About the Authors

Karen R Lips

a To whom correspondence should be addressed. E-mail: klips@zoology.siu.edu

Affiliation Department of Zoology, Southern Illinois University, Carbondale, Illinois, United States of America

Jay Diffendorfer

Affiliation Illinois Natural History Survey, Champaign, Illinois, United States of America

Joseph R Mendelson III

Affiliation Zoo Atlanta, Atlanta, Georgia, United States of America

Michael W Sears

Affiliation Department of Zoology, Southern Illinois University, Carbondale, Illinois, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

All four coauthors—KRL, JD, JRM, and MWS—participated in the conception and design of the research, data collection and analyses, and writing of the paper.