About the Authors

Phil R. Bell
Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada

Corresponding Author

pbell@countygp.ab.ca

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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