About the Authors

Michael D. Cramer


Affiliation Department of Biological Sciences, University of Cape Town, Cape Town, South Africa

Nichole N. Barger

Affiliation Department of Ecology and Evolutionary Biology, University of Colorado at Boulder, Boulder, Colorado, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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