Better late than never? Interannual and seasonal variability in breeding chronology of gentoo penguins at stranger point, Antarctica
Rapid climate change recorded in the western Antarctic Peninsula confronts species with less predictable conditions in the marine and terrestrial environments. We analysed the breeding chronology and nesting site selection of gentoo penguins (Pygoscelis papua) at King George Island (Isla 25 de Mayo)...
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ftconicet:oai:ri.conicet.gov.ar:11336/77818 2023-10-09T21:47:14+02:00 Better late than never? Interannual and seasonal variability in breeding chronology of gentoo penguins at stranger point, Antarctica Juares, Mariana Alejandra Santos, Maria Mercedes Negrete, Javier Santos, María Rita Mennucci, Jorge A. Rombola, Emilce Florencia Longarzo, Maria Lucrecia Coria, Néstor Rubén Carlini, Alejandro R. application/pdf http://hdl.handle.net/11336/77818 eng eng Wiley Blackwell Publishing, Inc info:eu-repo/semantics/altIdentifier/doi/10.3402/polar.v32i0.18448 info:eu-repo/semantics/altIdentifier/url/https://polarresearch.net/index.php/polar/article/view/3113 http://hdl.handle.net/11336/77818 Juares, Mariana Alejandra; Santos, Maria Mercedes; Negrete, Javier; Santos, María Rita; Mennucci, Jorge A.; et al.; Better late than never? Interannual and seasonal variability in breeding chronology of gentoo penguins at stranger point, Antarctica; Wiley Blackwell Publishing, Inc; Polar Research; 32; SUPPL; 3-2013; 1-11 0800-0395 1751-8369 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ ANTARCTICA BREEDING DELAY BREEDING PHENOLOGY EUPHAUSIA SUPERBA PYGOSCELIS PAPUA SNOW 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/10.3402/polar.v32i0.18448 2023-09-24T19:01:38Z Rapid climate change recorded in the western Antarctic Peninsula confronts species with less predictable conditions in the marine and terrestrial environments. We analysed the breeding chronology and nesting site selection of gentoo penguins (Pygoscelis papua) at King George Island (Isla 25 de Mayo), Antarctica, during four seasons in which differences in snow presence and persistence on the ground were observed. We recorded an overall delay as well as seasonal asynchrony at the beginning of reproduction for those years with higher snow deposition. A redistribution of breeding groups was also observed. Nevertheless, the population breeding success and chicks' weight at fledging remained relatively constant, despite the delay in breeding chronology, the increased duration of foraging trips during the guard stage and the decreased weight of stomach contents during the cre'che stage. We suggest that the plasticity of their trophic biology, along with the flexibility of their breeding phenology and relocation of breeding groups, may be complementary reasons why gentoo penguin populations in the region have remained stable in spite of the changing conditions currently registered. © 2013.M.A. Juáres et al. 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 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 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 Fil: Santos, María Rita. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Dirección Nacional del Antártico Euphausia superba Gentoo penguin Instituto Antártico Argentino Isla 25 de Mayo King George Island Polar Research Pygoscelis papua CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic Antarctic Peninsula 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) Stranger Point ENVELOPE(-58.618,-58.618,-62.262,-62.262) Polar Research 32 1 18448 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
ANTARCTICA BREEDING DELAY BREEDING PHENOLOGY EUPHAUSIA SUPERBA PYGOSCELIS PAPUA SNOW https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
ANTARCTICA BREEDING DELAY BREEDING PHENOLOGY EUPHAUSIA SUPERBA PYGOSCELIS PAPUA SNOW https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Juares, Mariana Alejandra Santos, Maria Mercedes Negrete, Javier Santos, María Rita Mennucci, Jorge A. Rombola, Emilce Florencia Longarzo, Maria Lucrecia Coria, Néstor Rubén Carlini, Alejandro R. Better late than never? Interannual and seasonal variability in breeding chronology of gentoo penguins at stranger point, Antarctica |
topic_facet |
ANTARCTICA BREEDING DELAY BREEDING PHENOLOGY EUPHAUSIA SUPERBA PYGOSCELIS PAPUA SNOW https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
