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dc.contributor.author
Carlini, Alejandro R.  
dc.contributor.author
Coria, Néstor Rubén  
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Santos, Maria Mercedes  
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Negrete, Javier  
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Juares, Mariana Alejandra  
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Daneri, Gustavo Adolfo  
dc.date.available
2020-04-22T20:12:35Z  
dc.date.issued
2009-10  
dc.identifier.citation
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  
dc.identifier.issn
0722-4060  
dc.identifier.uri
http://hdl.handle.net/11336/103353  
dc.description.abstract
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.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Springer  
dc.rights
info:eu-repo/semantics/restrictedAccess  
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https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
SOUTHSHETLAND ISLANDS  
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ENVIRONMENTAL CHANGES  
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POPULATION DECLINE  
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BREEDING SUCCESS  
dc.subject.classification
Ecología  
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Ciencias Biológicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Responses of Pygoscelis adeliae and P. papua populations to environmental changes at Isla 25 de Mayo (King George Island)  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2020-04-22T14:41:27Z  
dc.identifier.eissn
1432-2056  
dc.journal.volume
32  
dc.journal.number
10  
dc.journal.pagination
1427-1433  
dc.journal.pais
Alemania  
dc.journal.ciudad
Berlín  
dc.description.fil
Fil: Carlini, Alejandro R.. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina  
dc.description.fil
Fil: Coria, Néstor Rubén. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina  
dc.description.fil
Fil: Santos, Maria Mercedes. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina  
dc.description.fil
Fil: Negrete, Javier. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina  
dc.description.fil
Fil: Juares, Mariana Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina  
dc.description.fil
Fil: Daneri, Gustavo Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina  
dc.journal.title
Polar Biology  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007%2Fs00300-009-0637-y  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1007/s00300-009-0637-y