1. Institute of Arctic Biology, University of Alaska, Fairbanks, AK 99775, USA,
2. US Geological Survey, Alaska Cooperative Fish and Wildlife Research Unit, University of Alaska, Fairbanks, AK 99775, USA,
3. Department of Atmospheric Sciences, University of California, Berkeley, CA 94720, USA,
4. Department of Atmospheric Sciences, Colorado State University, Fort Collins, CO 80523, USA,
5. Atmospheric Turbulence and Diffusion Division, PO Box 2456, Oak Ridge, TN 37831, USA,
6. Department of Ecology, Evolution, and Behaviour, University of Minnesota, St. Paul MN 55108, USA,
7. Department of Geography, McGill University, Montreal, Quebec, Canada H3A 2K6,
8. Institute of Geography, University of Bern, CH‐3012 Bern, Switzerland,
9. ERIM International, Inc., PO Box 134008, Ann Arbor, MI 48113‐4008, USA,
10. Ecosystem Center, Marine Biological Laboratory, Woods Hole, MA 02543, USA,
11. North‐East Science Station, PO Box 18, Cherskii, Republic of Sakha (Yakutia), 678830 Russia, School of Forestry, University of Montana, Missoula, MT 59812‐1063, USA