About the Authors

Sarah M. Hird

shird1@tigers.lsu.edu

Affiliations Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, United States of America, Museum of Natural Science, Louisiana State University, Baton Rouge, Louisiana, United States of America

Competing Interests

The author was funded by Google Inc. to develop this open-source software. This does not alter the author’s adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

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