About the Authors

Seth Blumberg

seth.blumberg@ucsf.edu

Affiliations Fogarty International Center, National Institute of Health, Bethesda, Maryland, United States of America, Department of Ecology and Evolutionary Biology, University of California, Los Angeles, California, United States of America, F. I. Proctor Foundation, University of California, San Francisco, California, United States of America

James O. Lloyd-Smith

Affiliations Fogarty International Center, National Institute of Health, Bethesda, Maryland, United States of America, Department of Ecology and Evolutionary Biology, University of California, Los Angeles, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SB JOLS. Performed the experiments: SB. Analyzed the data: SB JOLS. Wrote the paper: SB JOLS.