1. Field Station Fabrikschleichach, Department of Animal Ecology and Tropical Biology, Biocenter; University of Würzburg; Rauhenebrach Germany
2. Terrestrial Ecology Research Group, Department of Ecology and Ecosystem Management, School of Life Sciences Weihenstephan; Technical University of Munich; Freising Germany
3. Bavarian Forest National Park; Grafenau Germany
4. Bavarian State Institute for Forestry; Freising Germany
5. Department of Ecology, Animal Ecology, Faculty of Biology; Philipps-University of Marburg; Marburg Germany