[1
] US Geological Survey, Western Ecological Research Center, Las Vegas Field Station,
160 N. Stephanie Street, Henderson, NV 89074, USA
[2
] Department of Biology, San Diego State University, 5500 Campanile Drive, San Diego,
CA 92182, USA
[3
] Graduate Group in Ecology, University of California, Davis, One Shields Avenue, Davis,
CA 95618, USA
[4
] US Geological Survey, Western Ecological Research Center, Davis Field Station, One
Shields Avenue, University of California, Davis, CA 95618, USA
[5
] Department of Geography, University of Nevada-Reno, 1664 N. Virginia Street, Reno,
NV 89557, USA
[6
] Wildlife Disease Laboratories, Institute for Conservation Research, San Diego Zoo
Global, PO Box 120551, San Diego, CA 92112, USA