1. Dépt de Biologie Caribou Ungava and Centre d'Etudes Nordiques, Univ. Laval Québec QC Canada
2. LECA – Laboratoire d'Ecologie Alpine, UMR CNRS 5553, Univ. Savoie Mont Blanc Le Bourget‐du‐Lac France
3. Dept of Integrative Ecology Estación Biológica de Doñana, EBD‐CSIC Seville Spain
4. Landscape Ecology, Inst. of Terrestrial Ecosystems, ETH Zu rich, Zu rich, Switzerland, and Swiss Federal Inst. for Forest, Snow and Landscape Research Birmensdorf Switzerland
5. Canada Research Chair in Polar and Boreal Ecology, Dept of Biology, Univ. of Moncton Moncton NB Canada
6. IBIS (Inst. de Biologie Intégrative et des Systèmes), Univ. Laval Québec QC Canada