About the Authors

Graziella V. DiRenzo

gdirenzo@umd.edu

Affiliation Department of Biology, University of Maryland, College Park, Maryland, United States of America

Penny F. Langhammer

Affiliation School of Life Sciences, Arizona State University, Tempe, Arizona, United States of America

Kelly R. Zamudio

Affiliation Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, New York, United States of America

Karen R. Lips

Affiliation Department of Biology, University of Maryland, College Park, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: GVD PFL KRZ KRL. Performed the experiments: GVD PFL. Analyzed the data: GVD. Contributed reagents/materials/analysis tools: KRZ KRL. Wrote the paper: GVD PFL KRZ KRL.