About the Authors

Simon L. Zeller

To whom correspondence should be addressed. E-mail: zellsim@uwinst.uzh.ch

Affiliation Institute of Environmental Sciences, University of Zürich, Zürich, Switzerland

Helmut Brandl

Affiliation Institute of Environmental Sciences, University of Zürich, Zürich, Switzerland

Bernhard Schmid

Affiliation Institute of Environmental Sciences, University of Zürich, Zürich, Switzerland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SZ BS. Performed the experiments: SZ. Analyzed the data: SZ BS. Contributed reagents/materials/analysis tools: HB BS. Wrote the paper: SZ. Other: Supervision: BS. Main supervisor of the master thesis: HB. Reviewing: BS HB. Developed the study design: BS. Helped with the analysis of the data: BS. Helped with the manuscript writing: BS. Provided all necessary know-how and support: HB. Support in lab: HB.