State-dependent decisions during the fledging process of king penguin chicks
International audience In birds, the chick's physical state at nest departure is critical for survival, especially for seabirds that shift from a terrestrial to a marine life. The timing of this life history transition should therefore be finely tuned by proximate factors reflecting the relativ...
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ftccsdartic:oai:HAL:hal-00411350v1 2024-02-27T08:42:32+00:00 State-dependent decisions during the fledging process of king penguin chicks Corbel, Hélène Morlon, Francis Geiger, Sylvie Groscolas, René Département Ecologie, Physiologie et Ethologie (DEPE-IPHC) Institut Pluridisciplinaire Hubert Curien (IPHC) Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS) 2009 https://hal.science/hal-00411350 https://doi.org/10.1016/j.anbehav.2009.06.019 en eng HAL CCSD Elsevier Masson info:eu-repo/semantics/altIdentifier/doi/10.1016/j.anbehav.2009.06.019 hal-00411350 https://hal.science/hal-00411350 doi:10.1016/j.anbehav.2009.06.019 ISSN: 0003-3472 EISSN: 1095-8282 Animal Behaviour https://hal.science/hal-00411350 Animal Behaviour, 2009, 78, pp.829-838. ⟨10.1016/j.anbehav.2009.06.019⟩ Aptenodytes patagonicus body condition colony departure food provisioning king penguin locomotor activity moult parent–offspring conflict [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] info:eu-repo/semantics/article Journal articles 2009 ftccsdartic https://doi.org/10.1016/j.anbehav.2009.06.019 2024-01-28T00:44:33Z International audience In birds, the chick's physical state at nest departure is critical for survival, especially for seabirds that shift from a terrestrial to a marine life. The timing of this life history transition should therefore be finely tuned by proximate factors reflecting the relative influence of parents and chicks. Using king penguins, Aptenodytes patagonicus, as a model, we investigated how food provisioning and chick developmental status and/or body condition interact with chick fledging behaviour to optimize the physical state at colony departure. During the month preceding colony departure, movements, developmental status and body condition were compared between naturally and experimentally fed chicks. Parents stopped feeding their moulting, obese chick on average 16 days before colony departure and no offspring anorexia was observed. All chicks left their feeding site at the time of moult end, indicating that complete feather development is a prerequisite for departing. The time between moult end and colony departure reduced both intra- and intergroup variation in body condition at departure, suggesting that this condition was optimized in terms of a trade-off between fat stores and buoyancy. After moult end, chicks increased their locomotor activity and energy expenditure, which contributes to the regulation of body condition. Our results indicate that the cessation of parental feeding does not trigger colony departure. Rather, the timing of departure depends on the chick's physical state, regardless of its recent feeding history. Thus, in king penguins, the parental decision to desert the chick seems to reflect a compromise between the offspring's body condition and its developmental status. Article in Journal/Newspaper King Penguins Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Animal Behaviour 78 4 829 838 |
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 |
Aptenodytes patagonicus body condition colony departure food provisioning king penguin locomotor activity moult parent–offspring conflict [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] |
spellingShingle |
Aptenodytes patagonicus body condition colony departure food provisioning king penguin locomotor activity moult parent–offspring conflict [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] Corbel, Hélène Morlon, Francis Geiger, Sylvie Groscolas, René State-dependent decisions during the fledging process of king penguin chicks |
topic_facet |
Aptenodytes patagonicus body condition colony departure food provisioning king penguin locomotor activity moult parent–offspring conflict [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] |
description |
International audience In birds, the chick's physical state at nest departure is critical for survival, especially for seabirds that shift from a terrestrial to a marine life. The timing of this life history transition should therefore be finely tuned by proximate factors reflecting the relative influence of parents and chicks. Using king penguins, Aptenodytes patagonicus, as a model, we investigated how food provisioning and chick developmental status and/or body condition interact with chick fledging behaviour to optimize the physical state at colony departure. During the month preceding colony departure, movements, developmental status and body condition were compared between naturally and experimentally fed chicks. Parents stopped feeding their moulting, obese chick on average 16 days before colony departure and no offspring anorexia was observed. All chicks left their feeding site at the time of moult end, indicating that complete feather development is a prerequisite for departing. The time between moult end and colony departure reduced both intra- and intergroup variation in body condition at departure, suggesting that this condition was optimized in terms of a trade-off between fat stores and buoyancy. After moult end, chicks increased their locomotor activity and energy expenditure, which contributes to the regulation of body condition. Our results indicate that the cessation of parental feeding does not trigger colony departure. Rather, the timing of departure depends on the chick's physical state, regardless of its recent feeding history. Thus, in king penguins, the parental decision to desert the chick seems to reflect a compromise between the offspring's body condition and its developmental status. |
author2 |
Département Ecologie, Physiologie et Ethologie (DEPE-IPHC) Institut Pluridisciplinaire Hubert Curien (IPHC) Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Corbel, Hélène Morlon, Francis Geiger, Sylvie Groscolas, René |
author_facet |
Corbel, Hélène Morlon, Francis Geiger, Sylvie Groscolas, René |
author_sort |
Corbel, Hélène |
title |
State-dependent decisions during the fledging process of king penguin chicks |
title_short |
State-dependent decisions during the fledging process of king penguin chicks |
title_full |
State-dependent decisions during the fledging process of king penguin chicks |
title_fullStr |
State-dependent decisions during the fledging process of king penguin chicks |
title_full_unstemmed |
State-dependent decisions during the fledging process of king penguin chicks |
title_sort |
state-dependent decisions during the fledging process of king penguin chicks |
publisher |
HAL CCSD |
publishDate |
2009 |
url |
https://hal.science/hal-00411350 https://doi.org/10.1016/j.anbehav.2009.06.019 |
genre |
King Penguins |
genre_facet |
King Penguins |
op_source |
ISSN: 0003-3472 EISSN: 1095-8282 Animal Behaviour https://hal.science/hal-00411350 Animal Behaviour, 2009, 78, pp.829-838. ⟨10.1016/j.anbehav.2009.06.019⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.anbehav.2009.06.019 hal-00411350 https://hal.science/hal-00411350 doi:10.1016/j.anbehav.2009.06.019 |
op_doi |
https://doi.org/10.1016/j.anbehav.2009.06.019 |
container_title |
Animal Behaviour |
container_volume |
78 |
container_issue |
4 |
container_start_page |
829 |
op_container_end_page |
838 |
_version_ |
1792050281622536192 |