The impact of the giant iceberg B09B on population size and breeding success of Adélie penguins in Commonwealth Bay, Antarctica
Abstract 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 th...
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Online Access: | http://dx.doi.org/10.1017/s0954102015000644 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102015000644 |
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crcambridgeupr:10.1017/s0954102015000644 2024-03-03T08:39:16+00:00 The impact of the giant iceberg B09B on population size and breeding success of Adélie penguins in Commonwealth Bay, Antarctica Wilson, Kerry-Jayne Turney, Chris S.M. Fogwill, Christopher J. Blair, Estelle 2016 http://dx.doi.org/10.1017/s0954102015000644 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102015000644 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 28, issue 3, page 187-193 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2016 crcambridgeupr https://doi.org/10.1017/s0954102015000644 2024-02-08T08:31:37Z Abstract 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 Cambridge University Press 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 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Wilson, Kerry-Jayne Turney, Chris S.M. Fogwill, Christopher J. Blair, Estelle The impact of the giant iceberg B09B on population size and breeding success of Adélie penguins in Commonwealth Bay, Antarctica |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract 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, Kerry-Jayne Turney, Chris S.M. Fogwill, Christopher J. Blair, Estelle |
author_facet |
Wilson, Kerry-Jayne Turney, Chris S.M. Fogwill, Christopher J. Blair, Estelle |
author_sort |
Wilson, Kerry-Jayne |
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) |
publishDate |
2016 |
url |
http://dx.doi.org/10.1017/s0954102015000644 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/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 |
Antarctic Science volume 28, issue 3, page 187-193 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
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 |
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1792494712271142912 |