1. Forest & Nature Lab Department of Environment Ghent University Melle‐Gontrode Belgium
2. School of Biological Sciences The University of Western Australia Crawley WA Australia
3. Faculty of Biology University of Latvia Riga Latvia
4. Southern Swedish Forest Research Centre Swedish University of Agricultural Sciences (SLU) Alnarp Sweden
5. Unité Ecologie et Dynamique des Systèmes Anthropisés (EDYSAN UMR 7058 CNRS‐UPJV) Université de Picardie Jules Verne Amiens Cedex France
6. Forest Ecology and Forest Management Group Wageningen University Wageningen The Netherlands
7. Institute of Ecology Leuphana University of Lüneburg Lüneburg Germany
8. Institute of Botany of the Czech Academy of Sciences Průhonice Czech Republic
9. Department of Botany Faculty of Science Palacký University in Olomouc Olomouc Czech Republic
10. General Botany Institute of Biochemistry and Biology University of Potsdam Potsdam Germany
11. Department Silviculture and Forest Ecology of the Temperate Zones University of Göttingen Göttingen Germany
12. Białowieża Geobotanical Station Faculty of Biology University of Warsaw Białowieża Poland
13. Faculty of Forestry and Wood Sciences Czech University of Life Sciences Prague Prague 6 – Suchdol Czech Republic
14. Faculty of Forestry Technical University in Zvolen Zvolen Slovakia
15. National Forest Centre Zvolen Slovakia
16. NERC Centre for Ecology & Hydrology Lancaster UK
17. Leibniz‐Centre for Agricultural Landscape Research (ZALF) Müncheberg Germany
18. Institute for Biochemistry and Biology University of Potsdam Potsdam (district Golm) Germany