About the Authors
- Linnea M. Carver
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Affiliation Department of Biology, Sewanee: The University of the South, Sewanee, Tennessee, United States of America
- Patricia Perlaky
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Affiliation Raccoon Mountain Caverns, Chattanooga, Tennessee, United States of America
- Alan Cressler
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Affiliation Independent Researcher, Atlanta, Georgia, United States of America
- Kirk S. Zigler
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* E-mail: kzigler@sewanee.edu
Affiliation Department of Biology, Sewanee: The University of the South, Sewanee, Tennessee, United States of America
Competing Interests
The authors have declared that no competing interests exist. Raccoon Mountain Caverns provided support in the form of salary for one author [PP], but this does not alter the authors' adherence to PLOS ONE policies on sharing data and materials.
Author Contributions
Conceived and designed the experiments: LMC KSZ. Performed the experiments: LMC PP AC KSZ. Analyzed the data: LMC KSZ. Contributed reagents/materials/analysis tools: LMC PP AC KSZ. Wrote the paper: LMC PP AC KSZ.