1. School of Environmental and Forest Science; University of Washington; Seattle Washington 98195-2100 USA
2. Cooperative Institute for Research in the Atmosphere; Colorado State University; Fort Collins Colorado 80523-1375 USA
3. Lamont-Doherty Earth Observatory; Department of Earth and Environmental Sciences; Columbia University; Palisades New York 10964-1000 USA
4. Department of Migration and Immuno-Ecology; Max-Planck Institute for Ornithology; Radolfzell 78315 Germany
5. Department of Biology; University of Maryland; College Park Maryland 20742 USA
6. Lake Clark National Park and Preserve; U.S. National Park Service; Port Alsworth Alaska 99653 USA
7. Department of Fish and Wildlife Sciences; University of Idaho; Moscow Idaho 83844 USA
8. Institute of Arctic Biology; University of Alaska Fairbanks; Fairbank Alaska 99775 USA
9. Geospatial Laboratory for Environmental Dynamics; University of Idaho; Moscow Idaho 83844-1135 USA
10. McCall Outdoor Science School; College of Natural Resources; University of Idaho; McCall Idaho 83638 USA
11. Wildlife Biology Program, W.A. Franke College of Forestry and Conservation; University of Montana; Missoula Montana 59812 USA
12. College of Earth, Ocean, and Atmospheric Sciences; Oregon State University; Corvallis Oregon 97331-5503 USA