Sex-specific foraging strategies of Adélie penguins (Pygoscelis adeliae): Females forage further and on more krill than males in the Antarctic Peninsula
Sexual segregation characterises many animal communities, and in seabirds (including penguins), foraging strategies are known to vary with sex. The forging strategies of Adélie penguins (Pygoscelis adeliae) have been studied to some extent in some Antarctic locations; however, sex-based differences...
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Online Access: | http://hdl.handle.net/10261/197936 https://doi.org/10.1007/s00300-018-2395-1 https://doi.org/10.13039/501100003329 |
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ftcsic:oai:digital.csic.es:10261/197936 2024-02-11T09:58:03+01:00 Sex-specific foraging strategies of Adélie penguins (Pygoscelis adeliae): Females forage further and on more krill than males in the Antarctic Peninsula Colominas-Ciuró, Roger Santos, Mercedes Coria, Néstor Barbosa, Andrés Ministerio de Economía y Competitividad (España) 2018 http://hdl.handle.net/10261/197936 https://doi.org/10.1007/s00300-018-2395-1 https://doi.org/10.13039/501100003329 unknown Springer Nature #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2015-64720-R http://dx.doi.org/10.1007/s00300-018-2395-1 Sí Polar Biology 41: 2635-2641 (2018) 0722-4060 http://hdl.handle.net/10261/197936 doi:10.1007/s00300-018-2395-1 1432-2056 http://dx.doi.org/10.13039/501100003329 none Adélie penguins Antarctic Peninsula Diet Foraging habitat Sexual segregation Stable isotope analyses (SIA) artículo http://purl.org/coar/resource_type/c_6501 2018 ftcsic https://doi.org/10.1007/s00300-018-2395-110.13039/501100003329 2024-01-16T10:47:07Z Sexual segregation characterises many animal communities, and in seabirds (including penguins), foraging strategies are known to vary with sex. The forging strategies of Adélie penguins (Pygoscelis adeliae) have been studied to some extent in some Antarctic locations; however, sex-based differences in foraging in this species have only been studied in depth in East Antarctica. Therefore, in this study, we aim to determine whether sexual segregation drives the foraging ecology [in terms of foraging habitat and diet based on analysis of stable carbon (δC) and nitrogen (δN) isotopes, respectively] of Adélie penguins in the Antarctic Peninsula (Hope Bay) during the breeding season. Our results showed strong sexual isotopic spatial segregation. Females forage for more krill than fish in more offshore, pelagic waters in contrast to males which feed equally on both items in more inshore, benthic waters. These results suggest a link between foraging habitat and diet that differs according to sex, similar to that found in East Antarctica. Given these similarities, we hypothesise that the foraging ecology of Adélie penguins varies with sex throughout the Antarctic continent. Nevertheless, further research in other locations such as in western Antarctica is needed to confirm this hypothesis. This study was funded by the Spanish Ministry of Economy and Competitiveness (CTM2011-24427, CTM2015-64720-R and BES2012-059299). Peer Reviewed Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica East Antarctica Polar Biology Pygoscelis adeliae Digital.CSIC (Spanish National Research Council) Antarctic Antarctic Peninsula East Antarctica Hope Bay ENVELOPE(-57.038,-57.038,-63.403,-63.403) The Antarctic Polar Biology 41 12 2635 2641 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
topic |
Adélie penguins Antarctic Peninsula Diet Foraging habitat Sexual segregation Stable isotope analyses (SIA) |
spellingShingle |
Adélie penguins Antarctic Peninsula Diet Foraging habitat Sexual segregation Stable isotope analyses (SIA) Colominas-Ciuró, Roger Santos, Mercedes Coria, Néstor Barbosa, Andrés Sex-specific foraging strategies of Adélie penguins (Pygoscelis adeliae): Females forage further and on more krill than males in the Antarctic Peninsula |
topic_facet |
