2007 Statistically significant trends are in bold, and color (light blue for increases, red for decreases). Values are annual rates of change as indicated by Breeding Bird Survey data. SPECIES
AZ
CA
CO
ID
MT
NV
NM
OR
UT
WA
WY
BTPI
-0.7
-0.5
8.7
-
-
-
-9.0
-0.7
-
-0.5
-
BETH
-3.2
14.3
-
-
-
-
-5.5
-
3.8
-
-
BRSP
-5.1
-2.7
-3.0
-2.5
-1.2
-2.1
0.3
-2.3
-0.9
-0.4
-0.7
FEHA
-
-
1.1
-1.6
5.8
8.2
14.1
1.4
-1.9
-8.2
-0.3
FLOW
-
-
-
-
-
-
-
-
-
-
-
GRWA
-2.2
-
8.2
-
-
-
-2.6
-
0.4
-
-
GRSP
-
1.6
-4.6
-5.0
-2.8
-
-0.5
-0.1
36.7
-3.3
-2.4
GRFL
2.6
3.3
-0.9
18.2
-
6.0
8.1
1.6
4.7
-
-
GRVI
3.3
-
-0.8
-
-
-
5.9
-
-5.1
-
-
LEWO
67.8
-2.1
0.1
3.8
-3.6
-
-9.6
-5.2
-
-8.1
-
LBCU
-
22.8
-6.0
2.1
-0.7
-3.1
5.3
8.2
-0.4
-3.6
7.9
OSFL
7.6
-3.5
-0.2
-3.0
-0.1
-
2.0
-3.7
-6.1
-2.2
2.2
PIJA
-5.5
-7.7
-4.8
-
-2.8
-9.5
-4.2
1.8
-1.5
-
0.7
2.7
-0.9
5.7
5.2
5.9
-
5.0
2.2
3.9
4.3
15.9
RUHU
-
11.2
-
0.9
11.2
-
-
-3.7
-
-1.4
120
SAGS
2.5
-1.4
1.1
-3.2
-
1.6
-2.9
-1.9
-0.5
9.2
0.8
SATH
-0.5
0.7
0.6
-1.7
-0.7
-1.7
-6.8
-1.1
-3.1
2.8
1.4
SWHA
4.1
13.7
-2.1
3.5
0.4
3.2
3.2
-0.5
2.9
0.8
-1.2
VIWA
-2.1
-
-2.5
-
-
-
-0.3
-
1.6
-
-
-
1.9
-
-
-
-
-
1.9
-
4.0
-
14.9
30.9
0.9
-1.5
-0.6
-
-5.0
-4.9
1.5
-1.1
0.2
(RNSA)
WHWO (WIFL) In c re a s e s De c re a s e
Species Codes:
LBCU: Long-billed Curlew
BTPI: Band-tailed Pigeon
OSFL: Olive-sided Flycatcher
BETH: Bendire’s Thrasher
PIJA: Pinyon Jay
BRSP: Brewer’s Sparrow
RNSA: Red-naped Sapsucker (Sapsucker, spp.)
FEHA: Ferruginous Hawk
RUHU: Rufous Hummingbird
FLOW: Flammulated Owl
SAGS: Sage Sparrow
GRWA: Grace’s Warbler
SATH: Sage Thrasher
GRSP: Grasshopper Sparrow
SWHA: Swainson’s Hawk
GRFL: Gray Flycatcher
VIWA: Virginia’s Warbler
GRVI: Gray Vireo
WHWO: White-headed Woodpecker
LEWO: Lewis’s Woodpecker
WIFL: Willow(/Alder) Flycatcher
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APPENDIX G. PRIORITY ACTIONS FOR ADDITIONAL HABITATS AND FOCAL SPECIES IN BCRS 9, 10 AND 16 BCR 9 Habitat: Dry Ponderosa Pine/Fir Forest (4,120,962 acres)
BCR 9 Habitat: Aspen (1,183,363 acres)
Manage stands dominated by ponderosa pine forest to restore historic characteristics of open condition with mature trees and high snag densities. Retain old growth stands, retain and recruit large-diameter snags, and thin dense stands in order to restore the role of fire.
