About the Authors

Jon E. Brommer

To whom correspondence should be addressed. E-mail: jon.brommer@helsinki.fi

Affiliation Department of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland

Mark Kirkpatrick

Affiliation Section of Integrative Biology, The University of Texas at Austin, Austin, United States of America

Anna Qvarnström

Affiliation Department of Ecology and Evolution, Uppsala University, Uppsala, Sweden

Lars Gustafsson

Affiliation Department of Ecology and Evolution, Uppsala University, Uppsala, Sweden

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JB. Analyzed the data: JB. Wrote the paper: MK AQ LG JB.