About the Authors
Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom
Centre for the Study of Evolution and School of Life Sciences, University of Sussex, Brighton, United Kingdom
Max-Planck-Institute for Evolutionary Biology, Plön, Germany
The authors have declared that no competing interests exist.
Conceived and designed the experiments: PDK. Performed the experiments: FO. Analyzed the data: DLH BH PDK. Contributed reagents/materials/analysis tools: BH. Wrote the paper: DLH AEW BH PDK.