1. Department of Biology, University of New Mexico Castetter Hall 1480, 219 Yale Blvd NE, Albuquerque, NM 87131, USA
2. Museum of Vertebrate Zoology, 3101 Valley Life Science Building, University of California, Berkeley, Berkeley, CA 94720, USA
3. Department of Environmental Science, Policy, and Management, 130 Mulford Hall, University of California, Berkeley, Berkeley, CA 94720, USA