1. Czech University of Life Sciences Prague, Faculty of Environmental Sciences Department of Applied Geoinformatics and Spatial Planning; CZ-165 00 Prague 6 Czech Republic
2. Centro Naturalistico Sammarinese; Borgo Maggiore I-47893 Repubblica di San Marino
3. Animal Ecology Group, Centre for Ecological and Evolutionary Studies; University of Groningen; Groningen The Netherlands
4. Department of Wetland Ecology; Estación Biológica de Doñana, CSIC; Sevilla Spain
5. Nature Inventory and EIA-services, Arctic Centre; University of Lapland; PO Box 122 Rovaniemi FI-96101 Finland
6. Institute of Ecology and Earth Sciences; University of Tartu; Tartu EE-51014 Estonia
7. Institute of Zoology; Poznań University of Life Sciences; Poznań PL-60-625 Poland
8. Ecologie Systématique Evolution; Université Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay; Orsay Cedex F-91405 France