1. Manomet Inc., Saxtons River, Vermont, USA
2. Environment and Climate Change Canada, Saskatoon, Saskatchewan, Canada
3. Delaware Bay Shorebird Project, Ambler, Pennsylvania, USA
4. Kansas State University, Manhattan, Kansas, USA
5. New Jersey Audubon Society, Cape May Court House, New Jersey, USA
6. Wildlife Conservation Society, Fairbanks, Alaska, USA
7. University of Alaska Fairbanks, Fairbanks, Alaska, USA
8. Arctic National Wildlife Refuge, Fairbanks, Alaska, USA
9. Canada Research Chair in Polar and Boreal Ecology, Université de Moncton, Moncton, New Brunswick, Canada, and Université du Québec à Rimouski, Rimouski, Quebec, Canada
10. Department of Fish and Wildlife Conservation, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
11. Centre for Wildlife Ecology, Simon Fraser University, Burnaby, British Columbia, Canada
12. Audubon Society of Portland, Portland, Oregon, USA
13. U.S. Fish and Wildlife Service, Portland, Oregon, USA
14. Environment and Climate Change Canada, Yellowknife, Northwest Territories, Canada
15. Environment and Climate Change Canada, Ottawa, Ontario, Canada
16. University of Alaska Anchorage, Anchorage, Alaska, USA
17. Surrey, British Columbia, Canada
18. U.S. Fish and Wildlife Service, Anchorage, Alaska, USA