About the Authors

Leigh G. Torres

Leigh.Torres@oregonstate.edu

Affiliation Department of Fisheries and Wildlife, Marine Mammal Institute, Oregon State University, Hatfield Marine Science Center, Newport, Oregon, United States of America

Rachael A. Orben

Affiliation Department of Fisheries and Wildlife, Marine Mammal Institute, Oregon State University, Hatfield Marine Science Center, Newport, Oregon, United States of America

Irina Tolkova

Affiliation Applied Math and Computer Science Departments, University of Washington, Seattle, Washington, United States of America

David R. Thompson

Affiliation National Institute of Water and Atmospheric Research Ltd., Hataitai, Wellington, New Zealand

Competing Interests

The National Institute of Water and Atmospheric Research, Ltd. (NIWA) provided support in the form of salaries for authors LGT and DRT, and the collection of the Galapagos tortoise track was supported by e-obs GmbH, but these commercial affiliations do not alter our adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceptualization: LGT RAO IT. Data curation: IT RAO. Formal analysis: LGT RAO IT. Funding acquisition: LGT DRT. Investigation: LGT RAO DRT. Methodology: LGT RAO IT. Project administration: LGT DRT. Resources: LGT DRT. Software: RAO IT. Supervision: LGT RAO DRT. Validation: LGT RAO IT. Visualization: LGT RAO. Writing – original draft: LGT RAO. Writing – review & editing: LGT RAO DRT.