About the Authors

Helen A. Murphy

murphyha@wfu.edu

Affiliation Wake Forest University, Winston-Salem, North Carolina, United States of America

Clifford W. Zeyl

Affiliation Wake Forest University, Winston-Salem, North Carolina, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HAM. Performed the experiments: HAM. Analyzed the data: HAM. Wrote the paper: HAM CZ.