1. Centre for Conservation Research Calgary Zoological Society Calgary AB Canada
2. U.S. Geological Survey Patuxent Wildlife Research Center Laurel MD USA
3. Marmot Recovery Foundation Nanaimo BC Canada
4. U.S. Geological Survey Washington Cooperative Fish and Wildlife Research Unit School of Environmental and Forest Sciences (SEFS) & School of Aquatic and Fishery Sciences (SAFS) University of Washington Seattle WA USA