[1] Harvard Univ, Dept Organism & Evolutionary Biol, 26 Oxford St, Cambridge, MA 02138 USA
[2] Fdn Edmund Mach, Dept Biodivers & Mol Ecol, Res & Innovat Ctr, Via E Mach 1, I-38010 San Michele All Adige, Italy
[3] Univ Belgrade, Fac Biol, Studentski Trg 16, Belgrade 11000, Serbia
[4] Szent Istvan Univ, Carnivore Ecol Res Grp, Kaposvar Campus,40 Guba Sandor Str, H-7400 Kaposvar, Hungary
[5] Szent Istvan Univ, Dept Wildlife Biol, Inst Conservat Nat Resources, Godollo Campus,Pater Karoly Str 1, H-2100 Godollo, Hungary
[6] USDA, Natl Wildlife Res Ctr, 4101 LaPorte Ave, Ft Collins, CO USA
[7] Colorado State Univ, Dept Fish Wildlife & Conservat Biol, Ft Collins, CO 80523 USA
[8] Univ Calif Santa Cruz, Environm Studies Dept, 1156 High St, Santa Cruz, CA 95064 USA