1. Department of Renewable Resources University of Alberta Edmonton Alberta Canada
2. Wildlife Conservation Society Canada Toronto Ontario Canada
3. Department of Integrative Biology University of Guelph Guelph Ontario Canada
4. Department of Geography and Environmental Studies Carleton University Ottawa Ontario Canada
5. Ecohydrology and Biogeochemistry Group University of Münster Münster Germany
6. Département de géographie Université de Montréal Montréal Québec Canada
7. Department of Ecology and Genetics Uppsala University Uppsala Sweden
8. Institute of Arctic and Alpine Research University of Colorado Boulder Colorado USA