About the Authors
Center for Conservation Biology, Department of Biological Sciences, Stanford University, Stanford, California, United States of America
The Nature Conservancy, San Francisco, California, United States of America
Department of Environmental Science and Policy, University of California Davis, Davis, California, United States of America
The authors have declared that no competing interests exist.
KMAC, MRS, DRC, ECU, and GCD conceived and designed the experiments. DRC performed the experiments. KMAC analyzed the data. KMAC, MRS, DRC, ECU, and GCD wrote the paper.