Team Nuria SelvaInstitute of Nature Conservation PAS Agnieszka SergielInstitute of Nature Conservation PAS Djuro HuberFACULTY OF VETERINARY MEDICINE, UNIVERSITY OF ZAGREB, CROATIA Filip ZiębaTatra National Park Tomasz Zwijacz-KozicaTatra National Park Teresa Berezowska-CnotaInstitute of Nature Conservation PAS Carlos Bautista LeonInstitute of Nature Conservation PAS Maciej KonopińskiInstitute of Nature Conservation PAS Kamil BartońInstitute of Nature Conservation PAS Alberto García RodríguezESTACIÓN BIOLÓGICA DE DOÑANA EBD-CSIC, SEVILLA, SPAIN Aida ParchInstitute of Nature Conservation PAS Danuta FrydryszakTERRESTRIAL ECOSYSTEMS AND ECOTOXICOLOGY TEAM, Institute of Environment Studies, Jagiellonian University Robert GatzkaSTOWARZYSZENIE PARK OCHRONY BIESZCZADZKIEJ FAUNY (Association "Bieszczady Fauna Protection Park") Agnieszka OlszańskaInstitute of Nature Conservation PAS Katarzyna ChrząścikInstitute of Nature Conservation PAS