Highest Priority Species:
Highest Priority Species:
• Encroachment by conifers
• Lewis’s Woodpecker (increase 10%)
• Clones dying due to grazing by wild ungulates and livestock
• White-headed Woodpecker (maintain) • Flammulated Owl (maintain) • Gray Flycatcher (maintain)
Major Threats/Issues: • Out-of-balance age distribution and structure • Residential development of lower elevation forests • Disrupted fire regime, leading to stand replacement fires • “Clean” forestry that removes dead and dying trees
Primary Conservation Actions Needed: • Identify and protect largest remaining blocks • Work with land trusts to target key habitat areas for protection • Provide outreach and incentives for snag management (BMPs) • Clarify the unique habitat features of mature pine and snags in light of extensive mortality in lodgepole pine
• Red-naped Sapsucker (maintain) • Flammulated Owl (maintain)
Major Threats/Issues:
• Poorly mapped and therefore underrepresented in spatial data sets
Primary Conservation Actions Needed: • Regeneration of clones through removal of encroaching conifers, prescribed fire • Strive to build multi-age stands of >40ac, with 20% mature to overmature (decadent, w/snags) • Initiate multistate conservation effort targeting private landowners • Build more reliable spatial layers to be used in targeted conservation efforts
Highest Priority Geographies (as refined by HABPOPS model runs): • Selected BHCAs from previous implementation planning process (partner buy-in; subset by habitat) • Sites as indicated by HABPOPS model
• Attain and maintain 25% of stands in old growth condition
BCR 9 Habitat: Riparian Woodlands (1,268,980 acres)
Highest Priority Geographies (as refined by HABPOPS model runs):
Protect high quality reaches with structural diversity, and restore degraded reaches. Work to eliminate or reduce invasion by tamarisk and Russian olive. Re-establish or emulate natural flow regimes to encourage recruitment of woody vegetation and channel diversity.
• Selected BHCAs from previous implementation planning process (partner buy-in; subset by habitat) • Eastern Oregon, Washington; ne California, nw Nevada • Sites as indicated by HABPOPS model
Highest Priority Species: • Lewis’s Woodpecker (increase 10%) • Willow Flycatcher (increase 50%) • Rufous Hummingbird (increase 100%)
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APPENDIX G. PRIORITY ACTIONS FOR ADDITIONAL HABITATS AND FOCAL SPECIES IN BCRS 9, 10 AND 16 Major Threats/Issues: • Altered flow regimes • Overgrazing and resultant lack of woody structure/ understory • Clearing/removal of overstory • Exotics: particularly Russian olive and tamarisk
Primary Conservation Actions Needed: • Protect and enhance existing stands, with an objective of no net loss
Highest Priority Geographies (as refined by HABPOPS model runs): • Selected BHCAs from previous implementation planning process (partner buy-in; subset by habitat) • Sites as indicated by HABPOPS model
BCR 9 Habitat: Pine-Oak Woodlands (551,490 acres) Highest Priority Species: • Band-tailed Pigeon (increase 100%)
• Maintain and expand largest blocks of riparian woodland
• Flammulated Owl (maintain)
• Restore dynamic nature of systems through modified flows (watershed groups, irrigators, dam operations)
Major Threats/Issues:
• Work to maximize efficient and targeted delivery of WRP, EQIP, WHIP, and other Farm Bill programs.
• Altered fire regimes combined with encroachment by conifers
Highest Priority Geographies (as refined by HABPOPS model runs):
Primary Conservation Actions Needed:
• Selected BHCAs from previous implementation planning process (partner buy-in; subset by habitat) • Sites as indicated by HABPOPS model
BCR 9 Habitat: Pinyon-Juniper Woodlands (14,497,692 acres) Retain large tracts of mature pinyon-juniper and work to ensure a supply of seed-producing pinyon.
