About the Authors
Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich, Zurich, Switzerland
School of Biological Sciences, The University of Queensland, Brisbane, Queensland, Australia
The authors have declared that no competing interests exist.
Analyzed the data: DM JE. Wrote the paper: DM JE. Designed the mathematical and computational framework: DM JE Implemented the model: DM.