Effects of individual pre-fledging traits and environmental conditions on return patterns in juvenile king penguins.
International audience Despite the importance of early life stages in individuals' life history and population dynamics, very few studies have focused on the constraints to which these juvenile traits are subjected. Based on 10 years of automatic monitoring of over 2500 individuals, we present...
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Online Access: | https://hal.archives-ouvertes.fr/hal-00614549 https://doi.org/10.1371/journal.pone.0020407 |
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ftccsdartic:oai:HAL:hal-00614549v1 2023-05-15T17:03:52+02:00 Effects of individual pre-fledging traits and environmental conditions on return patterns in juvenile king penguins. Saraux, Claire Viblanc, Vincent A Hanuise, Nicolas Le Maho, Yvon Le Bohec, Céline Département Ecologie, Physiologie et Ethologie (DEPE-IPHC) Institut Pluridisciplinaire Hubert Curien (IPHC) Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) AgroParisTech Centre for Ecological and Evolutionary Synthesis (CEES) Department of Biosciences Oslo Faculty of Mathematics and Natural Sciences Oslo University of Oslo (UiO)-University of Oslo (UiO)-Faculty of Mathematics and Natural Sciences Oslo University of Oslo (UiO)-University of Oslo (UiO) 2011 https://hal.archives-ouvertes.fr/hal-00614549 https://doi.org/10.1371/journal.pone.0020407 en eng HAL CCSD Public Library of Science info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0020407 info:eu-repo/semantics/altIdentifier/pmid/21687715 hal-00614549 https://hal.archives-ouvertes.fr/hal-00614549 doi:10.1371/journal.pone.0020407 PUBMED: 21687715 ISSN: 1932-6203 EISSN: 1932-6203 PLoS ONE https://hal.archives-ouvertes.fr/hal-00614549 PLoS ONE, Public Library of Science, 2011, 6 (6), pp.e20407. ⟨10.1371/journal.pone.0020407⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2011 ftccsdartic https://doi.org/10.1371/journal.pone.0020407 2021-10-31T12:10:33Z International audience Despite the importance of early life stages in individuals' life history and population dynamics, very few studies have focused on the constraints to which these juvenile traits are subjected. Based on 10 years of automatic monitoring of over 2500 individuals, we present the first study on the effects of environmental conditions and individual pre-fledging traits on the post-fledging return of non-banded king penguins to their natal colony. Juvenile king penguins returned exclusively within one of the three austral summers following their departure. A key finding is that return rates (range 68-87%) were much higher than previously assumed for this species, importantly meaning that juvenile survival is very close to that of adults. Such high figures suggest little juvenile dispersal, and selection occurring mostly prior to fledging in king penguins. Pre-fledging conditions had a strong quadratic impact on juvenile return rates. As expected, cohorts reared under very unfavourable years (as inferred by the breeding success of the colony) exhibited low return rates but surprisingly, so did those fledged under very favourable conditions. Juvenile sojourns away from the colony were shorter under warm conditions and subsequent return rates higher, suggesting a positive effect of climate warming. The longer the post-fledging trip (1, 2 or 3 years), the earlier in the summer birds returned to their natal colony and the longer they stayed before leaving for the winter journey. The presence of juveniles in the colony was more than twice the duration required for moulting purposes, yet none attempted breeding in the year of their first return. Juvenile presence in the colony may be important for acquiring knowledge on the social and physical colonial environment and may play an important part in the learning process of mating behaviour. Further studies are required to investigate its potential implications on other life-history traits such as recruitment age. Article in Journal/Newspaper King Penguins Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Austral PLoS ONE 6 6 e20407 |