Highest Priority Species: • Gray Flycatcher (maintain) • Pinyon Jay (increase 100%)
Major Threats/Issues: • Fragmentation: energy exploration and development • Imbalance in distribution of age classes and stucture: too dense, or canopy removed altogether • Need to optimize management to balance with the needs of sagebrush birds • Overgrazed understory, invasive exotics
• Loss of oak habitat due to residential development
• Restore the role of fire, with targeted removal of encroaching conifers
Highest Priority Geographies (as refined by HABPOPS model runs): • Selected BHCAs from previous implementation planning process (partner buy-in; subset by habitat) • Sites as indicated by HABPOPS model
BCR 9 Habitat: Mountain Shrubland (1,479,017 acres) Highest Priority Species: • Virginia’s Warbler (increase 10%)
Major Threats/Issues: • Fire, conversion and fragmentation due to residential development
Primary Conservation Actions Needed: • Identify, protect and enhance largest blocks of remaining habitat
Primary Conservation Actions Needed:
Highest Priority Geographies (as refined by HABPOPS model runs):
• Maintain current distribution of pinyon anda limber pine stands
• Selected BHCAs from previous implementation planning process (partner buy-in; subset by habitat)
• Manage for better distribution of age classes by protecting older stands, thinning, targeted burning
• Sites as indicated by HABPOPS model
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APPENDIX G. PRIORITY ACTIONS FOR ADDITIONAL HABITATS AND FOCAL SPECIES IN BCRS 9, 10 AND 16 BCR 9 Habitat: Mixed Coniferous Forest (4,797,373 acres)
• Provide outreach and incentives for snag management (BMPs)
BCR 9 Habitat: Spruce-Fir Forest (1,708,623 acres)
• Clarify the unique habitat features of mature pine and snags in light of extensive mortality in lodgepole pine
Highest Priority Species: • Olive-sided Flycatcher (increase 100%)
Major Threats/Issues: • Salvage logging in recently-burned forests
• Attain and maintain 25% of stands in old growth condition
Highest Priority Geographies (as refined by HABPOPS model runs):
• Even-aged timber management
• Selected BHCAs from previous implementation planning process (partner buy-in; subset by habitat)
• Some managed areas might be population sinks
• Sites as indicated by HABPOPS model
Primary Conservation Actions Needed:
• Bitterroot Valley, MT; Blue Mountains, OR and WA; northern Idaho
• Maintain snags and emphasize shrub growth in managed forest landscapes • Participate in forest plan revision processes to incoporate species needs
BCR 10 Habitat: Aspen (1,387,711 acres) Highest Priority Species:
• Primarily a public land issue
• Red-naped Sapsucker (maintain)
Highest Priority Geographies (as refined by HABPOPS model runs):
• Flammulated Owl (maintain)
• Selected BHCAs from previous implementation planning process (partner buy-in; subset by habitat)
Major Threats/Issues: • Encroachment by conifers
• Sites as indicated by HABPOPS model
• Clones dying due to grazing by wild ungulates and livestock
BCR 10 Habitat: Dry Ponderosa Pine/Fir Forest (6,856,212 acres)
• Poorly mapped and therefore underrepresented in spatial data sets
Highest Priority Species:
Primary Conservation Actions Needed:
• Lewis’s Woodpecker (increase 10%)
• Regeneration of clones through removal of encroaching conifers, prescribed fire
• Flammulated Owl (maintain) • White-headed Woodpecker (maintain)
Major Threats/Issues: • Out-of-balance age distribution and structure • Residential development of lower elevation forests • Disrupted fire regime, leading to stand replacement fires • “Clean” forestry that removes dead and dying trees
Primary Conservation Actions Needed:
• Strive to build multi-age stands of >40ac, with 20% mature to overmature (decadent, w/snags) • Initiate multistate conservation effort targeting private landowners • Build more reliable spatial layers to be used in targeted conservation efforts
Highest Priority Geographies (as refined by HABPOPS model runs):
• Identify and protect largest remaining blocks
• Selected BHCAs from previous implementation planning process (partner buy-in; subset by habitat)
• Work with land trusts to target key habitat areas for protection
• Sites as indicated by HABPOPS model
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APPENDIX G. PRIORITY ACTIONS FOR ADDITIONAL HABITATS AND FOCAL SPECIES IN BCRS 9, 10 AND 16 BCR 10 Habitat: Riparian Woodlands (1,987,875 acres)
• Maintain current distribution of pinyon and limber pine stands
Highest Priority Species:
• Manage for better distribution of age classes by protecting older stands, thinning, targeted burning
• Lewis’s Woodpecker (increase 10%) • Willow Flycatcher (increase 50%) • Rufous Hummingbird (increase 100%)
Highest Priority Geographies (as refined by HABPOPS model runs):
Major Threats/Issues:
• Selected BHCAs from previous implementation planning process (partner buy-in; subset by habitat)
• Altered flow regimes
• Sites as indicated by HABPOPS model
• Overgrazing and resultant lack of woody structure/ understory
• Wyoming, eastern Oregon
• Clearing/removal of overstory • Exotics: particularly Russian olive
BCR 10 Habitat: Spruce-Fir Forest (11,772,860 acres) Highest Priority Species:
Primary Conservation Actions Needed:
• Olive-sided Flycatcher (increase 100%)
• Protect and enhance existing stands, with an objective of no net loss
• (Black Swift – maintain)
• Maintain and expand largest blocks of riparian woodland • Restore dynamic nature of systems through modified flows (watershed groups, irrigators, dam operations) • Work to maximize efficient and targeted delivery of WRP, EQIP, WHIP, and other Farm Bill programs.
