1. Institute for Natural Resources, Oregon State University , Corvallis, Oregon 97331 , USA
2. Cascades Carnivore Project , 505 17th Street, Hood River, Oregon 97031 , USA
3. California Department of Fish and Wildlife , 601 Locust Street, Redding, California 96001 , USA
4. California Department of Fish and Wildlife , 787 North Main Street, Suite 220, Bishop, California 93514 , USA
5. Biological Sciences Department, California Polytechnic State University , 1 Grand Avenue, San Luis Obispo, California 93407 , USA
6. Mammalian Ecology and Conservation Unit, Veterinary Genetics laboratory, University of California, Davis , 1 Shields Avenue, Davis, California 95616 , USA
7. Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis , 1 Shields Avenue, Davis, California 95616 , USA
8. Sierra Nevada Bighorn Sheep Recovery Program, California Department of Fish and Wildlife , 787 North Main St., Suite 220, Bishop, California 93514 , USA
9. Resources Management and Science Division, Yosemite National Park , El Portal, California 95318 , USA
10. USDA Forest Service, Pacific Southwest Region , 1323 Club Drive, Vallejo, California 94592 , USA