About the Authors

Chad J. Johnson

Affiliation Environmental Chemistry and Technology Program and Department of Soil Science, University of Wisconsin, Madison, Wisconsin, United States of America

Judd M. Aiken

Affiliation Center for Prions and Protein Misfolding Diseases, University of Alberta, Edmonton, Alberta, Canada

Debbie McKenzie

Affiliation Center for Prions and Protein Misfolding Diseases, University of Alberta, Edmonton, Alberta, Canada

Michael D. Samuel

Affiliation U.S. Geological Survey, Wisconsin Cooperative Wildlife Research Unit, University of Wisconsin, Madison, Wisconsin, United States of America

Joel A. Pedersen

joelpedersen@wisc.edu

Affiliation Environmental Chemistry and Technology Program and Department of Soil Science, University of Wisconsin, Madison, Wisconsin, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CJJ JAP MDS JMA. Performed the experiments: CJJ. Analyzed the data: CJJ JAP. Contributed reagents/materials/analysis tools: JMA DM. Wrote the paper: CJJ JAP.