Affiliation: | 1. San Diego State University Biology Department, 5500 Campanile Drive, San Diego, CA, 92182-4614 USA E-mail: mjennings@mail.sdsu.edu;2. San Diego State University Biology Department, 5500 Campanile Drive, San Diego, CA, 92182-4614 USA;3. Karen C. Drayer Wildlife Health Center, University of California, One Shields Avenue, Davis, CA, 95616 USA |