1. Faculty of Biology, Dept of Ecology – Animal Ecology, Philipps‐Universität Marburg Marburg Germany
2. Ökologische Station Fabrikschleichach, Dept of Animal Ecology and Tropical Biology, Univ. of Würzburg Germany
3. Yale Univ., Ecology and Evolutionary Biology New Haven CT USA
4. Goethe Univ. Frankfurt, Faculty of Biological Sciences, Inst. for Ecology, Evolution and Diversity, Dept of Conservation Biology, Frankfurt am Main Germany
5. Bavarian Forest National Park Grafenau Germany
6. Bern Univ. of Applied Sciences School of Agricultural Forest and Food Sciences Zollikofen Switzerland
7. Swiss Federal Research Inst. WSL Birmensdorf Switzerland
8. Faculty of Geography, Environmental Informatics Marburg