Highest Priority Geographies (as refined by HABPOPS model runs): • Selected BHCAs from previous implementation planning process (partner buy-in; subset by habitat) • Sites as indicated by HABPOPS
BCR 10 Habitat: Pinyon-Juniper Woodlands (2,687,612 acres) Highest Priority Species: • Pinyon Jay (increase 100%)
Major Threats/Issues: • Fragmentation: energy exploration and development • Imbalance in distribution of age classes and stucture: too dense, or canopy removed altogether • Need to optimize management to balance with the needs of sagebrush birds
Major Threats/Issues: • Salvage logging in recently-burned forests • Even-aged timber management • Some managed areas might be population sinks • Black Swifts: climate change/dewatering of high elevation sites
Primary Conservation Actions Needed: • Maintain snags and emphasize shrub growth in managed forest landscapes • Participate in forest plan revision processes to incoporate species needs • Primarily a public land issue
Highest Priority Geographies (as refined by HABPOPS model runs): • Selected BHCAs from previous implementation planning process (partner buy-in; subset by habitat) • Sites as indicated by HABPOPS model • Known Black Swift nesting colonies: monitor and protect as necessary
• Overgrazed understory, invasive exotics
Primary Conservation Actions Needed:
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APPENDIX G. PRIORITY ACTIONS FOR ADDITIONAL HABITATS AND FOCAL SPECIES IN BCRS 9, 10 AND 16 BCR 16 Habitat: Dry Ponderosa Pine/Fir Forest (6,870,642 acres)
• Poorly mapped and therefore underrepresented in spatial data sets
Highest Priority Species:
Primary Conservation Actions Needed:
• Lewis’s Woodpecker (increase 10%)
• Regeneration of clones through removal of encroaching conifers, prescribed fire
• Flammulated Owl (maintain) • Grace’s Warbler (increase 50%) • Band-tailed Pigeon (increase 100%)
Major Threats/Issues: • Out-of-balance age distribution and structure • Residential development of lower elevation forests • Disrupted fire regime, leading to stand replacement fires • “Clean” forestry that removes dead and dying trees
• Strive to build multi-age stands of >40ac, with 20% mature to overmature (decadent, w/snags) • Initiate multistate conservation effort targeting private landowners • Build more reliable spatial layers to be used in targeted conservation efforts
Highest Priority Geographies (as refined by HABPOPS model runs):
Primary Conservation Actions Needed:
• Selected BHCAs from previous implementation planning process (partner buy-in; subset by habitat)
• Identify and protect largest remaining blocks
• Sites as indicated by HABPOPS model
• Work with land trusts to target key habitat areas for protection
• Western Colorado, northeastern Utah
• Provide outreach and incentives for snag management (BMPs)
BCR 16 Habitat: Riparian Woodlands (871,243 acres)
• Clarify the unique habitat features of mature pine and snags in light of extensive mortality in lodgepole pine
Highest Priority Species:
• Attain and maintain 25% of stands in old growth condition
• Willow Flycatcher (increase 50%)
Highest Priority Geographies (as refined by HABPOPS model runs):
• Altered flow regimes
• Selected BHCAs from previous implementation planning process (partner buy-in; subset by habitat) • Sites as indicated by HABPOPS model
BCR 16 Habitat: Aspen (5,584,289 acres) Highest Priority Species: • Red-naped Sapsucker (maintain) • Flammulated Owl (maintain)
Major Threats/Issues: • Encroachment by conifers • Clones dying due to grazing by wild ungulates and livestock
7.81
• Lewis’s Woodpecker (increase 10%)
Major Threats/Issues: • Overgrazing and resultant lack of woody structure/ understory • Clearing/removal of overstory • Exotics: particularly Russian olive
Primary Conservation Actions Needed: • Protect and enhance existing stands, with an objective of no net loss • Maintain and expand largest blocks of riparian woodland • Restore dynamic nature of systems through modified flows (watershed groups, irrigators, dam operations) • Work to maximize efficient and targeted delivery of WRP, EQIP, WHIP, and other Farm Bill programs.
