Responses of Pygoscelis adeliae and P. papua populations to environmental changes at Isla 25 de Mayo (King George Island)
As part of a monitoring study of Adélie and Gentoo penguin colonies, birds occupying nests with eggsand chicks in crèches were counted annually from the 1995/1996 to the 2006/2007 seasons at Stranger Point, Isla 25 de Mayo (King George Island), Antarctica. During the study period the Adélie penguin...
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ftconicet:oai:ri.conicet.gov.ar:11336/103353 2023-10-09T21:47:13+02:00 Responses of Pygoscelis adeliae and P. papua populations to environmental changes at Isla 25 de Mayo (King George Island) Carlini, Alejandro R. Coria, Néstor Rubén Santos, Maria Mercedes Negrete, Javier Juares, Mariana Alejandra Daneri, Gustavo Adolfo application/pdf http://hdl.handle.net/11336/103353 eng eng Springer info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007%2Fs00300-009-0637-y info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-009-0637-y http://hdl.handle.net/11336/103353 Carlini, Alejandro R.; Coria, Néstor Rubén; Santos, Maria Mercedes; Negrete, Javier; Juares, Mariana Alejandra; et al.; Responses of Pygoscelis adeliae and P. papua populations to environmental changes at Isla 25 de Mayo (King George Island); Springer; Polar Biology; 32; 10; 10-2009; 1427-1433 0722-4060 1432-2056 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ SOUTHSHETLAND ISLANDS ENVIRONMENTAL CHANGES POPULATION DECLINE BREEDING SUCCESS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1007/s00300-009-0637-y 2023-09-24T19:05:47Z As part of a monitoring study of Adélie and Gentoo penguin colonies, birds occupying nests with eggsand chicks in crèches were counted annually from the 1995/1996 to the 2006/2007 seasons at Stranger Point, Isla 25 de Mayo (King George Island), Antarctica. During the study period the Adélie penguin population showed a decrease of 62%. The number of chicks in crèches followed a similar trend, the smallest number occurring in 2002, when it was 63% lower than in 1995/1996. In contrast, the Gentoo breeding population size increased by 68%, while chicks produced increased by 63%. Despite the opposing trends in population size between species, there was a positive relation in their interannual variation, although the extent, and for some years the direction, of the change observed always favoured Gentoo penguins. Breeding success (chicks in cre`ches/nests with eggs) fluctuated between 0.65 and 1.26 for Ade´lies and between 0.76 and 1.27 for Gentoo penguins, and did not differ significantly between species. The similar breeding success of these species suggests that the contrasting population trends observed were driven by factors operating over winter. We suggest that current changes in environmental conditions may affect adult birds of both species during the previous winter with different intensity but in a roughly similar way, but that juvenile survival of both species and thus the recruitment of new breeders might be affected differentially, with a much lower survival rate of juvenile Adélie penguins. Fil: Carlini, Alejandro R. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina Fil: Coria, Néstor Rubén. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Santos, Maria Mercedes. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del ... Article in Journal/Newspaper Antarc* Antarctica Dirección Nacional del Antártico Gentoo penguin Instituto Antártico Argentino Isla 25 de Mayo King George Island Polar Biology Pygoscelis adeliae CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) King George Island Argentino Argentina 25 de Mayo ENVELOPE(-58.000,-58.000,-62.083,-62.083) isla 25 de Mayo ENVELOPE(-58.000,-58.000,-62.083,-62.083) Coria ENVELOPE(-61.883,-61.883,-64.017,-64.017) Stranger Point ENVELOPE(-58.618,-58.618,-62.262,-62.262) Polar Biology 32 10 1427 1433 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
SOUTHSHETLAND ISLANDS ENVIRONMENTAL CHANGES POPULATION DECLINE BREEDING SUCCESS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
SOUTHSHETLAND ISLANDS ENVIRONMENTAL CHANGES POPULATION DECLINE BREEDING SUCCESS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Carlini, Alejandro R. Coria, Néstor Rubén Santos, Maria Mercedes Negrete, Javier Juares, Mariana Alejandra Daneri, Gustavo Adolfo Responses of Pygoscelis adeliae and P. papua populations to environmental changes at Isla 25 de Mayo (King George Island) |
topic_facet |
SOUTHSHETLAND ISLANDS ENVIRONMENTAL CHANGES POPULATION DECLINE BREEDING SUCCESS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
