About the Authors

Helen E Dunbar

Affiliation Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, Arizona, United States of America

Alex C. C Wilson

Address ¤ Current address: Department of Biology, University of Miami, Coral Gables, Florida, United States of America

Affiliation Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, Arizona, United States of America

Nicole R Ferguson

Affiliation Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, Arizona, United States of America

Nancy A Moran

To whom correspondence should be addressed. E-mail: nmoran@email.arizona.edu

Affiliation Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, Arizona, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

HED, ACCW, and NAM conceived and designed the experiments. HED, ACCW, NRF, and NAM performed the experiments. HED, ACCW, and NAM analyzed the data. ACCW and NAM contributed reagents/materials/analysis tools, and wrote the paper.