I n t e r m o u n t a i n We s t J o i n t Ve n t u re | C o n s e r v i n g H a b i t a t T h r o u g h P a r t n e r s h i p s | w w w. i w j v. o rg
APPENDIX G. PRIORITY ACTIONS FOR ADDITIONAL HABITATS AND FOCAL SPECIES IN BCRS 9, 10 AND 16 Highest Priority Geographies (as refined by HABPOPS model runs): • Selected BHCAs from previous implementation planning process (partner buy-in; subset by habitat)
Primary Conservation Actions Needed: • Identify, protect and enhance largest blocks of remaining habitat
• Sites as indicated by HABPOPS
Highest Priority Geographies (as refined by HABPOPS model runs):
BCR 16 Habitat: Pinyon-Juniper Woodlands (28,553,429 acres)
• Selected BHCAs from previous implementation planning process (partner buy-in; subset by habitat)
Highest Priority Species:
• Sites as indicated by HABPOPS model
• Gray Vireo (maintain)
BCR 16 Habitat: Spruce-Fir Forest (6,147,771 acres)
• Gray Flycatcher (maintain)
Highest Priority Species:
• Pinyon Jay (increase 100%)
Major Threats/Issues: • Fragmentation: energy exploration and development
• Olive-sided Flycatcher (increase 100%) • (Black Swift – maintain)
• Imbalance in distribution of age classes and stucture: too dense, or canopy removed altogether
Major Threats/Issues:
• Need to optimize management to balance with the needs of sagebrush birds
• Even-aged timber management
• Overgrazed understory, invasive exotics
Primary Conservation Actions Needed: • Maintain current distribution of pinyon and limber pine stands • Manage for better distribution of age classes by protecting older stands, thinning, targeted burning
• Salvage logging in recently-burned forests • Some managed areas might be population sinks • Black Swifts: climate change/dewatering of high elevation sites
Primary Conservation Actions Needed: • Maintain snags and emphasize shrub growth in managed forest landscapes • Participate in forest plan revision processes to incoporate species needs
Highest Priority Geographies (as refined by HABPOPS model runs):
• Primarily a public land issue
• Selected BHCAs from previous implementation planning process (partner buy-in; subset by habitat)
• recreational pressure
• Sites as indicated by HABPOPS model • Primarily in Colorado, Utah, New Mexico
BCR 16 Habitat: Mountain Shrubland (5,003,882 acres) Highest Priority Species: • Virginia’s Warbler (increase 10%)
• Protect known swift nesting colonies from excessive
Highest Priority Geographies (as refined by HABPOPS model runs): • Selected BHCAs from previous implementation planning process (partner buy-in; subset by habitat) • Sites as indicated by HABPOPS model • Known Black Swift nesting colonies: monitor and protect as necessary
Major Threats/Issues: • Fire, conversion and fragmentation due to residential development
7.82
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APPENDIX H. BBS TREND MAPS FOR IWJV FOCAL LANDBIRD SPECIES
