About the Authors
Division of Biological Sciences, University of California San Diego, La Jolla, California, United States of America
Center for Conservation Biology, Department of Biology, Stanford University, Stanford, California, United States of America
Institut für Zoologie, Abteilung Ökologie, Johannes Gutenberg-Universität, Mainz Germany
The authors have declared that no competing interests exist.
WJ conceived and designed the experiments. WJ analyzed the data. WJ, CHS, and KBG contributed reagents/materials/analysis tools. WJ, CHS, and KBG wrote the paper.