1. Dept of Natural History, NTNU Univ. Museum, Norwegian Univ. of Science and Technology Trondheim Norway
2. Dept of Natural Resources and Environmental Sciences, Agricultural Univ. of Iceland Reykjavik Iceland
3. Canada Research Chair on Northern Biodiversity and Centre for Northern Studies, Univ. du Québec à Rimouski Rimouski QC Canada
4. Inst. of Ecology and Earth Sciences, Dept of Botany, Univ. of Tartu Tartu Estonia
5. Alaska Dept of Fish and Game, Anchorage AK Canada
6. Arctic Centre, Univ. of Lapland Rovaniemi Finland
7. Dept of Biological Sciences, Boise State Univ Boise ID USA
8. Centre d'Étude de la Forêt and Dépt de Biologie, Univ Laval, Québec QC Canada
9. Dept of Biological Sciences, Univ. of Bergen Bergen Norway
10. Section of Ecology, Dept of Biology, Univ. of Turku Turku Finland
11. Canada Research Chair in Polar and Boreal Écologie and Centre for Northern Studies, Dépt de Biologie, Univ. de Moncton Moncton NB Canada
12. The Soil Conservation Service of Iceland Gunnarsholt Hella Iceland
13. Dept of Ecosystem and Public Health, Faculty of Veterinary Medicine, Univ. of Calgary Calgary AB Canada
14. Norwegian Polar Inst., Fram Centre Tromsø Norway
15. Martin Mere Wildfowl and Wetlands Trust, Burscough Lancashire UK
16. Dept of Animal Nutrition and Management, Swedish Univ. of Agricultural Sciences Uppsala Sweden
17. Arctic Research Station of Inst. of Plant and Animal Ecology, Ural Branch of Russian Academy of Sciences, Labytnangi, Arctic Research Center of Yamal‐Nenets Autonomous District Salekhard Russia
18. Australian Tropical Herbarium, James Cook Univ Cairns QLD Australia
19. Univ. and Jepson Herbaria, and: Dept of Integrative Biology, Univ. of California Berkeley CA USA
20. Norwegian Inst. for Nature Research NINA Tromsø Norway
21. Dept of Arctic and Marine Biology, UiT The Arctic Univ. of Norway Tromsø Norway