1. Mammal Research Institute, Polish Academy of Sciences , Stoczek 1, Białowieża 17-230 , Poland
2. Working Group for Wildlife Research at Clinic for Birds, Reptiles, Amphibians and Fish, Justus-Liebig-University Giessen , Frankfurter Straße 108, 35392 Gießen , Germany
3. Department of Zoology, Musée National d’Histoire Naturelle , rue Münster 25, 2160 Luxembourg , Luxembourg
4. Natural Resources Institute Finland (Luke) , Latokartanonkaari 9, 00790 Helsinki , Finland
5. Lammi Biological Station, University of Helsinki , Pääjärventie 320, 16900 Lammi , Finland
6. A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences , Leninskij prosp. 33, Moscow 119071 , Russia
7. State National Park Belovezhskaya Pushcha , Kamenyuki 225063 , Republic of Belarus
8. Department of Phytology, Technical University in Zvolen , T. G. Masaryka 24, 96001 Zvolen , Slovak Republic
9. Kyiv Zoological Park of National Importance , Peremohy Ave. 32, Kyiv 04116 , Ukraine
10. Faculty of Agriculture, Department of Fisheries, Apiculture, Wildlife Management and Special Zoology, University of Zagreb , Svetošimunska cesta 25, 10000 Zagreb , Croatia
11. Centre for Agricultural Genomics and Biotechnology, University of Debrecen , Egyetem tér 1, 4032 Debrecen , Hungary
12. Department of Biology, Vytautas Magnus University , Vileikos g. 8-802, 44404 Kaunas , Lithuania
13. Department of Forest Protection and Wildlife Management, Mendel University in Brno , Zemědělská 3, 61300 Brno , Czech Republic
14. Department of Forest Ecology, Faculty of Forestry and Wood Technology, Mendel University in Brno , Zeměděská 3, 61300 Brno , Czech Republic
15. Bureau of Wildlife Biology Bavaria , Haslau 21, 83700 Rottach-Egern , Germany
16. Institute of Marine Biology, Biotechnology and Aquaculture (IMBBC), Hellenic Centre for Marine Research , Gournes Pediados, P.O. Box 2214, 71003 Heraklion, Crete , Greece
17. Wildlife Management Department, University of Forestry , 10 Kliment Ohridski Blvd., 1797 Sofia , Bulgaria
18. Environmental Protection College , Trg Mladosti 7, 3320 Velenje , Slovenia
19. Department of Forest Ecology, Slovenian Forestry Institute , Večna pot 2, 1000 Ljubljana , Slovenia
20. Faculty of Forestry, University of Belgrade , Kneza Višeslava 1, 11030 Belgrade , Serbia
21. Research Institute of Wildlife Ecology, University of Veterinary Medicine Vienna , Savoyenstraße 1, 1160 Vienna , Austria
22. “Grigore Antipa” National Museum of Natural History , Șoseaua Pavel D. Kiseleff 1, 011341 Bucharest , Romania
23. Faculty of Forestry, Stefan cel Mare University of Suceava , Str. Universitatii, 13, 720229 Suceava , Romania
24. Wildlife Department, Estonian Environment Agency , Mustamäe tee 33, 10616 Tallin , Estonia