About the Authors

Michael A. Sawaya

sawaya.mike@gmail.com

Affiliations Western Transportation Institute, Montana State University, Bozeman, Montana, United States of America, Department of Ecology, Montana State University, Bozeman, Montana, United States of America

Jeffrey B. Stetz

Affiliation Sinopah Wildlife Research Associates, Missoula, Montana, United States of America

Anthony P. Clevenger

Affiliation Western Transportation Institute, Montana State University, Bozeman, Montana, United States of America

Michael L. Gibeau

Affiliation Mountain National Parks, Parks Canada, Lake Louise, Alberta, Canada

Steven T. Kalinowski

Affiliation Department of Ecology, Montana State University, Bozeman, Montana, United States of America

Competing Interests

The authors have read the journal's policy and have the following conflicts: they received a small amount of funding from a commercial source, the Mountain Equipment Cooperative. Two of the authors have recently become affiliated with a commercial company, Sinopah Wildlife Research Associates. 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: MS JS AC MG SK. Performed the experiments: MS AC MG SK. Analyzed the data: MS JS. Contributed reagents/materials/analysis tools: MS JS AC MG SK. Wrote the paper: MS JS AC MG SK. Provided funding for data collection and genetic analysis: AC MG.