About the Authors

Nicholas L. Charlton

Nic.Charlton@bristol.ac.uk

Affiliation School of Biological Sciences, University of Bristol, Bristol, United Kingdom

Alasdair I. Houston

Affiliation School of Biological Sciences, University of Bristol, Bristol, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AH. Analyzed the data: NLC. Wrote the paper: NLC AH.