Breeding status affects the hormonal and metabolic response to acute stress in a long-lived seabird, the king penguin
International audience Stress responses are suggested to physiologically underlie parental decisions promoting the redirection ofbehaviour away from offspring care when survival is jeopardized (e.g., when facing a predator). Besidesthis classical view, the ‘‘brood-value hypothesis” suggests that par...
Published in: | General and Comparative Endocrinology |
---|---|
Main Authors: | , , , |
Other Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2016
|
Subjects: | |
Online Access: | https://hal.archives-ouvertes.fr/hal-01390563 https://doi.org/10.1016/j.ygcen.2016.07.021 |
id |
ftccsdartic:oai:HAL:hal-01390563v1 |
---|---|
record_format |
openpolar |
spelling |
ftccsdartic:oai:HAL:hal-01390563v1 2023-05-15T17:03:56+02:00 Breeding status affects the hormonal and metabolic response to acute stress in a long-lived seabird, the king penguin Viblanc, Vincent A. Gineste, Benoît Robin, Jean-Patrice Groscolas, René 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) IPEV;CNRS-INEE 2016 https://hal.archives-ouvertes.fr/hal-01390563 https://doi.org/10.1016/j.ygcen.2016.07.021 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ygcen.2016.07.021 hal-01390563 https://hal.archives-ouvertes.fr/hal-01390563 doi:10.1016/j.ygcen.2016.07.021 ISSN: 0016-6480 EISSN: 1095-6840 General and Comparative Endocrinology https://hal.archives-ouvertes.fr/hal-01390563 General and Comparative Endocrinology, Elsevier, 2016, 236, pp.139 - 145. ⟨10.1016/j.ygcen.2016.07.021⟩ Glucocorticoids Brood-value hypothesis Lipid metabolism Parental decisions Life history trade-offs Reproductive value [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2016 ftccsdartic https://doi.org/10.1016/j.ygcen.2016.07.021 2021-04-24T23:48:20Z International audience Stress responses are suggested to physiologically underlie parental decisions promoting the redirection ofbehaviour away from offspring care when survival is jeopardized (e.g., when facing a predator). Besidesthis classical view, the ‘‘brood-value hypothesis” suggests that parents’ stress responses may be adaptivelyattenuated to increase fitness, ensuring continued breeding when the relative value of the broodis high. Here, we test the brood-value hypothesis in breeding king penguins (Aptenodytes patagonicus),long-lived seabirds for which the energy commitment to reproduction is high. We subjected birds atdifferent breeding stages (courtship, incubation and chick brooding) to an acute 30-min capture stressand measured their hormonal (corticosterone, CORT) and metabolic (non-esterified fatty acid, NEFA)responses to stress. We found that CORT responses were markedly attenuated in chick-brooding birdswhen compared to earlier stages of breeding (courtship and incubation). In addition, NEFA responsesappeared to be rapidly attenuated in incubating and brooding birds, but a progressive increase inNEFA plasma levels in courting birds suggested energy mobilization to deal with the threat. Our resultssupport the idea that stress responses may constitute an important life-history mechanism mediatingparental reproductive decisions in relation to their expected fitness outcome Article in Journal/Newspaper King Penguins Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) General and Comparative Endocrinology 236 139 145 |
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 |
Glucocorticoids Brood-value hypothesis Lipid metabolism Parental decisions Life history trade-offs Reproductive value [SDE]Environmental Sciences |
spellingShingle |
Glucocorticoids Brood-value hypothesis Lipid metabolism Parental decisions Life history trade-offs Reproductive value [SDE]Environmental Sciences Viblanc, Vincent A. Gineste, Benoît Robin, Jean-Patrice Groscolas, René Breeding status affects the hormonal and metabolic response to acute stress in a long-lived seabird, the king penguin |
topic_facet |
Glucocorticoids Brood-value hypothesis Lipid metabolism Parental decisions Life history trade-offs Reproductive value [SDE]Environmental Sciences |
description |
International audience Stress responses are suggested to physiologically underlie parental decisions promoting the redirection ofbehaviour away from offspring care when survival is jeopardized (e.g., when facing a predator). Besidesthis classical view, the ‘‘brood-value hypothesis” suggests that parents’ stress responses may be adaptivelyattenuated to increase fitness, ensuring continued breeding when the relative value of the broodis high. Here, we test the brood-value hypothesis in breeding king penguins (Aptenodytes patagonicus),long-lived seabirds for which the energy commitment to reproduction is high. We subjected birds atdifferent breeding stages (courtship, incubation and chick brooding) to an acute 30-min capture stressand measured their hormonal (corticosterone, CORT) and metabolic (non-esterified fatty acid, NEFA)responses to stress. We found that CORT responses were markedly attenuated in chick-brooding birdswhen compared to earlier stages of breeding (courtship and incubation). In addition, NEFA responsesappeared to be rapidly attenuated in incubating and brooding birds, but a progressive increase inNEFA plasma levels in courting birds suggested energy mobilization to deal with the threat. Our resultssupport the idea that stress responses may constitute an important life-history mechanism mediatingparental reproductive decisions in relation to their expected fitness outcome |
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) IPEV;CNRS-INEE |
format |
Article in Journal/Newspaper |
author |
Viblanc, Vincent A. Gineste, Benoît Robin, Jean-Patrice Groscolas, René |
author_facet |
Viblanc, Vincent A. Gineste, Benoît Robin, Jean-Patrice Groscolas, René |
author_sort |
Viblanc, Vincent A. |
title |
Breeding status affects the hormonal and metabolic response to acute stress in a long-lived seabird, the king penguin |
title_short |
Breeding status affects the hormonal and metabolic response to acute stress in a long-lived seabird, the king penguin |
title_full |
Breeding status affects the hormonal and metabolic response to acute stress in a long-lived seabird, the king penguin |
title_fullStr |
Breeding status affects the hormonal and metabolic response to acute stress in a long-lived seabird, the king penguin |
title_full_unstemmed |
Breeding status affects the hormonal and metabolic response to acute stress in a long-lived seabird, the king penguin |
title_sort |
breeding status affects the hormonal and metabolic response to acute stress in a long-lived seabird, the king penguin |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal.archives-ouvertes.fr/hal-01390563 https://doi.org/10.1016/j.ygcen.2016.07.021 |
genre |
King Penguins |
genre_facet |
King Penguins |
op_source |
ISSN: 0016-6480 EISSN: 1095-6840 General and Comparative Endocrinology https://hal.archives-ouvertes.fr/hal-01390563 General and Comparative Endocrinology, Elsevier, 2016, 236, pp.139 - 145. ⟨10.1016/j.ygcen.2016.07.021⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ygcen.2016.07.021 hal-01390563 https://hal.archives-ouvertes.fr/hal-01390563 doi:10.1016/j.ygcen.2016.07.021 |
op_doi |
https://doi.org/10.1016/j.ygcen.2016.07.021 |
container_title |
General and Comparative Endocrinology |
container_volume |
236 |
container_start_page |
139 |
op_container_end_page |
145 |
_version_ |
1766057922940370944 |