1. Mammalian Ecology Group, Department of Animal Ecology and Systematics; Justus-Liebig-University of Giessen; Germany
2. inatu.re, Institute for Applied Animal Ecology and Ecoinformatics; Lollar Germany
3. Workgroup of Bat Conservation in Saxony-Anhalt e.V; Stolberg Germany
4. Biosphärenreservat Karstlandschaft Südharz; Landesreferenzstelle für Fledermausschutz Sachsen-Anhalt; Germany