About the Authors

Steven C. Bird

sb1611@txstate.edu

Affiliation Department of Biology, Texas State University, San Marcos, Texas, United States of America

Competing Interests

The author has declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SCB. Performed the experiments: SCB. Analyzed the data: SCB. Contributed reagents/materials/analysis tools: SCB. Wrote the paper: SCB.