About the Authors

Ed Manley

ed.manley@ucl.ac.uk

Affiliation Centre for Advanced Spatial Analysis (CASA), University College London, Gower Street, London, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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