1. Københavns Universitet Biologisk Institut, 56603, Kobenhavn, Denmark, 2200;
2. University of Iceland, 63541, Life and Environmental Sciences, Sturlugata 7, Reykjavik, Iceland, 101
3. Canada;
4. University of Helsinki Faculty of Agriculture and Forestry, 98742, Research Centre for Ecological Change, Helsinki, Uusimaa, Finland;
5. University of Copenhagen Department of Biology, 56603, Kobenhavn, Denmark;
6. Utrecht University Department of Biology, 117177, Ecology & Biodiversity, Utrecht, Utrecht, Netherlands;
7. University of Copenhagen Department of Biology, 56603, Terrestrial Ecology, Kobenhavn, Denmark;
8. University of British Columbia, Tundra Ecology Lab Department of Geography , 1984 West Mall, Vancouver, British Columbia, Canada, V6T 1Z2, ;
9. University Centre in Svalbard Department of Arctic Biology, 213822, Longyearbyen, Norway;
10. Qatar University, 61780, Doha, Ad Dawhah, Qatar;
11. Grand Valley State University, 1142, Biology, 1 Campus Drive, Allendale, Michigan, United States, 49401-9401;
12. University of Bergen, 1658, Biological Sciences, Bergen, Hordaland, Norway;
13. The University of Sheffield, 7315, Department of Animal and Plant Sciences, Sheffield, Sheffield, United Kingdom of Great Britain and Northern Ireland
14. Tomsk State University, Tomsk, Russian Federation;
15. University of Parma, 9370, Parma, Emilia-Romagna, Italy;
16. University of Tromso, 8016, Tromso, Norway;
17. Vrije Universiteit Amsterdam, 1190, Ecological Sciences, Amsterdam, Noord-Holland, Netherlands;
18. Umea Universitet, 8075, Ecology and Environmental Sciences, Umea, Sweden, 901 87;
19. Universitetet i Bergen, 1658, Biological Sciences, Thormøhlensgate 53A, Bergen, Norway, 5006;
20. Lomonosov Moscow State University, 64935, Ecology and Plant Geography, Moskva, Moskva, Russian Federation;
21. Grand Valley State Univ, Biology, 1 Campus Drive, Allendale, Michigan, United States, 49401, ;
22. Halmstad University, 3694, Ecology and Environmental Science, Halmstad, Halland, Sweden;
23. INRAE, 27057, BioEcoAgro Joint Research Unit, Barenton-Bugny, Île-de-France, France;
24. Norwegian University of Life Sciences, 56625, Faculty of Environmental Sciences and Natural Resource Management, As, Norway, 1432;
25. Université du Quebec à Trois-Rivières, Centre d'Études Nordiques, Room 3417, Trois-Rivières, Quebec, Canada, G9A 5H7, ;
26. Chinese Academy of Sciences Chengdu Branch, 53043, Chengdu Institute of Biology, Chengdu, Sichuan, China;
27. Florida International University, 5450, Biological Sciences, 11200 SW 8th St, Miami, Florida, United States, 33199-2156;
28. University of Bergen, 1658, Department of Biological Sciences, Bergen, Hordaland, Norway;
29. University of Freiburg, 9174, Freiburg im Breisgau, Baden-Württemberg, Germany;
30. University of Parma, 9370, Parma, Italy, 43121;
31. WSL Institute for Snow and Avalanche Research SLF, Community Ecology, Mountain Ecosystems, Flüelastrasse 11, Davos Dorf, Switzerland, 7260, , ;
32. Radboud University Nijmegen Faculty of Science, 98810, Institute for Water and Wetland Research, Nijmegen, Gelderland, Netherlands;
33. University of Copenhagen Faculty of Science, 87017, Biology, Copenhagen, Denmark;
34. Hasselt University, 54496, Centre for Environmental Sciences, Hasselt, Limburg, Belgium;
35. Natural Resources Institute Finland, 419837, Oulu, Finland;
36. University of Bergen, 1658, Bergen, Hordaland, Norway;
37. Tomsk State University, Laboratory of Biodiversity and Ecology, Tomsk, Russian Federation;
38. Tomsk State University, Department of Botany and Laboratory of Ecosystem and Climate Change Studies, Tomsk, Russian Federation;
39. Norwegian University of Life Sciences Faculty of Environmental Sciences and Natural Resource Management, 506189, As, Norway, 1432;