About the Authors
Department of Biology, University of Texas at Arlington, Arlington, Texas, United States of America
Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: JKP CF. Performed the experiments: JKP SKS. Analyzed the data: JKP SKS MAB CF. Contributed reagents/materials/analysis tools: MAB. Wrote the paper: JKP CF.