Adélie penguins Antarctic Peninsula Diet Foraging habitat Sexual segregation Stable isotope analyses (SIA) |
description |
Sexual segregation characterises many animal communities, and in seabirds (including penguins), foraging strategies are known to vary with sex. The forging strategies of Adélie penguins (Pygoscelis adeliae) have been studied to some extent in some Antarctic locations; however, sex-based differences in foraging in this species have only been studied in depth in East Antarctica. Therefore, in this study, we aim to determine whether sexual segregation drives the foraging ecology [in terms of foraging habitat and diet based on analysis of stable carbon (δC) and nitrogen (δN) isotopes, respectively] of Adélie penguins in the Antarctic Peninsula (Hope Bay) during the breeding season. Our results showed strong sexual isotopic spatial segregation. Females forage for more krill than fish in more offshore, pelagic waters in contrast to males which feed equally on both items in more inshore, benthic waters. These results suggest a link between foraging habitat and diet that differs according to sex, similar to that found in East Antarctica. Given these similarities, we hypothesise that the foraging ecology of Adélie penguins varies with sex throughout the Antarctic continent. Nevertheless, further research in other locations such as in western Antarctica is needed to confirm this hypothesis. This study was funded by the Spanish Ministry of Economy and Competitiveness (CTM2011-24427, CTM2015-64720-R and BES2012-059299). Peer Reviewed |
author2 |
Ministerio de Economía y Competitividad (España) |
format |
Article in Journal/Newspaper |
author |
Colominas-Ciuró, Roger Santos, Mercedes Coria, Néstor Barbosa, Andrés |
author_facet |
Colominas-Ciuró, Roger Santos, Mercedes Coria, Néstor Barbosa, Andrés |
author_sort |
Colominas-Ciuró, Roger |
title |
Sex-specific foraging strategies of Adélie penguins (Pygoscelis adeliae): Females forage further and on more krill than males in the Antarctic Peninsula |
title_short |
Sex-specific foraging strategies of Adélie penguins (Pygoscelis adeliae): Females forage further and on more krill than males in the Antarctic Peninsula |
title_full |
Sex-specific foraging strategies of Adélie penguins (Pygoscelis adeliae): Females forage further and on more krill than males in the Antarctic Peninsula |
title_fullStr |
Sex-specific foraging strategies of Adélie penguins (Pygoscelis adeliae): Females forage further and on more krill than males in the Antarctic Peninsula |
title_full_unstemmed |
Sex-specific foraging strategies of Adélie penguins (Pygoscelis adeliae): Females forage further and on more krill than males in the Antarctic Peninsula |
title_sort |
sex-specific foraging strategies of adélie penguins (pygoscelis adeliae): females forage further and on more krill than males in the antarctic peninsula |
publisher |
Springer Nature |
publishDate |
2018 |
url |
http://hdl.handle.net/10261/197936 https://doi.org/10.1007/s00300-018-2395-1 https://doi.org/10.13039/501100003329 |
long_lat |
ENVELOPE(-57.038,-57.038,-63.403,-63.403) |
geographic |
Antarctic Antarctic Peninsula East Antarctica Hope Bay The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula East Antarctica Hope Bay The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica East Antarctica Polar Biology Pygoscelis adeliae |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica East Antarctica Polar Biology Pygoscelis adeliae |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2015-64720-R http://dx.doi.org/10.1007/s00300-018-2395-1 Sí Polar Biology 41: 2635-2641 (2018) 0722-4060 http://hdl.handle.net/10261/197936 doi:10.1007/s00300-018-2395-1 1432-2056 http://dx.doi.org/10.13039/501100003329 |
op_rights |
none |
op_doi |
https://doi.org/10.1007/s00300-018-2395-110.13039/501100003329 |
container_title |
Polar Biology |
container_volume |
41 |
container_issue |
12 |
container_start_page |
2635 |
op_container_end_page |
2641 |
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1790593619681345536 |