1. Program in Ecology, Evolution and Conservation Biology; University of Nevada; 1664 N. Virginia Street, Stop 314; Reno; NV; 89557; USA
2. Department of Natural Resources and Environmental Sciences; University of Nevada; 1664 N. Virginia Street, Stop 186; Reno; NV; 89503; USA
3. Agricultural Research Service; USDA, University of Nevada; 920 Valley Road; Reno; NV; 89512; USA
4. North America Program; Wildlife Conservation Society; 301 N. Willson Ave.; Bozeman; MT; 59715; USA
5. Biology Department; University of Nevada; 1664 N. Virginia Street, Stop 314; Reno; NV; 89557; USA