About the Authors

Kevin G. McCracken

kmccrack@iab.alaska.edu

Affiliation Institute of Arctic Biology, University of Alaska Museum, and Department of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, Alaska, United States of America

Robert E. Wilson

Affiliation Institute of Arctic Biology, University of Alaska Museum, and Department of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, Alaska, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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