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Research Article

An Emperor Penguin Population Estimate: The First Global, Synoptic Survey of a Species from Space

  • Peter T. Fretwell mail,

    ptf@bas.ac.uk

    Affiliation: British Antarctic Survey, Cambridge, United Kingdom

    X
  • Michelle A. LaRue,

    Affiliation: Polar Geospatial Center, University in Minnesota, Minneapolis, Minnesota, United States of America

    X
  • Paul Morin,

    Affiliation: Polar Geospatial Center, University in Minnesota, Minneapolis, Minnesota, United States of America

    X
  • Gerald L. Kooyman,

    Affiliation: Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, United States of America

    X
  • Barbara Wienecke,

    Affiliation: Australian Antarctic Division, Hobart, Tasmania, Australia

    X
  • Norman Ratcliffe,

    Affiliation: British Antarctic Survey, Cambridge, United Kingdom

    X
  • Adrian J. Fox,

    Affiliation: British Antarctic Survey, Cambridge, United Kingdom

    X
  • Andrew H. Fleming,

    Affiliation: British Antarctic Survey, Cambridge, United Kingdom

    X
  • Claire Porter,

    Affiliation: Polar Geospatial Center, University in Minnesota, Minneapolis, Minnesota, United States of America

    X
  • Phil N. Trathan

    Affiliation: British Antarctic Survey, Cambridge, United Kingdom

    X
  • Published: April 13, 2012
  • DOI: 10.1371/journal.pone.0033751

About the Authors

Peter T. Fretwell, Norman Ratcliffe, Adrian J. Fox, Andrew H. Fleming, Phil N. Trathan
British Antarctic Survey, Cambridge, United Kingdom
Michelle A. LaRue, Paul Morin, Claire Porter
Polar Geospatial Center, University in Minnesota, Minneapolis, Minnesota, United States of America
Gerald L. Kooyman
Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, United States of America
Barbara Wienecke
Australian Antarctic Division, Hobart, Tasmania, Australia

Corresponding Author

Email: ptf@bas.ac.uk

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PF NR GK CP AHF. Performed the experiments: PF ML CP. Analyzed the data: PF ML GK AJF. Contributed reagents/materials/analysis tools: PF ML PM CP. Wrote the paper: PF PT GK BW ML PM. Provided data: PM AHF GK BW.