Percent Change per Year
Percent Change per Year
Less than -1.5 -1.5 to -0.25 > -0.25 to 0.25 > 0.25 to +1.5 Greater than +1.5
Less than -1.5 -1.5 to -0.25 > -0.25 to 0.25 > 0.25 to +1.5 Greater than +1.5
BAND-TAILED PIGEON
BENDIRE’S THRASHER
Percent Change per Year
Percent Change per Year
Less than -1.5 -1.5 to -0.25 > -0.25 to 0.25 > 0.25 to +1.5 Greater than +1.5
Less than -1.5 -1.5 to -0.25 > -0.25 to 0.25 > 0.25 to +1.5 Greater than +1.5
BREWER’S SPARROW
GRASSHOPPER SPARROW
7.83
FERRUGINOUS HAWK
Percent Change per Year
Percent Change per Year
Less than -1.5 -1.5 to -0.25 > -0.25 to 0.25 > 0.25 to +1.5 Greater than +1.5
Less than -1.5 -1.5 to -0.25 > -0.25 to 0.25 > 0.25 to +1.5 Greater than +1.5
GRAY FLYCATCHER
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APPENDIX H. BBS TREND MAPS FOR IWJV FOCAL LANDBIRD SPECIES
Percent Change per Year
Percent Change per Year
Less than -1.5 -1.5 to -0.25 > -0.25 to 0.25 > 0.25 to +1.5 Greater than +1.5
Less than -1.5 -1.5 to -0.25 > -0.25 to 0.25 > 0.25 to +1.5 Greater than +1.5
GRAY VIREO
GRACE’S WARBLER
Percent Change per Year
Percent Change per Year
Less than -1.5 -1.5 to -0.25 > -0.25 to 0.25 > 0.25 to +1.5 Greater than +1.5
Less than -1.5 -1.5 to -0.25 > -0.25 to 0.25 > 0.25 to +1.5 Greater than +1.5
LEWIS’S WOODPECKER
OLIVE-SIDED FLYCATCHER
7.84
LONG-BILLED CURLEW
Percent Change per Year
Percent Change per Year
Less than -1.5 -1.5 to -0.25 > -0.25 to 0.25 > 0.25 to +1.5 Greater than +1.5
Less than -1.5 -1.5 to -0.25 > -0.25 to 0.25 > 0.25 to +1.5 Greater than +1.5
PINYON JAY
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APPENDIX H. BBS TREND MAPS FOR IWJV FOCAL LANDBIRD SPECIES
Percent Change per Year
Percent Change per Year
Less than -1.5 -1.5 to -0.25 > -0.25 to 0.25 > 0.25 to +1.5 Greater than +1.5
Less than -1.5 -1.5 to -0.25 > -0.25 to 0.25 > 0.25 to +1.5 Greater than +1.5
RED-NAPED SAPSUCKER
RUFOUS HUMMINGBIRD
Percent Change per Year
Percent Change per Year
Less than -1.5 -1.5 to -0.25 > -0.25 to 0.25 > 0.25 to +1.5 Greater than +1.5
Less than -1.5 -1.5 to -0.25 > -0.25 to 0.25 > 0.25 to +1.5 Greater than +1.5
SAGE SPARROW
SWAINSON’S HAWK
7.85
SAGE THRASHER
Percent Change per Year
Percent Change per Year
Less than -1.5 -1.5 to -0.25 > -0.25 to 0.25 > 0.25 to +1.5 Greater than +1.5
Less than -1.5 -1.5 to -0.25 > -0.25 to 0.25 > 0.25 to +1.5 Greater than +1.5
VIRGINIA’S WARBLER
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APPENDIX H. BBS TREND MAPS FOR IWJV FOCAL LANDBIRD SPECIES
Percent Change per Year
Percent Change per Year
Less than -1.5 -1.5 to -0.25 > -0.25 to 0.25 > 0.25 to +1.5 Greater than +1.5
Less than -1.5 -1.5 to -0.25 > -0.25 to 0.25 > 0.25 to +1.5 Greater than +1.5
WHITE-HEADED WOODPECKER
7.86
WILLOW/ALDER FLYCATCHER
I n t e r m o u n t a i n We s t J o i n t Ve n t u re | C o n s e r v i n g H a b i t a t T h r o u g h P a r t n e r s h i p s | w w w. i w j v. o rg