1. Department of Biological Sciences University of Alberta Edmonton AB Canada
2. Department of Botany and Zoology Faculty of Science Masaryk University Brno Czech Republic
3. Research Unit of Biodiversity (CSIC/UO/PA) Oviedo University Mieres Spain
4. Department of Invasion Ecology Institute of Botany Czech Academy of Sciences Průhonice Czech Republic
5. UR “Ecologie et Dynamique des Systèmes Anthropisés” (EDYSAN UMR 7058 CNRS‐UPJV) Université de Picardie Jules Verne Amiens France
6. Department of Biology Center for Biodiversity Dynamics in a Changing World (BIOCHANGE) and Section for Ecoinformatics & Biodiversity Aarhus University Aarhus C Denmark
7. Department of Ecology Faculty of Science Charles University Prague Czech Republic
8. Institute for Environmental Protection and Research – ISPRA Rome Italy
9. Department of Plant Biology and Ecology Faculty of Science and Technology University of the Basque Country UPV/EHU Bilbao Spain
10. Institute for Ecology and Landscape Weihenstephan‐Triesdorf University of Applied Sciences Freising Germany
11. Institute of Environmental Sciences University of Castilla‐La Mancha Toledo Spain
12. Institute of Biology Martin Luther University Halle Wittenberg Halle Germany
13. German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig Leipzig Germany
14. Institute of Botany Nature Research Centre Vilnius Lithuania
15. Research Centre of the Slovenian Academy of Sciences and Arts Institute of Biology Ljubljana Slovenia
16. Faculty of Forestry University of Zagreb Zagreb Croatia
17. Department of Plant and Fungal Diversity and Resources Institute of Biodiversity and Ecosystem Research Bulgarian Academy of Sciences Sofia Bulgaria
18. WSL Swiss Federal Research Institute Birmensdorf Switzerland