1. Inst. of Evolutionary Biology and Environmental Studies, Univ. of Zurich; Winterthurerstrasse 190 CH-8057 Zurich Switzerland
2. Univ. Ovidius Constanţa, Faculty of Natural Sciences, Al. Universităţii, corp B; Constanţa Romania
3. ‘Emil Racoviţă‘ Inst. of Speleology of Romanian Academy; 13 Sptembrie Road, no. 13 RO-050711 Bucharest Romania
4. Faculty of Sustainability, Leuphana Univ. Lueneburg; Lüneburg Germany
5. Dept of Environmental Sciences; Sapientia Univ.; Cluj-Napoca Romania
6. Milvus Group, Bird and Nature Protection Association; Crinului Road, no. 22 540343 Târgu-Mureş Romania
7. KARCH; Passage Maximilien-de-Meuron 6 CH-2000 Neuchâtel Switzerland