About the Authors
- Amy E. George
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* E-mail: ageorge@usgs.gov
Affiliation U.S. Geological Survey—Columbia Environmental Research Center, 4200 New Haven Road, Columbia, MO 65201, United States of America
- Duane C. Chapman
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Affiliation U.S. Geological Survey—Columbia Environmental Research Center, 4200 New Haven Road, Columbia, MO 65201, United States of America
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: AEG DCC. Performed the experiments: AEG DCC. Analyzed the data: AEG DCC. Contributed reagents/materials/analysis tools: AEG DCC. Wrote the paper: AEG DCC.