Effects of giant icebergs on two emperor penguin colonies in the Ross Sea, Antarctica
The arrival in January 2001 in the south-west Ross Sea of two giant icebergs, C16 and B15A, subsequently had dramatic affects on two emperor penguin colonies. B15A collided with the north-west tongue of the Ross Ice Shelf at Cape Crozier, Ross Island, in the following months and destroyed the pengui...
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Language: | English |
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Online Access: | http://dx.doi.org/10.1017/s0954102007000065 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102007000065 |
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crcambridgeupr:10.1017/s0954102007000065 2024-03-03T08:38:44+00:00 Effects of giant icebergs on two emperor penguin colonies in the Ross Sea, Antarctica Kooyman, Gerald L. Ainley, David G. Ballard, Grant Ponganis, Paul J. 2007 http://dx.doi.org/10.1017/s0954102007000065 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102007000065 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 19, issue 1, page 31-38 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2007 crcambridgeupr https://doi.org/10.1017/s0954102007000065 2024-02-08T08:43:15Z The arrival in January 2001 in the south-west Ross Sea of two giant icebergs, C16 and B15A, subsequently had dramatic affects on two emperor penguin colonies. B15A collided with the north-west tongue of the Ross Ice Shelf at Cape Crozier, Ross Island, in the following months and destroyed the penguins' nesting habitat. The colony totally failed in 2001, and years after, with the icebergs still in place, exhibited reduced production that ranged from 0 to 40% of the 1201 chicks produced in 2000. At Beaufort Island, 70 km NW of Crozier, chick production declined to 6% of the 2000 count by 2004. Collisions with the Ross Ice Shelf at Cape Crozier caused incubating adults to be crushed, trapped in ravines, or to abandon the colony and, since 2001, to occupy poorer habitat. The icebergs separated Beaufort Island from the Ross Sea Polynya, formerly an easy route to feeding and wintering areas. This episode has provided a glimpse of events which have probably occurred infrequently since the West Antarctic Ice Sheet began to retreat 12 000 years ago. The results allow assessment of recovery rates for one colony decimated by both adult and chick mortality, and the other colony by adult abandonment and chick mortality. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Antarctica Beaufort Island Ice Sheet Ice Shelf Iceberg* Ross Ice Shelf Ross Island Ross Sea Cambridge University Press Antarctic Ross Sea West Antarctic Ice Sheet Ross Island Ross Ice Shelf Crozier ENVELOPE(169.400,169.400,-77.517,-77.517) Cape Crozier ENVELOPE(169.400,169.400,-77.517,-77.517) Beaufort Island ENVELOPE(166.833,166.833,-76.933,-76.933) Antarctic Science 19 1 31 38 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Kooyman, Gerald L. Ainley, David G. Ballard, Grant Ponganis, Paul J. Effects of giant icebergs on two emperor penguin colonies in the Ross Sea, Antarctica |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
The arrival in January 2001 in the south-west Ross Sea of two giant icebergs, C16 and B15A, subsequently had dramatic affects on two emperor penguin colonies. B15A collided with the north-west tongue of the Ross Ice Shelf at Cape Crozier, Ross Island, in the following months and destroyed the penguins' nesting habitat. The colony totally failed in 2001, and years after, with the icebergs still in place, exhibited reduced production that ranged from 0 to 40% of the 1201 chicks produced in 2000. At Beaufort Island, 70 km NW of Crozier, chick production declined to 6% of the 2000 count by 2004. Collisions with the Ross Ice Shelf at Cape Crozier caused incubating adults to be crushed, trapped in ravines, or to abandon the colony and, since 2001, to occupy poorer habitat. The icebergs separated Beaufort Island from the Ross Sea Polynya, formerly an easy route to feeding and wintering areas. This episode has provided a glimpse of events which have probably occurred infrequently since the West Antarctic Ice Sheet began to retreat 12 000 years ago. The results allow assessment of recovery rates for one colony decimated by both adult and chick mortality, and the other colony by adult abandonment and chick mortality. |
format |
Article in Journal/Newspaper |
author |
Kooyman, Gerald L. Ainley, David G. Ballard, Grant Ponganis, Paul J. |
author_facet |
Kooyman, Gerald L. Ainley, David G. Ballard, Grant Ponganis, Paul J. |
author_sort |
Kooyman, Gerald L. |
title |
Effects of giant icebergs on two emperor penguin colonies in the Ross Sea, Antarctica |
title_short |
Effects of giant icebergs on two emperor penguin colonies in the Ross Sea, Antarctica |
title_full |
Effects of giant icebergs on two emperor penguin colonies in the Ross Sea, Antarctica |
title_fullStr |
Effects of giant icebergs on two emperor penguin colonies in the Ross Sea, Antarctica |
title_full_unstemmed |
Effects of giant icebergs on two emperor penguin colonies in the Ross Sea, Antarctica |
title_sort |
effects of giant icebergs on two emperor penguin colonies in the ross sea, antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
2007 |
url |
http://dx.doi.org/10.1017/s0954102007000065 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102007000065 |
long_lat |
ENVELOPE(169.400,169.400,-77.517,-77.517) ENVELOPE(169.400,169.400,-77.517,-77.517) ENVELOPE(166.833,166.833,-76.933,-76.933) |
geographic |
Antarctic Ross Sea West Antarctic Ice Sheet Ross Island Ross Ice Shelf Crozier Cape Crozier Beaufort Island |
geographic_facet |
Antarctic Ross Sea West Antarctic Ice Sheet Ross Island Ross Ice Shelf Crozier Cape Crozier Beaufort Island |
genre |
Antarc* Antarctic Antarctic Science Antarctica Beaufort Island Ice Sheet Ice Shelf Iceberg* Ross Ice Shelf Ross Island Ross Sea |
genre_facet |
Antarc* Antarctic Antarctic Science Antarctica Beaufort Island Ice Sheet Ice Shelf Iceberg* Ross Ice Shelf Ross Island Ross Sea |
op_source |
Antarctic Science volume 19, issue 1, page 31-38 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102007000065 |
container_title |
Antarctic Science |
container_volume |
19 |
container_issue |
1 |
container_start_page |
31 |
op_container_end_page |
38 |
_version_ |
1792507176423522304 |