1. T. Beutel () and M. Heurich, Dept of Research and Documentation, Bavarian Forest National Park, Freyunger Straße 2, DE-94481 Grafenau, Germany. MH also at: Chair of Wildlife Ecology and Management, Univ. of Freiburg, Faculty of Environment and Natural Resources, Freiburg, Germany.
2. B. Reineking, Univ. Grenoble Alpes, Irstea, UR EMGR, St-Martin-d'Hères, France, and: Biogeographical Modelling, Bayreuth Center of Ecology and Environmental Research BayCEER, Univ. of Bayreuth, Bayreuth, Germany.
3. A. Tiesmeyer and C. Nowak, Senckenberg Research Inst. and Natural History Museum Frankfurt, Gelnhausen, Germany. AT also at: Inst. for Ecology, Evolution and Diversity, Goethe Univ. Frankfurt, Frankfurt am Main, Germany