About the Authors

Dik Heg

dik.heg@iee.unibe.ch

Affiliation Department of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, Hinterkappelen, Switzerland

Eva Jutzeler

Affiliation Department of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, Hinterkappelen, Switzerland

Jeremy S. Mitchell

Affiliation Department of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, Hinterkappelen, Switzerland

Ian M. Hamilton

Affiliations Department of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, Hinterkappelen, Switzerland, Department of Evolution, Ecology and Organismal Biology, Department of Mathematics, The Ohio State University, Columbus, Ohio, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DH JSM IMH. Performed the experiments: DH EJ JSM IMH. Analyzed the data: DH. Contributed reagents/materials/analysis tools: DH EJ JSM IMH. Wrote the paper: DH JSM IMH.