About the Authors

Matthew L. Brien

matthew_brien@hotmail.com

Affiliations Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, NT, Australia, Wildlife Management International Pty. Limited, Karama, NT, Australia

Jeffrey W. Lang

Affiliation Department of Fisheries, Wildlife and Conservation Biology, University of Minnesota, Saint Paul, Minnesota, United States of America

Grahame J. Webb

Affiliations Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, NT, Australia, Wildlife Management International Pty. Limited, Karama, NT, Australia

Colin Stevenson

Affiliation Department of Wildlife, Madras Crocodile Bank Trust and Centre for Herpetology, Mamallapuram, Tamil Nadu, India

Keith A. Christian

Affiliation Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, NT, Australia

Competing Interests

Grahame Webb is the owner of Wildlife Management International, while Keith Christian is employed by Charles Darwin University as a professor. However, this does not alter the authors’ adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: MB JL GW KC. Performed the experiments: MB CS. Analyzed the data: MB JL GW CS KC. Wrote the paper: MB JL GW CS KC.