About the Authors

Damien Francey

Affiliation Department Eco-Ethology, University of Neuchâtel, Neuchâtel, Switzerland

Ralph Bergmüller

ralph.bergmueller@unine.ch

Affiliation Department Eco-Ethology, University of Neuchâtel, Neuchâtel, Switzerland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RB DF. Performed the experiments: DF. Analyzed the data: RB DF. Contributed reagents/materials/analysis tools: RB DF. Wrote the paper: RB DF.