About the Authors

Samantha C. Patrick

spatrick@glos.ac.uk

Affiliations Centre d’Etudes Biologiques de Chizé, CNRS-UPR1934, Villiers-en-Bois, France, Biosciences, University of Gloucestershire, Cheltenham, United Kingdom, Department of Zoology, University of Oxford, Oxford, United Kingdom

Henri Weimerskirch

Affiliation Centre d’Etudes Biologiques de Chizé, CNRS-UPR1934, Villiers-en-Bois, France

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SP HW. Performed the experiments: SP HW. Analyzed the data: SP HW. Contributed reagents/materials/analysis tools: SP HW. Wrote the paper: SP HW.