Dr. Ivan Kos received his PhD in 1995 in Biology from the University of Ljubljana. He is currently associate professor on the Department of Biology, Biotechnical Faculty; University of Ljubljana. He has lectures of Animal Ecology, Ecosystems and part of Biogeography. He is leader of research group of Animal Ecology. The main topic of research is related to the Dinaric forest and other habitats in Dinaric region, particular to structure, role and function of biodiversity in ecosystems processes. In the last years he was involved in different project and research programs i.e.: Zoological and speleobiological research (P1-0184, leader prof. dr. Boris Sket); Karst – biodiversity, infl uence of overgrowing and important on nature conservation (L1-6587); Conservation genetics of brown bear, lynx and red deer in Slovenia (L1-6484). He is a member of different Association as: SCALP – Status and Conservation of Alpine Lynx Population; Centre International de Myriapodology, Paris; Dinaricum - Society of research, promotion and sustainable development of Dinaricum; Speleological Society Ribnica; Slovenian Ecological Society; Slovenian Entomological Society; Slovenian Hunting Association and others.