Rapid climate change recorded in the western Antarctic Peninsula confronts species with less predictable conditions in the marine and terrestrial environments. We analysed the breeding chronology and nesting site selection of gentoo penguins (Pygoscelis papua) at King George Island (Isla 25 de Mayo), Antarctica, during four seasons in which differences in snow presence and persistence on the ground were observed. We recorded an overall delay as well as seasonal asynchrony at the beginning of reproduction for those years with higher snow deposition. A redistribution of breeding groups was also observed. Nevertheless, the population breeding success and chicks' weight at fledging remained relatively constant, despite the delay in breeding chronology, the increased duration of foraging trips during the guard stage and the decreased weight of stomach contents during the cre'che stage. We suggest that the plasticity of their trophic biology, along with the flexibility of their breeding phenology and relocation of breeding groups, may be complementary reasons why gentoo penguin populations in the region have remained stable in spite of the changing conditions currently registered. © 2013.M.A. Juáres et al. 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 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 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 Fil: Santos, María Rita. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico ... |
format |
Article in Journal/Newspaper |
author |
Juares, Mariana Alejandra Santos, Maria Mercedes Negrete, Javier Santos, María Rita Mennucci, Jorge A. Rombola, Emilce Florencia Longarzo, Maria Lucrecia Coria, Néstor Rubén Carlini, Alejandro R. |
author_facet |
Juares, Mariana Alejandra Santos, Maria Mercedes Negrete, Javier Santos, María Rita Mennucci, Jorge A. Rombola, Emilce Florencia Longarzo, Maria Lucrecia Coria, Néstor Rubén Carlini, Alejandro R. |
author_sort |
Juares, Mariana Alejandra |
title |
Better late than never? Interannual and seasonal variability in breeding chronology of gentoo penguins at stranger point, Antarctica |
title_short |
Better late than never? Interannual and seasonal variability in breeding chronology of gentoo penguins at stranger point, Antarctica |
title_full |
Better late than never? Interannual and seasonal variability in breeding chronology of gentoo penguins at stranger point, Antarctica |
title_fullStr |
Better late than never? Interannual and seasonal variability in breeding chronology of gentoo penguins at stranger point, Antarctica |
title_full_unstemmed |
Better late than never? Interannual and seasonal variability in breeding chronology of gentoo penguins at stranger point, Antarctica |
title_sort |
better late than never? interannual and seasonal variability in breeding chronology of gentoo penguins at stranger point, antarctica |
publisher |
Wiley Blackwell Publishing, Inc |
url |
http://hdl.handle.net/11336/77818 |
long_lat |
ENVELOPE(-58.000,-58.000,-62.083,-62.083) ENVELOPE(-58.000,-58.000,-62.083,-62.083) ENVELOPE(-58.618,-58.618,-62.262,-62.262) |
geographic |
Antarctic Antarctic Peninsula King George Island Argentino Argentina 25 de Mayo isla 25 de Mayo Stranger Point |
geographic_facet |
Antarctic Antarctic Peninsula King George Island Argentino Argentina 25 de Mayo isla 25 de Mayo Stranger Point |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Dirección Nacional del Antártico Euphausia superba Gentoo penguin Instituto Antártico Argentino Isla 25 de Mayo King George Island Polar Research Pygoscelis papua |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Dirección Nacional del Antártico Euphausia superba Gentoo penguin Instituto Antártico Argentino Isla 25 de Mayo King George Island Polar Research Pygoscelis papua |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3402/polar.v32i0.18448 info:eu-repo/semantics/altIdentifier/url/https://polarresearch.net/index.php/polar/article/view/3113 http://hdl.handle.net/11336/77818 Juares, Mariana Alejandra; Santos, Maria Mercedes; Negrete, Javier; Santos, María Rita; Mennucci, Jorge A.; et al.; Better late than never? Interannual and seasonal variability in breeding chronology of gentoo penguins at stranger point, Antarctica; Wiley Blackwell Publishing, Inc; Polar Research; 32; SUPPL; 3-2013; 1-11 0800-0395 1751-8369 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/10.3402/polar.v32i0.18448 |
container_title |
Polar Research |
container_volume |
32 |
container_issue |
1 |
container_start_page |
18448 |
_version_ |
1779310172727934976 |