“Coyotes ‘Round the Town.” Terrain Magazine. Winter 2009.

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Coyotes 'round the Town By Lili DeBarbieri

Alyssa Carol, mother of two, recalls the swish of a tail and a barely recognizable blur darting across the street, just missing her car, in San Francisco's Diamond Heights at 5 am on a Monday morning. "I barely had time to realize it was a coyote," she remembers. Carol, a self-described "city slicker," was enthralled by her close encounter with the wild canid in early spring of 2007. Not long after, a pair of coyotes was killed in Golden Gate Park after they attacked a dog on a leash. "It was a public safety issue because of their aggressive behavior," explains Kyle Ott, of California Fish & Game. "If coyotes have access to garbage and human food, they often lose caution and fear." Despite community ourrage, the animals were shot the day after the.attack. In 2008, another coyote was shot in the Presidio under similar circumstances. These incidents are by no means isolated. Coyotes are showing up in the Bay Area more than ever before, and increasing contact with humans means that at least some are becoming more aggressive. A 2004 study by a University of California wildlife specialist, Coyote Attacks: An Increasing Suburban Problem, reports an increase in the frequency and intensity of coyote attacks in California over the past decade. Since 1970, there have been more than 160 artacks, and they are becoming more frequent, particularly in Southern California. The study found that some coyotes have begun chasing joggers and bicyclists, confronting people walking their dogs, and stalking small children-mostly at the suburban-wildland interface. Although it is unclear if the Bay Area is part of the coyote's historical range, they have lived for years in

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central Contra Costa County's Briones Regional Park and Sunol Regional Wilderness near Pleasanton, both part of the East Bay Regional Parks system. They're also in the City by the Bay, in parks such as Mount Davidson and Glen. The Marin Headlands, Milagra Ridge, and Oakwood Valley contain coyotes, says Christine Powell of the Golden Gate National Recreation Area, and Novato and San Rafael also have coyote reporrs. "We tend to see an increase in these sightings between July and November," says Cindy Machado, animal services director at the Marin Humane Society in Novato. But are the aggressive coyotes just a few bad actors? Or are we the bad actors by strewing our environment with just about everything they need? Found mainly on the Great Plains, the American coyote has expanded its range over the last century in response to the eradication of wolves and human modification of landscapes. Coyotes play an imporrant ecological role in their environment, however fragmented, by maintaining healthy ecosystems and species diversity. As a top carnivore, they function as "keystone predators," helping to regulate the number and density of smaller mesocarnivores such as skunks, raccoons, foxes, and feral cats. Their perceived ability to control rodent populations is one of their more popular attributes. Unlike larger carnivores, coyotes thrive in urban landscapes, increasing in numbers as they live in greater proximity to people. Parr of the reason lies in their flexibility of home range and diet. For example, in California's urban sprawl, humans have created landscapes that support large amounts of rodents, rabbits, and other wildlife. Wily Coyote has taken notice of the year-round abundance of food, water, and shelter. "Coyotes are amazingly adaptable and will take advantage of situations that favor them," says Roberr M. Timm, director and wildlife specialist at UC Davis' Hopland Research and Extension Center. Coyotes, says Timm, "are an opportunistic omnivore." He cites feral cats as an example of a factor that favors coyotes-the cats are easy prey. Says Christine Powell of the Golden Gate National Recreation Area, "We are the source of pet food, garbage, and food from park visitors, so they don't necessarily move to more rural areas when humans encroach." Brian Murphy, on the board of the Walnut Creek Open Space Foundation, has seen the impact of coyotes in his neighborhood-and in his view, coyotes have brought positive changes for native wildlife. "In Walnut Creek it was the people dumping and feeding feral cats who brought coyotes into neighborhoods looking for more easy meals of outdoor cats," says Murphy. "It took the coyotes awhile to clean out feral cat colonies, but

Winter 2009


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