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Aerial photographs and ground counts for assessing breeding success of Adelie penguin (Pygoscelis adeliae) rookeries on Ross Island
Entry ID: K122_2004_2005_NZ_4

Abstract: In conjunction with aerial photographs of the colonies ground truth counts were made since the 1983-1984 season at the Ross Island colonies. The number of occupied nests, nests with eggs, nests with both adults present and total penguins at the colony were censused to be able to check for accuracy of the counts from aerial photographs and to assess the breeding status and condition of the birds for that year. Since 1990, ground counts of chicks at each rookey were conducted in late January to measure breeding success (number of chicks/breeding pair). Approximately 100 chicks were selected randomly at each site and they had their weight and flipper length measured to calculate a chick condition index which is comparable between years and between the rookeries.
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Description: Project co-ordinator homepage. Please contact Phil Lyver for more information regarding data.
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Geographic Coverage
Spatial coordinates   
  N: -77.22   S: -77.53   E: 169.55   W: 166.3

Temporal Coverage
Start Date: 1983-11-24
ISO Topic Category
start here with 1 in span in link Ancillary Description
here with 2 in span in link Ancillary Description
here with 3 in span in link Ancillary Description
Quality The data has been collected by Landcare Research and is held at this organisation. Please contact the investigator for more information.
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Data Center
Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand Supplemental Info
Data Center URL: http://www.antarcticanz.govt.nz/

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Fax: +64 3 358 0211
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Contact Address:
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Country: New Zealand
Phone: +64 3 321 9999
Fax: +64 3 321 9998
Email: lyverp at landcareresearch.co.nz
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Landcare Research
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City: Lincoln
Postal Code: 7640
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Wilson, P.R. Ainley, D.G. Nur, N. Jacobs, S.S. Barton, K.J. Ballard, G. Comisco, J.C. (2001). Adélie penguin population change in the Pacific sector of Antarctica: relation to sea-ice extent and the Antarctic Circumpolar Current. Marine ecology progress series 213: 301-309.

Greenfield, L.G. Wilson, K.J. (1991). Adélie penguin colony estimations from aerial photography and ground counts. Polar record 27(161): 129-130.
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Creation and Review Dates
DIF Creation Date: 2005-09-22
Last DIF Revision Date: 2017-08-23

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