The impact of the giant iceberg B09B on population size and breeding success of Adélie penguins in Commonwealth Bay, Antarctica
The arrival of iceberg B09B in Commonwealth Bay, East Antarctica, and subsequent fast ice expansion has dramatically increased the distance Adélie penguins (Pygoscelis adeliae) breeding at Cape Denison must travel in search of food. This has provided a natural experiment to investigate the impact of...
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Cambridge University Press (CUP): STM Journals
2016
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Online Access: | http://hdl.handle.net/1959.4/unsworks_37750 https://doi.org/10.1017/S0954102015000644 |
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ftunswworks:oai:unsworks.library.unsw.edu.au:1959.4/unsworks_37750 2024-05-12T07:55:39+00:00 The impact of the giant iceberg B09B on population size and breeding success of Adélie penguins in Commonwealth Bay, Antarctica Wilson, KJ Turney, C Fogwill, C Blair, E 2016-02-02 http://hdl.handle.net/1959.4/unsworks_37750 https://doi.org/10.1017/S0954102015000644 unknown Cambridge University Press (CUP): STM Journals http://purl.org/au-research/grants/arc/FL100100195 http://purl.org/au-research/grants/arc/DP130104156 http://purl.org/au-research/grants/arc/FT120100004 http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=10171606&fulltextType=RA&fileId=S0954102015000644 http://hdl.handle.net/1959.4/unsworks_37750 https://doi.org/10.1017/S0954102015000644 metadata only access http://purl.org/coar/access_right/c_14cb CC-BY-NC-ND https://creativecommons.org/licenses/by-nc-nd/4.0/ urn:ISSN:1365-2079 Antarctic Science, 28, 3, 1-7 anzsrc-for: 04 Earth Sciences anzsrc-for: 05 Environmental Sciences anzsrc-for: 06 Biological Sciences journal article http://purl.org/coar/resource_type/c_6501 2016 ftunswworks https://doi.org/10.1017/S0954102015000644 2024-04-17T15:18:05Z The arrival of iceberg B09B in Commonwealth Bay, East Antarctica, and subsequent fast ice expansion has dramatically increased the distance Adélie penguins (Pygoscelis adeliae) breeding at Cape Denison must travel in search of food. This has provided a natural experiment to investigate the impact of iceberg stranding events and sea ice expansion along the East Antarctic coast. As part of the Australasian Antarctic Expedition 2013–14, the Adélie penguin colony at Cape Denison was censused to compare to historic counts. Whilst some 5520 pairs still bred at Cape Denison there has been an order of magnitude decline in Adélie numbers in the area in comparison to the first counts a century ago and, critically, recent estimates based on satellite images and a census in 1997. In contrast, an Adélie population on the eastern fringe of Commonwealth Bay just 8 km from the fast ice edge was thriving, indicating the arrival of B09B and fast ice expansion was probably responsible for the observed recent population decline. In conclusion, the Cape Denison population could be extirpated within 20 years unless B09B relocates or the now perennial fast ice within the bay breaks out. Our results have important implications for wider East Antarctic if the current increasing sea ice trend continues. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Antarctica East Antarctica Iceberg* Pygoscelis adeliae Sea ice UNSW Sydney (The University of New South Wales): UNSWorks Antarctic East Antarctica Commonwealth Bay ENVELOPE(142.500,142.500,-67.000,-67.000) Denison ENVELOPE(142.667,142.667,-67.000,-67.000) Cape Denison ENVELOPE(110.449,110.449,-66.307,-66.307) Antarctic Science 28 3 187 193 |
institution |
Open Polar |
collection |
UNSW Sydney (The University of New South Wales): UNSWorks |
op_collection_id |
ftunswworks |
language |
unknown |
topic |
anzsrc-for: 04 Earth Sciences anzsrc-for: 05 Environmental Sciences anzsrc-for: 06 Biological Sciences |
spellingShingle |
anzsrc-for: 04 Earth Sciences anzsrc-for: 05 Environmental Sciences anzsrc-for: 06 Biological Sciences Wilson, KJ Turney, C Fogwill, C Blair, E The impact of the giant iceberg B09B on population size and breeding success of Adélie penguins in Commonwealth Bay, Antarctica |
