About the Authors

Jeremy J. Berg

jjberg@ucdavis.edu (JJB); gmcoop@ucdavis.edu (GC)

Affiliations Graduate Group in Population Biology, University of California, Davis, Davis, California, United States of America, Center for Population Biology, University of California, Davis, Davis, California, United States of America, Department of Evolution and Ecology, University of California, Davis, Davis, California, United States of America

Graham Coop

jjberg@ucdavis.edu (JJB); gmcoop@ucdavis.edu (GC)

Affiliations Center for Population Biology, University of California, Davis, Davis, California, United States of America, Department of Evolution and Ecology, University of California, Davis, Davis, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JJB GC. Performed the experiments: JJB. Analyzed the data: JJB. Contributed reagents/materials/analysis tools: GC. Wrote the paper: JJB GC.