1. Department of Zoology; Institute of Ecology and Earth Sciences; University of Tartu; Tartu Estonia
2. School of Life and Environmental Sciences; University of Sydney; Sydney NSW Australia
3. West Branch; Russian Research Institute of Game Management and Fur Farming; Saint Petersburg Russia
4. Russian Research Institute of Game Management and Fur Farming; Kirov Russia
5. N.K. Koltzov Institute of Developmental Biology; Russian Academy of Sciences; Moscow Russia
6. Institute of Plant and Animal Ecology; Ural Branch of Russian Academy of Sciences; Yekaterinburg Russia
7. Federal Scientific Center of the East Asia Terrestrial Biodiversity; Far Eastern Branch of the Russian Academy of Sciences; Vladivostok Russia
8. Natural Resources Institute; Rovaniemi Finland
9. Faculty of Environmental Sciences and Natural Resource Management; Norwegian University of Life Sciences; Ås Norway
10. Norwegian Institute for Nature Research; Trondheim Norway
11. NIBIO; Norwegian Institute of Bioeconomy Research; Svanvik Norway
12. Faculty of Forestry; Technical University; Zvolen Slovakia