Post-Fledging Dispersal of King Penguins (Aptenodytes patagonicus) from Two Breeding Sites in the South Atlantic
Most studies concerning the foraging ecology of marine vertebrates are limited to breeding adults, although other life history stages might comprise half the total population. For penguins, little is known about juvenile dispersal, a period when individuals may be susceptible to increased mortality...
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ftconicet:oai:ri.conicet.gov.ar:11336/96289 2023-10-09T21:46:00+02:00 Post-Fledging Dispersal of King Penguins (Aptenodytes patagonicus) from Two Breeding Sites in the South Atlantic Pütz, Klemens Trathan, Phil N. Pedrana, Julieta Collins, Martin A. Poncet, Sally Lüthi, Benno application/pdf http://hdl.handle.net/11336/96289 eng eng Public Library of Science info:eu-repo/semantics/altIdentifier/url/https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0097164 info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0097164 http://hdl.handle.net/11336/96289 Pütz, Klemens; Trathan, Phil N.; Pedrana, Julieta; Collins, Martin A.; Poncet, Sally; et al.; Post-Fledging Dispersal of King Penguins (Aptenodytes patagonicus) from Two Breeding Sites in the South Atlantic; Public Library of Science; Plos One; 9; 5; 5-2014; 1-12 1932-6203 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ King penguin Satellite transmitters South Atlantic Ocean Antarctic Polar Front 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/10.1371/journal.pone.0097164 2023-09-24T18:52:46Z Most studies concerning the foraging ecology of marine vertebrates are limited to breeding adults, although other life history stages might comprise half the total population. For penguins, little is known about juvenile dispersal, a period when individuals may be susceptible to increased mortality given their naïve foraging behaviour. Therefore, we used satellite telemetry to study king penguin fledglings (n = 18) from two sites in the Southwest Atlantic in December 2007. The two sites differed with respect to climate and proximity to the Antarctic Polar Front (APF), a key oceanographic feature generally thought to be important for king penguin foraging success. Accordingly, birds from both sites foraged predominantly in the vicinity of the APF. Eight king penguins were tracked for periods greater than 120 days; seven of these (three from the Falkland Islands and four from South Georgia) migrated into the Pacific. Only one bird from the Falkland Islands moved into the Indian Ocean, visiting the northern limit of the winter pack-ice. Three others from the Falkland Islands migrated to the eastern coast of Tierra del Fuego before travelling south. Derived tracking parameters describing their migratory behaviour showed no significant differences between sites. Nevertheless, generalized linear habitat modelling revealed that juveniles from the Falkland Islands spent more time in comparatively shallow waters with low sea surface temperature, sea surface height and chlorophyll variability. Birds from South Georgia spent more time in deeper waters with low sea surface temperature and sea surface height, but high concentrations of chlorophyll. Our results indicate that inexperienced king penguins, irrespective of the location of their natal site in relation to the position of the APF, develop their foraging skills progressively over time, including specific adaptations to the environment around their prospective breeding site. Fil: Pütz, Klemens. Antarctic Research Trust; Alemania Fil: Trathan, Phil N. Natural ... Article in Journal/Newspaper Antarc* Antarctic King Penguins South Atlantic Ocean Tierra del Fuego CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic The Antarctic Pacific Indian PLoS ONE 9 5 e97164 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
King penguin Satellite transmitters South Atlantic Ocean Antarctic Polar Front https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
King penguin Satellite transmitters South Atlantic Ocean Antarctic Polar Front https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Pütz, Klemens Trathan, Phil N. Pedrana, Julieta Collins, Martin A. Poncet, Sally Lüthi, Benno Post-Fledging Dispersal of King Penguins (Aptenodytes patagonicus) from Two Breeding Sites in the South Atlantic |
