1. Cary Institute of Ecosystem Studies Millbrook NY USA
2. Freie Universität Berlin Berlin Germany
3. Department of Ecology, Evolution, and Marine Biology University of California Santa Barbara Santa Barbara CA USA
4. Division of Conservation Vegetation and Landscape Ecology University of Vienna Vienna Austria
5. Department of Biosciences Swansea University Singleton Park UK
6. Aquatic Systems Biology Unit Technical University of Munich Freising Germany
7. Leibniz‐Institute of Freshwater Ecology and Inland Fisheries (IGB) Berlin Germany
8. Institute for Multidisciplinary Research University of Belgrade BelgradeSerbia
9. Commonwealth Scientific and Industrial Research Organisation Land and Water Black Mountain Canberra Australia
10. School of Biological Sciences University of Aberdeen Aberdeen UK
11. Department of Natural Resource Sciences McGill University‐MacDonald Campus Saint‐Anne‐de‐Bellevue Canada
12. Institute of Botany Department of Invasion Ecology The Czech Academy of Sciences Průhonice Czech Republic
13. Department of Invasion Ecology Institute of Botany The Czech Academy of Sciences Průhonice Czech Republic
14. Department of Ecology Faculty of Science Charles University Viničná 7 Prague 2 Czech Republic
15. Centre for Invasion Biology Department of Botany & Zoology Stellenbosch University Matieland7602 South Africa
16. School of Biology Newcastle University Newcastle UK
17. West Iceland Nature Research Centre Stykkishólmur Iceland
18. Faculty of Life and Environmental Sciences University of Iceland Reykjavík Iceland
19. Department of Biology Duke University Durham NC USA
20. Berlin‐Brandenburg Institute of Advanced Biodiversity Research (BBIB) Berlin Germany