About the Authors

Monika Lintner

Affiliation Department of Integrative Zoology, University of Vienna, Vienna, Austria

Anton Weissenbacher

Affiliation Zoo Vienna, Vienna, Austria

Egon Heiss

Egon.Heiss@ua.ac.be

Affiliations Department of Integrative Zoology, University of Vienna, Vienna, Austria, Department of Biology, University of Antwerp, Antwerp, Belgium

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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