About the Author
- Manfred Hartbauer
- Behavioural Ecology Group, Department of Zoology, Karl-Franzens University Graz, Graz, Austria
The author has declared that no competing interests exist.
Conceived and designed the experiments: MH. Performed the experiments: MH. Analyzed the data: MH. Contributed reagents/materials/analysis tools: MH. Wrote the paper: MH.