About the Authors

Franziska C. Schädelin

franziska.schaedelin@vetmeduni.ac.at

Affiliation Konrad Lorenz Institute of Ethology, Department of Integrative Biology and Evolution, University of Veterinary Medicine, Vienna, Savoyenstrasse, Vienna, Austria

Stefan Fischer

Affiliation Institute of Ecology and Evolution, University Bern, Wohlenstrasse, Hinterkappelen, Switzerland

Richard H. Wagner

Affiliation Konrad Lorenz Institute of Ethology, Department of Integrative Biology and Evolution, University of Veterinary Medicine, Vienna, Savoyenstrasse, Vienna, Austria

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: FS SF RW. Performed the experiments: FS SF. Analyzed the data: SF. Wrote the paper: RW FS SF.