About the Authors

Chris G. Sibley

Affiliation University of Auckland, Auckland, New Zealand

Joseph Bulbulia


Affiliation University of New Zealand, Wellington, New Zealand

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JB CS. Performed the experiments: CS. Analyzed the data: CS. Contributed reagents/materials/analysis tools: JB CS. Wrote the paper: JB CS. Authors contributed equally to the paper and authorship order was decided at the flip of a coin: JB CS.