topic_facet |
King penguin Satellite transmitters South Atlantic Ocean Antarctic Polar Front https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
Most studies concerning the foraging ecology of marine vertebrates are limited to breeding adults, although other life history stages might comprise half the total population. For penguins, little is known about juvenile dispersal, a period when individuals may be susceptible to increased mortality given their naïve foraging behaviour. Therefore, we used satellite telemetry to study king penguin fledglings (n = 18) from two sites in the Southwest Atlantic in December 2007. The two sites differed with respect to climate and proximity to the Antarctic Polar Front (APF), a key oceanographic feature generally thought to be important for king penguin foraging success. Accordingly, birds from both sites foraged predominantly in the vicinity of the APF. Eight king penguins were tracked for periods greater than 120 days; seven of these (three from the Falkland Islands and four from South Georgia) migrated into the Pacific. Only one bird from the Falkland Islands moved into the Indian Ocean, visiting the northern limit of the winter pack-ice. Three others from the Falkland Islands migrated to the eastern coast of Tierra del Fuego before travelling south. Derived tracking parameters describing their migratory behaviour showed no significant differences between sites. Nevertheless, generalized linear habitat modelling revealed that juveniles from the Falkland Islands spent more time in comparatively shallow waters with low sea surface temperature, sea surface height and chlorophyll variability. Birds from South Georgia spent more time in deeper waters with low sea surface temperature and sea surface height, but high concentrations of chlorophyll. Our results indicate that inexperienced king penguins, irrespective of the location of their natal site in relation to the position of the APF, develop their foraging skills progressively over time, including specific adaptations to the environment around their prospective breeding site. Fil: Pütz, Klemens. Antarctic Research Trust; Alemania Fil: Trathan, Phil N. Natural ... |
format |
Article in Journal/Newspaper |
author |
Pütz, Klemens Trathan, Phil N. Pedrana, Julieta Collins, Martin A. Poncet, Sally Lüthi, Benno |
author_facet |
Pütz, Klemens Trathan, Phil N. Pedrana, Julieta Collins, Martin A. Poncet, Sally Lüthi, Benno |
author_sort |
Pütz, Klemens |
title |
Post-Fledging Dispersal of King Penguins (Aptenodytes patagonicus) from Two Breeding Sites in the South Atlantic |
title_short |
Post-Fledging Dispersal of King Penguins (Aptenodytes patagonicus) from Two Breeding Sites in the South Atlantic |
title_full |
Post-Fledging Dispersal of King Penguins (Aptenodytes patagonicus) from Two Breeding Sites in the South Atlantic |
title_fullStr |
Post-Fledging Dispersal of King Penguins (Aptenodytes patagonicus) from Two Breeding Sites in the South Atlantic |
title_full_unstemmed |
Post-Fledging Dispersal of King Penguins (Aptenodytes patagonicus) from Two Breeding Sites in the South Atlantic |
title_sort |
post-fledging dispersal of king penguins (aptenodytes patagonicus) from two breeding sites in the south atlantic |
publisher |
Public Library of Science |
url |
http://hdl.handle.net/11336/96289 |
geographic |
Antarctic The Antarctic Pacific Indian |
geographic_facet |
Antarctic The Antarctic Pacific Indian |
genre |
Antarc* Antarctic King Penguins South Atlantic Ocean Tierra del Fuego |
genre_facet |
Antarc* Antarctic King Penguins South Atlantic Ocean Tierra del Fuego |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0097164 info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0097164 http://hdl.handle.net/11336/96289 Pütz, Klemens; Trathan, Phil N.; Pedrana, Julieta; Collins, Martin A.; Poncet, Sally; et al.; Post-Fledging Dispersal of King Penguins (Aptenodytes patagonicus) from Two Breeding Sites in the South Atlantic; Public Library of Science; Plos One; 9; 5; 5-2014; 1-12 1932-6203 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/10.1371/journal.pone.0097164 |
container_title |
PLoS ONE |
container_volume |
9 |
container_issue |
5 |
container_start_page |
e97164 |
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1779321659796226048 |