1. Polish Academy of Sciences; Mammal Research Institute; Białowieża Poland
2. Department of Biology and Wildlife; Institute of Arctic Biology; University of Alaska; Fairbanks AK USA
3. Institute of Zoology; National Academy of Sciences of Belarus; Minsk Belarus
4. Department of Zoology; Institute of Ecology and Earth Science; University of Tartu; Tartu Estonia
5. Norwegian Institute for Nature Research; Trondheim Norway
6. Finnish Food Safety Authority Evira; Helsinki Finland
7. Grimsö Research Station; Swedish University of Agricultural Sciences; Grimsö Sweden
8. Department of Animal Ecology, B. M. Zhitkov Russian Research Institute of Game Management and Fur Farming; Kirov Russia
9. Schmalhausen Institute of Zoology; National Academy of Sciences of Ukraine; Kiev Ukraine
10. Finnish Game and Fisheries Research Institute; Helsinki Finland
11. Institute for Biological Problems of the Cryolithozone; Russian Academy of Sciences Siberian Division; Yakutsk Russia
12. Institute of Ecology; Nature Research Centre; Vilnius Lithuania
13. Latvian State Forest Research Institute ‘Silava’; Salaspils Latvia
14. Interregional Non-Governmental Organization ‘Leningrad Association of Hunters and Fishermen’; Sankt Petersburg Russia
15. Non-commercial Partnership 'Union of Gamekeepers of the Kostroma Region'; Kostroma Russia