Juvenile dispersal movements of Eastern Imperial Eagles in the western populations

Juvenile dispersal movements of Eastern Imperial Eagles in the western populations

International Imperial Eagle Working Group Márton Horváth, Tibor Juhász, Imre Fatér, Matthias Schmidt, Michael Dvorak, Beate Wendelin, Gábor Wichmann, Anita Gamauf †, Mike McGrady, Rainer Raab, Péter Spakovszky, Stoycho Stoychev, Dimitar Demerdzhiev, Svetoslav Spasov, Dobromir Dobrev, Bernd-Ulrich Meyburg, David Horal, Ivan Literak, Jozef Chavko, Tomáš Veselovský, Zuzana Guziová, Natia Javakhishvili, Burak Tatar, Cansu Özcan, Emanuel Lisichanets, Szilárd Daróczi, Mátyás Prommer & many others VIII. International Conference on the Conservation of the Eastern Imperial Eagle Eagles of Palearctic: Study and Conservation Conference, Katun village, Altai Kray, Russia, 9 September 2018

Introduction • Satellite-tagging became rapidly developing and expanding tool in raptor research & conservation • Decreasing tag sizes cause less and less effect on birds, but anyhow cause significant disturbance • Decreasing tag costs cause more and more possibility for tagging, but the given question should determine the minimally needed sample size – especially for threatened species • Several different projects targeting the same species worth to be harmonized – especially for threatened species • Pannonian example: we defined a theoretical 5% threshold, as the maximum ratio of juveniles, which should be tagged for any purpose

Objective • MAKE THE 1ST STEP in an international cooperation among eastern imperial eagle (EIE) tracking projects worlwide (in the frame of the non-official International EIE Working Group) • VISUALIZE ON ONE SIMPLE MAP the dispersal behaviour of EIEs in the western (resident?) populations • NOT to analyse the data

Methods

• Asking colleagues to contribute • Agreement on data usage (preliminary only for this particular presentation) • Harmonization of the different data sources and visualization in QGIS (2008-2017)

World distribution of Eastern Imperial Eagles „Resident” populations: • adults thought to be completely resident • immatures thought to be mostly resident

Resident

Summer

Winter

AUSTRIA Period:

2011-2018

No. of tagged birds pullus/juvenile: immature/subad: adult: total:

25* 1 0 26

(*23 Ind. BirdLife, 2 Ind. TB Raab)

No. of data points:

410,000 (BirdLife) + 90,000 (TB Raab)

Types of tags:

NorthstarST, Ecotone, Aquila, Ornitella

Financiers:

EU LIFE Nature (PannonEagle), ETC-Coro-SKAT BirdLife Austria, div. windfarm companies

Contributors:

BirdLife Austria(Matthias Schmidt, Michael Dvorak, Beate Wendelin, GĂĄbor Wichmann) Naturhistorisches Museum Wien (Anita Gamauf) International Avian Research (Mike McGrady) TB Rainer Raab (Rainer Raab, PĂŠter Spakovszky)

CZECH REPUBLIC Period: No. of tagged birds pullus/juvenile: immature/subad: adult: total:

2017-2018 7 0 0 7

Types of tags:

Ecotone

Financiers:

EU LIFE Nature TB Rainer Raab

Contributors:

David Horal, Ivan Literak TB Rainer Raab (Rainer Raab)

SLOVAKIA Period:

2017-2018

No. of tagged birds pullus/juvenile: immature/subad: adult: total:

6 0 0 6

No. of data points:

20,000 (approx.)

Types of tags:

Ecotone

Financiers:

EU LIFE Nature (PannonEagle) TB Rainer Raab

Contributors:

RPS (Jozef Chavko, Zuzana Guziová, Tomáš Veselovský)

HUNGARY Period:

2011-2018

No. of tagged birds pullus/juvenile: immature/subad: adult: total:

60 11 3 74

No. of data points:

850,000 (approx.)

Types of tags:

Microwave, Ecotone, Ornitella, Aquila

Financiers:

EU LIFE Nature (HELICON,PannonEagle,RaptorsPrey) Technisches Büro für Biologie, Rainer Raab EAZA Carnivore Campaign

Contributors:

MME (Márton Horváth, Imre Fatér, Gábor Deák, Attila Bereczky), Hortobágy NPD (Tibor Juhász), Revír Ltd. (István Lotár Molnár, Mátyás Prommer), TB Rainer Raab (Rainer Raab, Péter Spakovszky)

ROMANIA Period: No. of tagged birds pullus/juvenile: immature/subad: adult: total:

2016-2017 2 0 0 2

Types of tags:

Ecotone

Financiers:

EU LIFE Nature

Contributors:

MME (Mátyás Prommer, János Bagyura) Milvus Group (Zsolt Hegyeli, Szilárd Daróczi, Róbert Zeitz)

MACEDONIA Period: No. of tagged birds pullus/juvenile: immature/subad: adult: total:

2013 5 0 0 5

Types of tags:

Microwave GPS-Argos, Ecotone

Financiers:

MME

Contributors:

Aquila Foundation (Emanuel Lisichanets) MME (Mรกrton Horvรกth, Mรกtyรกs Prommer)

BULGARIA & TURKEY (EUROPE) Period:

2008-2018

No. of tagged birds pullus/juvenile: immature/subad: adult: total:

23 1 1 25

No. of data points:

42,000 (approx.)

Types of tags:

Microwave GPS-Argos

Financiers:

EU LIFE Nature Bulgaria-Turkey Cross-border cooperation program

Contributors:

Bulgarian Society for the Protection of Birds (Stoycho Stoychev, Dimitar Demerdzhiev, Svetoslav Spasov, Dobromir Dobrev) Bernd-Ulrich Meyburg

TURKEY (ASIA) Period:

2017-2018

No. of tagged birds pullus/juvenile: immature/subad: adult: total:

11 0 0 11

Types of tags:

Ornitela, Northstar, Ecotone

Financiers:

Turkish Ministry of Forestry and Water Affairs, MME

Contributors:

MME (Márton Horváth, Gábor Deák) Hortobágy NPD (Tibor Juhász) BirdLife Austria (Matthias Schmidt) Turkish Ministry of Forestry and Water Affairs (Burak Tatar) Cansu Özcan

GEORGIA Period:

2016-2018

No. of tagged birds pullus/juvenile: immature/subad: adult: total:

15 0 0 15

Types of tags:

Ecotone

Financiers:

Sabuko, MME

Contributors:

Sabuko (Natia Javakhisvili, Alexander Rukhaia, Guille Major) MME (Mรกrton Horvรกth) Hortobรกgy NPD (Tibor Juhรกsz)

Summary • Tagging have been executed in 9 countries holding „resident” populations • only Serbia, Azerbaijan and Crimea is missing • All together 171 individuals were satellite-tracked • Tags provided much more than 1.5 million locations on the individuals’ dispersal movements

Caucasus

Anatolia

(Thracian migrants) (Macedonian migrants) (Pannonian migrants)

Macedonia Thrace

(Pannonian migrants)

Pannonia

(Thracian migrants) (Macedonian migrants)

Pannonian birds by countries Hungary Slovakia Czech Rep. Romania

And the Final Map...

Pannonia Macedonia Thrace Anatolia Caucasus

Discussion • 1st, but important step • Continue the cooperation with projects targeting the Eastern migratory populations, to provide a worlwide map of the species’ main dispersal habits • Continue the cooperation in future scientific publication and project planning

And finally something else, but interesting from Anatolia:

Aquila heliaca Aquila nipalensis Aquila heliaca x nipalensis

Thank you for the attention!