1. Department of Biology and Wildlife Diseases, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Brno, Czech Republic
2. Technisches Büro für Biologie Mag. Dr. Rainer Raab, Deutsch-Wagram, Austria
3. Nature Conservation Agency of the Czech Republic, Regional Office Brno, Brno, Czech Republic
4. Březolupy, Czech Republic