About the Authors

Adam J. Dutton

adam.dutton@zoo.ox.ac.uk

Affiliation Wildlife Conservation Research Unit, Department of Zoology, The Recanati-Kaplan Centre, University of Oxford, Oxford, United Kingdom

Cameron Hepburn

Affiliation Smith School of Enterprise and the Environment and James Martin Institute, Said Business School, University of Oxford, and New College Oxford, Oxford, United Kingdom

David W. Macdonald

Affiliation Wildlife Conservation Research Unit, Department of Zoology, The Recanati-Kaplan Centre, University of Oxford, Oxford, United Kingdom

Competing Interests

The authors have read the journal's policy and have the following conflict: This work was funded by the World Society for the Protection of Animals (WSPA).

Author Contributions

Conceived and designed the experiments: AJD. Performed the experiments: AJD. Analyzed the data: AJD. Wrote the paper: AJD. Supervised experimental design and edited manuscript drafts: CH DWM.