Three-dimensional use of marine habitats by juvenile emperor penguins Aptenodytes forsteri during post-natal dispersal
International audience The juvenile phase is poorly known in Antarctic seabirds, despite being a critical period for individual survival. To better understand the ecology of young Antarctic seabirds, we surveyed for the first time the three-dimensional habitat use of six juvenile emperor penguins du...
Published in: | Antarctic Science |
---|---|
Main Authors: | , , , |
Other Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2013
|
Subjects: | |
Online Access: | https://doi.org/10.1017/S0954102012001198 https://hal.archives-ouvertes.fr/hal-00795497 |
id |
fttriple:oai:gotriple.eu:10670/1.6kvhx9 |
---|---|
record_format |
openpolar |
spelling |
fttriple:oai:gotriple.eu:10670/1.6kvhx9 2023-05-15T14:05:17+02:00 Three-dimensional use of marine habitats by juvenile emperor penguins Aptenodytes forsteri during post-natal dispersal Thiebot, Jean-Baptiste Lescroel, Amélie Barbraud, Christophe Bost, Charles-André Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) Biodiversité et gestion des territoires EA 7316 2013-01-01 https://doi.org/10.1017/S0954102012001198 https://hal.archives-ouvertes.fr/hal-00795497 en eng HAL CCSD Cambridge University Press (CUP) hal-00795497 doi:10.1017/S0954102012001198 10670/1.6kvhx9 https://hal.archives-ouvertes.fr/hal-00795497 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0954-1020 EISSN: 1365-2079 Antarctic Science Antarctic Science, Cambridge University Press (CUP), 2013, 25 (4), pp.536-544. ⟨10.1017/S0954102012001198⟩ diving foraging ecology immaturity period migration seabirds Southern Ocean tracking geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2013 fttriple https://doi.org/10.1017/S0954102012001198 2023-01-22T18:52:48Z International audience The juvenile phase is poorly known in Antarctic seabirds, despite being a critical period for individual survival. To better understand the ecology of young Antarctic seabirds, we surveyed for the first time the three-dimensional habitat use of six juvenile emperor penguins during their post-natal dispersal from Terre Ade'lie, using bio-telemetric tags. The tags transmitted location and activity data for nearly 100 days on average. One individual was followed during eight months and covered 7000 km, which represents the longest continuous individual survey for the species. Studied individuals first dispersed away from Antarctica, up to 54.78S and 1250 km north of the pack-ice edge, in the Polar Frontal Zone. This highlighted a much looser association with sea ice and a greater at-sea range compared to previous knowledge on breeding adults. Juvenile penguins then moved southwards close to the extending pack-ice during autumn and winter. Over the survey duration, juveniles showed a contrasting use of marine habitats, with less mobility, less time underwater, and shallower dives (generally not over 50-100 m) in the pack ice, versus greater distances travelled, more time spent underwater, especially deeper than 100m (up to 250-300 m) in open water. We discuss hypotheses which could explain the northward exodus of juvenile emperor penguins across contrasting habitats. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Antarctica Aptenodytes forsteri Emperor penguins Sea ice Southern Ocean Unknown Antarctic Southern Ocean Antarctic Science 25 4 536 544 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
diving foraging ecology immaturity period migration seabirds Southern Ocean tracking geo envir |
spellingShingle |
diving foraging ecology immaturity period migration seabirds Southern Ocean tracking geo envir Thiebot, Jean-Baptiste Lescroel, Amélie Barbraud, Christophe Bost, Charles-André Three-dimensional use of marine habitats by juvenile emperor penguins Aptenodytes forsteri during post-natal dispersal |
topic_facet |
diving foraging ecology immaturity period migration seabirds Southern Ocean tracking geo envir |
description |
International audience The juvenile phase is poorly known in Antarctic seabirds, despite being a critical period for individual survival. To better understand the ecology of young Antarctic seabirds, we surveyed for the first time the three-dimensional habitat use of six juvenile emperor penguins during their post-natal dispersal from Terre Ade'lie, using bio-telemetric tags. The tags transmitted location and activity data for nearly 100 days on average. One individual was followed during eight months and covered 7000 km, which represents the longest continuous individual survey for the species. Studied individuals first dispersed away from Antarctica, up to 54.78S and 1250 km north of the pack-ice edge, in the Polar Frontal Zone. This highlighted a much looser association with sea ice and a greater at-sea range compared to previous knowledge on breeding adults. Juvenile penguins then moved southwards close to the extending pack-ice during autumn and winter. Over the survey duration, juveniles showed a contrasting use of marine habitats, with less mobility, less time underwater, and shallower dives (generally not over 50-100 m) in the pack ice, versus greater distances travelled, more time spent underwater, especially deeper than 100m (up to 250-300 m) in open water. We discuss hypotheses which could explain the northward exodus of juvenile emperor penguins across contrasting habitats. |
author2 |
Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) Biodiversité et gestion des territoires EA 7316 |
format |
Article in Journal/Newspaper |
author |
Thiebot, Jean-Baptiste Lescroel, Amélie Barbraud, Christophe Bost, Charles-André |
author_facet |
Thiebot, Jean-Baptiste Lescroel, Amélie Barbraud, Christophe Bost, Charles-André |
author_sort |
Thiebot, Jean-Baptiste |
title |
Three-dimensional use of marine habitats by juvenile emperor penguins Aptenodytes forsteri during post-natal dispersal |
title_short |
Three-dimensional use of marine habitats by juvenile emperor penguins Aptenodytes forsteri during post-natal dispersal |
title_full |
Three-dimensional use of marine habitats by juvenile emperor penguins Aptenodytes forsteri during post-natal dispersal |
title_fullStr |
Three-dimensional use of marine habitats by juvenile emperor penguins Aptenodytes forsteri during post-natal dispersal |
title_full_unstemmed |
Three-dimensional use of marine habitats by juvenile emperor penguins Aptenodytes forsteri during post-natal dispersal |
title_sort |
three-dimensional use of marine habitats by juvenile emperor penguins aptenodytes forsteri during post-natal dispersal |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://doi.org/10.1017/S0954102012001198 https://hal.archives-ouvertes.fr/hal-00795497 |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Antarctic Science Antarctica Aptenodytes forsteri Emperor penguins Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Science Antarctica Aptenodytes forsteri Emperor penguins Sea ice Southern Ocean |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0954-1020 EISSN: 1365-2079 Antarctic Science Antarctic Science, Cambridge University Press (CUP), 2013, 25 (4), pp.536-544. ⟨10.1017/S0954102012001198⟩ |
op_relation |
hal-00795497 doi:10.1017/S0954102012001198 10670/1.6kvhx9 https://hal.archives-ouvertes.fr/hal-00795497 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1017/S0954102012001198 |
container_title |
Antarctic Science |
container_volume |
25 |
container_issue |
4 |
container_start_page |
536 |
op_container_end_page |
544 |
_version_ |
1766277100793233408 |