About the Authors

Michael O Fisher

Affiliation Division of Environmental Evolutionary Biology, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow, United Kingdom

Ruedi G Nager

Affiliation Division of Environmental Evolutionary Biology, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow, United Kingdom

Pat Monaghan

To whom correspondence should be addressed. E-mail: p.monaghan@bio.gla.ac.uk

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

MOF, RGN, and PM conceived and designed the experiments. MOF performed the experiments. MOF and RGN analyzed the data. PM and MOF wrote the paper.