1. Department of Environmental Science, Policy, and Management University of California Berkeley CA94720 USA
2. Schools of Mathematical Sciences and Life Sciences University of KwaZulu Natal South Africa
3. Museum of Paleontology and Department Integrative Biology University of California Berkeley CA94720 USA
4. Bristol Centre for Complexity Sciences, Department of Engineering Mathematics, and School of Biological Sciences University of Bristol Bristol UK
5. Department of Geography, and Emerging Pathogens Institute University of Florida Gainesville FL32601 USA
6. Wetland and Aquatic Research Center U.S. Geological Survey Fort Lauderdale FL33314 USA
7. Department of Geography University of California Berkeley CA94720 USA