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 |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Saraux, Claire Viblanc, Vincent A Hanuise, Nicolas Le Maho, Yvon Le Bohec, Céline Effects of individual pre-fledging traits and environmental conditions on return patterns in juvenile king penguins. |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience Despite the importance of early life stages in individuals' life history and population dynamics, very few studies have focused on the constraints to which these juvenile traits are subjected. Based on 10 years of automatic monitoring of over 2500 individuals, we present the first study on the effects of environmental conditions and individual pre-fledging traits on the post-fledging return of non-banded king penguins to their natal colony. Juvenile king penguins returned exclusively within one of the three austral summers following their departure. A key finding is that return rates (range 68-87%) were much higher than previously assumed for this species, importantly meaning that juvenile survival is very close to that of adults. Such high figures suggest little juvenile dispersal, and selection occurring mostly prior to fledging in king penguins. Pre-fledging conditions had a strong quadratic impact on juvenile return rates. As expected, cohorts reared under very unfavourable years (as inferred by the breeding success of the colony) exhibited low return rates but surprisingly, so did those fledged under very favourable conditions. Juvenile sojourns away from the colony were shorter under warm conditions and subsequent return rates higher, suggesting a positive effect of climate warming. The longer the post-fledging trip (1, 2 or 3 years), the earlier in the summer birds returned to their natal colony and the longer they stayed before leaving for the winter journey. The presence of juveniles in the colony was more than twice the duration required for moulting purposes, yet none attempted breeding in the year of their first return. Juvenile presence in the colony may be important for acquiring knowledge on the social and physical colonial environment and may play an important part in the learning process of mating behaviour. Further studies are required to investigate its potential implications on other life-history traits such as recruitment age. |
author2 |
Département Ecologie, Physiologie et Ethologie (DEPE-IPHC) Institut Pluridisciplinaire Hubert Curien (IPHC) Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) AgroParisTech Centre for Ecological and Evolutionary Synthesis (CEES) Department of Biosciences Oslo Faculty of Mathematics and Natural Sciences Oslo University of Oslo (UiO)-University of Oslo (UiO)-Faculty of Mathematics and Natural Sciences Oslo University of Oslo (UiO)-University of Oslo (UiO) |
format |
Article in Journal/Newspaper |
author |
Saraux, Claire Viblanc, Vincent A Hanuise, Nicolas Le Maho, Yvon Le Bohec, Céline |
author_facet |
Saraux, Claire Viblanc, Vincent A Hanuise, Nicolas Le Maho, Yvon Le Bohec, Céline |
author_sort |
Saraux, Claire |
title |
Effects of individual pre-fledging traits and environmental conditions on return patterns in juvenile king penguins. |
title_short |
Effects of individual pre-fledging traits and environmental conditions on return patterns in juvenile king penguins. |
title_full |
Effects of individual pre-fledging traits and environmental conditions on return patterns in juvenile king penguins. |
title_fullStr |
Effects of individual pre-fledging traits and environmental conditions on return patterns in juvenile king penguins. |
title_full_unstemmed |
Effects of individual pre-fledging traits and environmental conditions on return patterns in juvenile king penguins. |
title_sort |
effects of individual pre-fledging traits and environmental conditions on return patterns in juvenile king penguins. |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://hal.archives-ouvertes.fr/hal-00614549 https://doi.org/10.1371/journal.pone.0020407 |
geographic |
Austral |
geographic_facet |
Austral |
genre |
King Penguins |
genre_facet |
King Penguins |
op_source |
ISSN: 1932-6203 EISSN: 1932-6203 PLoS ONE https://hal.archives-ouvertes.fr/hal-00614549 PLoS ONE, Public Library of Science, 2011, 6 (6), pp.e20407. ⟨10.1371/journal.pone.0020407⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0020407 info:eu-repo/semantics/altIdentifier/pmid/21687715 hal-00614549 https://hal.archives-ouvertes.fr/hal-00614549 doi:10.1371/journal.pone.0020407 PUBMED: 21687715 |
op_doi |
https://doi.org/10.1371/journal.pone.0020407 |
container_title |
PLoS ONE |
container_volume |
6 |
container_issue |
6 |
container_start_page |
e20407 |
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1766057811315261440 |