1. La Kretz Center for California Conservation, Institute of the Environment and Sustainability, University of California, Los Angeles, CA 90095, USA
2. Department of Wildland Resources, Utah State University, Logan, UT 84231, USA
3. National Park Service, Santa Monica Mountains National Recreation Area, Thousand Oaks, CA 91302, USA
4. Department of Environmental Studies, University of California, Santa Cruz, CA 95064, USA
5. University of Cape Town, Cape Town, South Africa
6. Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA 90095, USA
7. Department of Veterinary Science, University of Wyoming, Laramie, WY 82070, USA