About the Authors
- Peter T. Fretwell
- Mapping and Geographic Information Centre, British Antarctic Survey, Cambridge, United Kingdom
- Iain J. Staniland, Jaume Forcada
- Ecosystems Department, British Antarctic Survey, Cambridge, United Kingdom
The authors have declared that no competing interests exist.
Conceived and designed the experiments: PTF JF IS. Performed the experiments: PTF. Analyzed the data: PTF. Contributed reagents/materials/analysis tools: PTF JF IS. Wrote the paper: PTF JF IS.