1. Department of Biology, Stanford University , Stanford, CA , United States
2. Centro de Investigaciones Científicas de las Huastecas “Aguazarca”, A.C. , Calnali, Hidalgo , Mexico
3. Center for Population Biology, University of California , Davis, CA , United States
4. Department of Ecology and Evolutionary Biology, University of Toronto , Toronto, ON , Canada
5. Hanna H. Gray Fellow, Howard Hughes Medical Institutes , Stanford, CA , United States