About the Authors

Ann E. McKellar


Affiliation Department of Biology, Queen's University, Kingston, Canada

Andrew P. Hendry

Affiliation Redpath Museum and Department of Biology, McGill University, Montreal, Canada

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AEM APH. Analyzed the data: AEM. Wrote the paper: AEM APH.