About the Authors

J. Scott MacIvor

jsmacivor@gmail.com

Affiliation Biology Department, York University, Toronto, Ontario, Canada

Laurence Packer

Affiliation Biology Department, York University, Toronto, Ontario, Canada

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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