1. Research Unit of Biodiversity (CSIC, UO, PA); Oviedo University; Mieres Asturias Spain
2. Department of Biodiversity and Environmental Management; University of León; León Spain
3. Department of Botany and Zoology; Masaryk University; Brno Czech Republic
4. Alterra; Wageningen UR; Wageningen The Netherlands
5. Vienna Institute for Nature Conservation and Analyses; Vienna Austria
6. Department of Botany and Biodiversity Research; University of Vienna; Wien Austria
7. Department of Environmental Biology; Sapienza University of Rome; Rome Italy
8. Environmental Hydraulics Institute IH; Parque Científico y Tecnológico de Cantabria; Santander Spain
9. Biodiversity and Conservation Biology; Swiss Federal Research Institute WSL; Birmensdorf Switzerland
10. Aix-Marseille Université; Marignane France
11. Southern Swedish Forest Research Centre; Swedish University of Agricultural Sciences; Alnarp Sweden
12. ISPRA; Italian National Institute for Environmental Protection and Research; Roma Italy
13. Plant Science and Biodiversity Centre; Slovak Academy of Sciences; Institute of Botany; Bratislava Slovakia
14. Department of Plant Biology; University of Barcelona; Barcelona Spain
15. UMR Chrono-environnement; CNRS - Université Bourgogne Franche-Comté; Besançon Cedex France
16. Laboratory of Paleoecology; Department of Vegetation Ecology; The Czech Academy of Sciences; Brno Czech Republic
17. Faculty of Agricultural and Environmental Sciences; University of Rostock; Rostock Germany
18. Geobotany and Botanical Garden; Institute of Biology; Martin Luther University Halle Wittenberg; Halle (Saale) Germany
19. German Centre for Integrative Biodiversity Research (iDiv); Halle-Jena-Leipzig Germany
20. Botanical Garden; University of Wroclaw; Wrocław Poland
21. UR “Ecologie et Dynamique des Systèmes Anthropisés” (EDYSAN UMR 7058, CNRS-UPJV); Université de Picardie Jules Verne; Amiens France
22. University of Lancaster; Lancaster UK
23. Faculty of Forestry; University of Zagreb; Zagreb Croatia
24. Department of Botany; School of Biology; Aristotle University of Thessaloniki; Thessaloniki Greece