About the Authors

K. Mathias Wegner

mathias.wegner@env.ethz.ch

Affiliation Institute for Integrative Biology, Experimental Ecology, ETH Zürich, Zürich, Switzerland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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