About the Authors

Anya Theis

Affiliation Zoological Institute, University of Basel, Basel, Switzerland

Walter Salzburger

walter.salzburger@unibas.ch (WS); bernd.egger@unibas.ch (BE)

Affiliation Zoological Institute, University of Basel, Basel, Switzerland

Bernd Egger

walter.salzburger@unibas.ch (WS); bernd.egger@unibas.ch (BE)

Affiliation Zoological Institute, University of Basel, Basel, Switzerland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AT WS BE. Performed the experiments: AT BE. Analyzed the data: AT BE. Wrote the paper: AT WS BE.