1. Dept of Biology, Univ. of Saskatchewan Saskatoon SK Canada
2. Dept of Geography, Memorial Univ St. John's NL Canada
3. Centre d'études nordiques, Dépt de biologie, Univ Laval, Québec QC Canada
4. Dept of Biology, Memorial Univ St. John's NL Canada
5. Dept of Earth and Atmospheric Sciences, Univ. of Alberta Edmonton AB Canada
6. Dept of Soil Science, College of Agriculture and Bioresources, Univ. of Saskatchewan Saskatoon SK Canada
7. School of Environment, Resources and Sustainability, Univ. of Waterloo Waterloo ON Canada
8. Dept of Geography, Univ. of British Columbia Vancouver BC Canada
9. Center for Ecosystem Science and Society, Northern Arizona Univ Flagstaff AZ USA
10. School for Resource and Environmental Studies, Dalhousie Univ Halifax NS Canada
11. Norwegian Inst. for Nature Research Trondheim Norway
12. Inst. of North Industrial Ecology Problems, Kola Science Centre of the Russian Academy of Sciences Apatity Russian Federation
13. Inst. of Arctic Biology, Univ. of Alaska Fairbanks Fairbanks AK USA