1. Department of Systematic Zoology, Faculty of Biology, Adam Mickiewicz University in Poznań, Ulica Uniwersytetu Poznańskiego 6, Poznań 61-614, Poland
2. INRAE, LESSEM, University Grenoble Alpes, 2 rue de la Papeterie, BP 76, Saint-Martin-d'Hères 38400, France
3. Mammal Research Institute, Polish Academy of Sciences, Ul. Stoczek 1, 17-230 Białowieża, Poland
4. Department of Forest Resources Management, Forest Research Institute-Sękocin Stary, ul. Braci Leśnej 3, 05-090 Raszyn, Poland
5. Department of Forest Biodiversity, Faculty of Forestry, University of Agriculture, al. 29 Listopada 46, 31-425 Kraków, Poland
6. Department of Forest Management Planning, Dendrometry and Forest Economics, Institute of Forests Sciences, Warsaw University of Life Sciences (SGGW), Nowoursynowska Str. 159, Warszawa 02-776, Poland
7. Department of Game Management and Wildlife Biology, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences, Kamýcká 129, 165 00 Prague, Czech Republic