About the Authors

Julia M. I. Barth

jmi.barth@gmail.com

Affiliation Department of Zoology, University of Otago, Dunedin, New Zealand

Michael Matschiner

Affiliation Allan Wilson Centre for Molecular Ecology and Evolution, Department of Mathematics and Statistics, University of Canterbury, Christchurch, New Zealand

Bruce C. Robertson

Affiliation Department of Zoology, University of Otago, Dunedin, New Zealand

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JB BR. Performed the experiments: JB. Analyzed the data: JB MM. Contributed reagents/materials/analysis tools: BR. Wrote the paper: JB. Performed the BEAST 2 analysis: MM. Helped to draft the manuscript: MM. Assembled the samples set: BR. Revised the manuscript: BR.