topic_facet |
anzsrc-for: 04 Earth Sciences anzsrc-for: 05 Environmental Sciences anzsrc-for: 06 Biological Sciences |
description |
The arrival of iceberg B09B in Commonwealth Bay, East Antarctica, and subsequent fast ice expansion has dramatically increased the distance Adélie penguins (Pygoscelis adeliae) breeding at Cape Denison must travel in search of food. This has provided a natural experiment to investigate the impact of iceberg stranding events and sea ice expansion along the East Antarctic coast. As part of the Australasian Antarctic Expedition 2013–14, the Adélie penguin colony at Cape Denison was censused to compare to historic counts. Whilst some 5520 pairs still bred at Cape Denison there has been an order of magnitude decline in Adélie numbers in the area in comparison to the first counts a century ago and, critically, recent estimates based on satellite images and a census in 1997. In contrast, an Adélie population on the eastern fringe of Commonwealth Bay just 8 km from the fast ice edge was thriving, indicating the arrival of B09B and fast ice expansion was probably responsible for the observed recent population decline. In conclusion, the Cape Denison population could be extirpated within 20 years unless B09B relocates or the now perennial fast ice within the bay breaks out. Our results have important implications for wider East Antarctic if the current increasing sea ice trend continues. |
format |
Article in Journal/Newspaper |
author |
Wilson, KJ Turney, C Fogwill, C Blair, E |
author_facet |
Wilson, KJ Turney, C Fogwill, C Blair, E |
author_sort |
Wilson, KJ |
title |
The impact of the giant iceberg B09B on population size and breeding success of Adélie penguins in Commonwealth Bay, Antarctica |
title_short |
The impact of the giant iceberg B09B on population size and breeding success of Adélie penguins in Commonwealth Bay, Antarctica |
title_full |
The impact of the giant iceberg B09B on population size and breeding success of Adélie penguins in Commonwealth Bay, Antarctica |
title_fullStr |
The impact of the giant iceberg B09B on population size and breeding success of Adélie penguins in Commonwealth Bay, Antarctica |
title_full_unstemmed |
The impact of the giant iceberg B09B on population size and breeding success of Adélie penguins in Commonwealth Bay, Antarctica |
title_sort |
impact of the giant iceberg b09b on population size and breeding success of adélie penguins in commonwealth bay, antarctica |
publisher |
Cambridge University Press (CUP): STM Journals |
publishDate |
2016 |
url |
http://hdl.handle.net/1959.4/unsworks_37750 https://doi.org/10.1017/S0954102015000644 |
long_lat |
ENVELOPE(142.500,142.500,-67.000,-67.000) ENVELOPE(142.667,142.667,-67.000,-67.000) ENVELOPE(110.449,110.449,-66.307,-66.307) |
geographic |
Antarctic East Antarctica Commonwealth Bay Denison Cape Denison |
geographic_facet |
Antarctic East Antarctica Commonwealth Bay Denison Cape Denison |
genre |
Antarc* Antarctic Antarctic Science Antarctica East Antarctica Iceberg* Pygoscelis adeliae Sea ice |
genre_facet |
Antarc* Antarctic Antarctic Science Antarctica East Antarctica Iceberg* Pygoscelis adeliae Sea ice |
op_source |
urn:ISSN:1365-2079 Antarctic Science, 28, 3, 1-7 |
op_relation |
http://purl.org/au-research/grants/arc/FL100100195 http://purl.org/au-research/grants/arc/DP130104156 http://purl.org/au-research/grants/arc/FT120100004 http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=10171606&fulltextType=RA&fileId=S0954102015000644 http://hdl.handle.net/1959.4/unsworks_37750 https://doi.org/10.1017/S0954102015000644 |
op_rights |
metadata only access http://purl.org/coar/access_right/c_14cb CC-BY-NC-ND https://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1017/S0954102015000644 |
container_title |
Antarctic Science |
container_volume |
28 |
container_issue |
3 |
container_start_page |
187 |
op_container_end_page |
193 |
_version_ |
1798835474109825024 |