About the Authors

Marshall Hampton

Affiliation Department of Mathematics and Statistics, University of Minnesota Duluth, Duluth, Minnesota, United States of America

Richard G. Melvin

Affiliation Department of Biology, University of Minnesota Duluth, Duluth, Minnesota, United States of America

Matthew T. Andrews

mandrews@d.umn.edu

Affiliation Department of Biology, University of Minnesota Duluth, Duluth, Minnesota, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MH RGM MTA. Performed the experiments: MH RGM. Analyzed the data: MH RGM MTA. Contributed reagents/materials/analysis tools: MH RGM MTA. Wrote the manuscript: MH MTA.