Adélie penguin population changes at Stranger Point: 19 years of monitoring
Abstract The Adélie penguin ( Pygoscelis adeliae ) breeding population at Stranger Point, King George Island (25 de Mayo), increased in number from 1965/66 until 1980/81 after which it started to decrease almost continuously up to the present. A significant decrease in the number of breeding pairs a...
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Online Access: | http://dx.doi.org/10.1017/s0954102015000152 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102015000152 |
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crcambridgeupr:10.1017/s0954102015000152 2024-03-03T08:38:26+00:00 Adélie penguin population changes at Stranger Point: 19 years of monitoring Juáres, Mariana A. Santos, Mercedes Negrete, Javier Mennucci, Jorge A. Perchivale, Pablo J. Casaux, Ricardo Coria, Néstor R. 2015 http://dx.doi.org/10.1017/s0954102015000152 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102015000152 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 27, issue 5, page 455-461 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2015 crcambridgeupr https://doi.org/10.1017/s0954102015000152 2024-02-08T08:24:59Z Abstract The Adélie penguin ( Pygoscelis adeliae ) breeding population at Stranger Point, King George Island (25 de Mayo), increased in number from 1965/66 until 1980/81 after which it started to decrease almost continuously up to the present. A significant decrease in the number of breeding pairs and chicks crèched was observed between 1995/96 and 2013/14 (75% and 78%, respectively), although the rate of this decrease has slowed since 2006/07. Over the last seven years, larger interannual fluctuations were recorded in the number of breeding pairs and chicks in crèches, as well in the breeding success. The values for the index of breeding success during 2007/08, 2009/10 and 2012/13 were low and this parameter showed higher temporal fluctuation in the period 2007/08 to 2013/14. The reduction in breeding success and the number of chicks reared to crèche will unfavourably impact on future population size at Stranger Point through the reduction of new recruits. Although Adélie penguin population trends on the Antarctic Peninsula are linked to the marine environment variability (i.e. reduction in sea ice affecting the availability of prey), breeding success is also influenced by the amount of snow fall which has increased in recent years. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctic Science King George Island Pygoscelis adeliae Sea ice Cambridge University Press Antarctic The Antarctic Antarctic Peninsula King George Island 25 de Mayo ENVELOPE(-58.000,-58.000,-62.083,-62.083) Stranger Point ENVELOPE(-58.618,-58.618,-62.262,-62.262) Antarctic Science 27 5 455 461 |
institution |
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 Juáres, Mariana A. Santos, Mercedes Negrete, Javier Mennucci, Jorge A. Perchivale, Pablo J. Casaux, Ricardo Coria, Néstor R. Adélie penguin population changes at Stranger Point: 19 years of monitoring |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract The Adélie penguin ( Pygoscelis adeliae ) breeding population at Stranger Point, King George Island (25 de Mayo), increased in number from 1965/66 until 1980/81 after which it started to decrease almost continuously up to the present. A significant decrease in the number of breeding pairs and chicks crèched was observed between 1995/96 and 2013/14 (75% and 78%, respectively), although the rate of this decrease has slowed since 2006/07. Over the last seven years, larger interannual fluctuations were recorded in the number of breeding pairs and chicks in crèches, as well in the breeding success. The values for the index of breeding success during 2007/08, 2009/10 and 2012/13 were low and this parameter showed higher temporal fluctuation in the period 2007/08 to 2013/14. The reduction in breeding success and the number of chicks reared to crèche will unfavourably impact on future population size at Stranger Point through the reduction of new recruits. Although Adélie penguin population trends on the Antarctic Peninsula are linked to the marine environment variability (i.e. reduction in sea ice affecting the availability of prey), breeding success is also influenced by the amount of snow fall which has increased in recent years. |
format |
Article in Journal/Newspaper |
author |
Juáres, Mariana A. Santos, Mercedes Negrete, Javier Mennucci, Jorge A. Perchivale, Pablo J. Casaux, Ricardo Coria, Néstor R. |
author_facet |
Juáres, Mariana A. Santos, Mercedes Negrete, Javier Mennucci, Jorge A. Perchivale, Pablo J. Casaux, Ricardo Coria, Néstor R. |
author_sort |
Juáres, Mariana A. |
title |
Adélie penguin population changes at Stranger Point: 19 years of monitoring |
title_short |
Adélie penguin population changes at Stranger Point: 19 years of monitoring |
title_full |
Adélie penguin population changes at Stranger Point: 19 years of monitoring |
title_fullStr |
Adélie penguin population changes at Stranger Point: 19 years of monitoring |
title_full_unstemmed |
Adélie penguin population changes at Stranger Point: 19 years of monitoring |
title_sort |
adélie penguin population changes at stranger point: 19 years of monitoring |
publisher |
Cambridge University Press (CUP) |
publishDate |
2015 |
url |
http://dx.doi.org/10.1017/s0954102015000152 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102015000152 |
long_lat |
ENVELOPE(-58.000,-58.000,-62.083,-62.083) ENVELOPE(-58.618,-58.618,-62.262,-62.262) |
geographic |
Antarctic The Antarctic Antarctic Peninsula King George Island 25 de Mayo Stranger Point |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula King George Island 25 de Mayo Stranger Point |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctic Science King George Island Pygoscelis adeliae Sea ice |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctic Science King George Island Pygoscelis adeliae Sea ice |
op_source |
Antarctic Science volume 27, issue 5, page 455-461 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102015000152 |
container_title |
Antarctic Science |
container_volume |
27 |
container_issue |
5 |
container_start_page |
455 |
op_container_end_page |
461 |
_version_ |
1792506829106839552 |