As part of a monitoring study of Adélie and Gentoo penguin colonies, birds occupying nests with eggsand chicks in crèches were counted annually from the 1995/1996 to the 2006/2007 seasons at Stranger Point, Isla 25 de Mayo (King George Island), Antarctica. During the study period the Adélie penguin population showed a decrease of 62%. The number of chicks in crèches followed a similar trend, the smallest number occurring in 2002, when it was 63% lower than in 1995/1996. In contrast, the Gentoo breeding population size increased by 68%, while chicks produced increased by 63%. Despite the opposing trends in population size between species, there was a positive relation in their interannual variation, although the extent, and for some years the direction, of the change observed always favoured Gentoo penguins. Breeding success (chicks in cre`ches/nests with eggs) fluctuated between 0.65 and 1.26 for Ade´lies and between 0.76 and 1.27 for Gentoo penguins, and did not differ significantly between species. The similar breeding success of these species suggests that the contrasting population trends observed were driven by factors operating over winter. We suggest that current changes in environmental conditions may affect adult birds of both species during the previous winter with different intensity but in a roughly similar way, but that juvenile survival of both species and thus the recruitment of new breeders might be affected differentially, with a much lower survival rate of juvenile Adélie penguins. Fil: Carlini, Alejandro R. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina Fil: Coria, Néstor Rubén. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Santos, Maria Mercedes. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del ... |
format |
Article in Journal/Newspaper |
author |
Carlini, Alejandro R. Coria, Néstor Rubén Santos, Maria Mercedes Negrete, Javier Juares, Mariana Alejandra Daneri, Gustavo Adolfo |
author_facet |
Carlini, Alejandro R. Coria, Néstor Rubén Santos, Maria Mercedes Negrete, Javier Juares, Mariana Alejandra Daneri, Gustavo Adolfo |
author_sort |
Carlini, Alejandro R. |
title |
Responses of Pygoscelis adeliae and P. papua populations to environmental changes at Isla 25 de Mayo (King George Island) |
title_short |
Responses of Pygoscelis adeliae and P. papua populations to environmental changes at Isla 25 de Mayo (King George Island) |
title_full |
Responses of Pygoscelis adeliae and P. papua populations to environmental changes at Isla 25 de Mayo (King George Island) |
title_fullStr |
Responses of Pygoscelis adeliae and P. papua populations to environmental changes at Isla 25 de Mayo (King George Island) |
title_full_unstemmed |
Responses of Pygoscelis adeliae and P. papua populations to environmental changes at Isla 25 de Mayo (King George Island) |
title_sort |
responses of pygoscelis adeliae and p. papua populations to environmental changes at isla 25 de mayo (king george island) |
publisher |
Springer |
url |
http://hdl.handle.net/11336/103353 |
long_lat |
ENVELOPE(-58.000,-58.000,-62.083,-62.083) ENVELOPE(-58.000,-58.000,-62.083,-62.083) ENVELOPE(-61.883,-61.883,-64.017,-64.017) ENVELOPE(-58.618,-58.618,-62.262,-62.262) |
geographic |
King George Island Argentino Argentina 25 de Mayo isla 25 de Mayo Coria Stranger Point |
geographic_facet |
King George Island Argentino Argentina 25 de Mayo isla 25 de Mayo Coria Stranger Point |
genre |
Antarc* Antarctica Dirección Nacional del Antártico Gentoo penguin Instituto Antártico Argentino Isla 25 de Mayo King George Island Polar Biology Pygoscelis adeliae |
genre_facet |
Antarc* Antarctica Dirección Nacional del Antártico Gentoo penguin Instituto Antártico Argentino Isla 25 de Mayo King George Island Polar Biology Pygoscelis adeliae |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007%2Fs00300-009-0637-y info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-009-0637-y http://hdl.handle.net/11336/103353 Carlini, Alejandro R.; Coria, Néstor Rubén; Santos, Maria Mercedes; Negrete, Javier; Juares, Mariana Alejandra; et al.; Responses of Pygoscelis adeliae and P. papua populations to environmental changes at Isla 25 de Mayo (King George Island); Springer; Polar Biology; 32; 10; 10-2009; 1427-1433 0722-4060 1432-2056 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1007/s00300-009-0637-y |
container_title |
Polar Biology |
container_volume |
32 |
container_issue |
10 |
container_start_page |
1427 |
op_container_end_page |
1433 |
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1779310165463400448 |