Early diving behaviour in juvenile penguins: improvement or selection processes
International audience The early life stage of long-lived species is critical to the viability of population, but is poorly understood. Longitudinal studies are needed to test whether juveniles are less efficient foragers than adults as has been hypothesized. We measured changes in the diving behavi...
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ftccsdartic:oai:HAL:hal-01503429v1 2023-05-15T15:59:32+02:00 Early diving behaviour in juvenile penguins: improvement or selection processes Orgeret, Florian Weimerskirch, Henri Bost, Charles-André Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) 2016-08-02 https://hal.archives-ouvertes.fr/hal-01503429 https://doi.org/10.1098/rsbl.2016.0490 en eng HAL CCSD Royal Society, The info:eu-repo/semantics/altIdentifier/doi/10.1098/rsbl.2016.0490 hal-01503429 https://hal.archives-ouvertes.fr/hal-01503429 doi:10.1098/rsbl.2016.0490 ISSN: 1744-9561 Biology Letters https://hal.archives-ouvertes.fr/hal-01503429 Biology Letters, Royal Society, The, 2016, 12, pp.20160490. ⟨10.1098/rsbl.2016.0490⟩ tracking bio-logging juveniles ontogeny diving behaviour penguins [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2016 ftccsdartic https://doi.org/10.1098/rsbl.2016.0490 2021-11-07T03:55:55Z International audience The early life stage of long-lived species is critical to the viability of population, but is poorly understood. Longitudinal studies are needed to test whether juveniles are less efficient foragers than adults as has been hypothesized. We measured changes in the diving behaviour of 17 one-year-old king penguins Aptenodytes patagonicus at Crozet Islands (subantartic archipelago) during their first months at sea, using miniaturized tags that transmitted diving activity in real time. We also equipped five non-breeder adults with the same tags for comparison. The data on foraging performance revealed two groups of juveniles. The first group made shallower and shorter dives that may be indicative of early mortality while the second group progressively increased their diving depths and durations, and survived the first months at sea. This surviving group of juveniles required the same recovery durations as adults, but typically performed shallower and shorter dives. There is thereby a relationship between improved diving behaviour and survival in young penguins. This long period of improving diving performance in the juvenile life stage is potentially a critical period for the survival of deep avian divers and may have implications for their ability to adapt to environmental change. Article in Journal/Newspaper Crozet Islands King Penguins Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Old King ENVELOPE(-55.731,-55.731,53.133,53.133) Biology Letters 12 8 20160490 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
tracking bio-logging juveniles ontogeny diving behaviour penguins [SDE]Environmental Sciences |
spellingShingle |
tracking bio-logging juveniles ontogeny diving behaviour penguins [SDE]Environmental Sciences Orgeret, Florian Weimerskirch, Henri Bost, Charles-André Early diving behaviour in juvenile penguins: improvement or selection processes |
topic_facet |
tracking bio-logging juveniles ontogeny diving behaviour penguins [SDE]Environmental Sciences |
description |
International audience The early life stage of long-lived species is critical to the viability of population, but is poorly understood. Longitudinal studies are needed to test whether juveniles are less efficient foragers than adults as has been hypothesized. We measured changes in the diving behaviour of 17 one-year-old king penguins Aptenodytes patagonicus at Crozet Islands (subantartic archipelago) during their first months at sea, using miniaturized tags that transmitted diving activity in real time. We also equipped five non-breeder adults with the same tags for comparison. The data on foraging performance revealed two groups of juveniles. The first group made shallower and shorter dives that may be indicative of early mortality while the second group progressively increased their diving depths and durations, and survived the first months at sea. This surviving group of juveniles required the same recovery durations as adults, but typically performed shallower and shorter dives. There is thereby a relationship between improved diving behaviour and survival in young penguins. This long period of improving diving performance in the juvenile life stage is potentially a critical period for the survival of deep avian divers and may have implications for their ability to adapt to environmental change. |
author2 |
Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
format |
Article in Journal/Newspaper |
author |
Orgeret, Florian Weimerskirch, Henri Bost, Charles-André |
author_facet |
Orgeret, Florian Weimerskirch, Henri Bost, Charles-André |
author_sort |
Orgeret, Florian |
title |
Early diving behaviour in juvenile penguins: improvement or selection processes |
title_short |
Early diving behaviour in juvenile penguins: improvement or selection processes |
title_full |
Early diving behaviour in juvenile penguins: improvement or selection processes |
title_fullStr |
Early diving behaviour in juvenile penguins: improvement or selection processes |
title_full_unstemmed |
Early diving behaviour in juvenile penguins: improvement or selection processes |
title_sort |
early diving behaviour in juvenile penguins: improvement or selection processes |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal.archives-ouvertes.fr/hal-01503429 https://doi.org/10.1098/rsbl.2016.0490 |
long_lat |
ENVELOPE(-55.731,-55.731,53.133,53.133) |
geographic |
Old King |
geographic_facet |
Old King |
genre |
Crozet Islands King Penguins |
genre_facet |
Crozet Islands King Penguins |
op_source |
ISSN: 1744-9561 Biology Letters https://hal.archives-ouvertes.fr/hal-01503429 Biology Letters, Royal Society, The, 2016, 12, pp.20160490. ⟨10.1098/rsbl.2016.0490⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1098/rsbl.2016.0490 hal-01503429 https://hal.archives-ouvertes.fr/hal-01503429 doi:10.1098/rsbl.2016.0490 |
op_doi |
https://doi.org/10.1098/rsbl.2016.0490 |
container_title |
Biology Letters |
container_volume |
12 |
container_issue |
8 |
container_start_page |
20160490 |
_version_ |
1766395482965278720 |