Modulation of prolactin but not corticosterone responses to stress in relation to parental effort in a long-lived bird
International audience We tested the hypothesis that parental effort modulates the magnitude of corticosterone and prolactin responses to stress in a long-lived bird, the Black-legged kittiwake (Rissa tridactyla). To do so, we compared corticosterone and prolactin responses to capture/restraint stre...
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ftccsdartic:oai:HAL:hal-00187644v1 2023-05-15T15:44:58+02:00 Modulation of prolactin but not corticosterone responses to stress in relation to parental effort in a long-lived bird Chastel, Olivier Lacroix, André Weimerskirch, Henri Gabrielsen, Geir Wing Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) 2005 https://hal.archives-ouvertes.fr/hal-00187644 en eng HAL CCSD Elsevier hal-00187644 https://hal.archives-ouvertes.fr/hal-00187644 ISSN: 0018-506X EISSN: 1095-6867 Hormones and Behavior https://hal.archives-ouvertes.fr/hal-00187644 Hormones and Behavior, Elsevier, 2005, 47, pp.459-466 Parental effort Stress response Corticosterone Prolactin Long-lived bird Kittiwake Rissa tridactyla [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.ES]Environmental Sciences/Environmental and Society [SDE.MCG]Environmental Sciences/Global Changes info:eu-repo/semantics/article Journal articles 2005 ftccsdartic 2021-12-19T04:17:12Z International audience We tested the hypothesis that parental effort modulates the magnitude of corticosterone and prolactin responses to stress in a long-lived bird, the Black-legged kittiwake (Rissa tridactyla). To do so, we compared corticosterone and prolactin responses to capture/restraint stress between chick-rearing birds and failed breeders (no parental effort). We predicted that (1) the increase in plasma corticosterone levels in response to stress should be lower in chick-rearing birds, (2) the decrease in plasma prolactin levels in response to stress should be lower in chick-rearing birds, and (3) as both sexes care for the chick, there should be no sex difference in the hormonal response to stress. Baseline plasma corticosterone and prolactin levels were higher in chick-rearing birds and were not influenced by body condition. Failed breeders were in better condition than chick-rearing individuals. Corticosterone response to stress was unaffected by parental effort as both chickrearing and failed birds exhibited a robust corticosterone increase. Prolactin response to stress was however clearly influenced by parental effort: chick-rearing birds showed a modest 9% prolactin decrease whereas in failed birds prolactin concentrations fell by 41%. Body condition did not influence hormonal responses to stress. When facing stressful condition, breeding kittiwakes attenuate their prolactin response to stress while enhancing their secretion of corticosterone. Increasing corticosterone secretion triggers foraging efforts and diminishes nest attendance whereas an attenuation of prolactin response to stress maintains parental behavior. We suggest that this hormonal mechanism facilitates a flexible time-budget that has been interpreted as a buffer against environmental variability. Article in Journal/Newspaper Black-legged Kittiwake rissa tridactyla Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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 |
Parental effort Stress response Corticosterone Prolactin Long-lived bird Kittiwake Rissa tridactyla [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.ES]Environmental Sciences/Environmental and Society [SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
Parental effort Stress response Corticosterone Prolactin Long-lived bird Kittiwake Rissa tridactyla [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.ES]Environmental Sciences/Environmental and Society [SDE.MCG]Environmental Sciences/Global Changes Chastel, Olivier Lacroix, André Weimerskirch, Henri Gabrielsen, Geir Wing Modulation of prolactin but not corticosterone responses to stress in relation to parental effort in a long-lived bird |
topic_facet |
Parental effort Stress response Corticosterone Prolactin Long-lived bird Kittiwake Rissa tridactyla [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.ES]Environmental Sciences/Environmental and Society [SDE.MCG]Environmental Sciences/Global Changes |
description |
International audience We tested the hypothesis that parental effort modulates the magnitude of corticosterone and prolactin responses to stress in a long-lived bird, the Black-legged kittiwake (Rissa tridactyla). To do so, we compared corticosterone and prolactin responses to capture/restraint stress between chick-rearing birds and failed breeders (no parental effort). We predicted that (1) the increase in plasma corticosterone levels in response to stress should be lower in chick-rearing birds, (2) the decrease in plasma prolactin levels in response to stress should be lower in chick-rearing birds, and (3) as both sexes care for the chick, there should be no sex difference in the hormonal response to stress. Baseline plasma corticosterone and prolactin levels were higher in chick-rearing birds and were not influenced by body condition. Failed breeders were in better condition than chick-rearing individuals. Corticosterone response to stress was unaffected by parental effort as both chickrearing and failed birds exhibited a robust corticosterone increase. Prolactin response to stress was however clearly influenced by parental effort: chick-rearing birds showed a modest 9% prolactin decrease whereas in failed birds prolactin concentrations fell by 41%. Body condition did not influence hormonal responses to stress. When facing stressful condition, breeding kittiwakes attenuate their prolactin response to stress while enhancing their secretion of corticosterone. Increasing corticosterone secretion triggers foraging efforts and diminishes nest attendance whereas an attenuation of prolactin response to stress maintains parental behavior. We suggest that this hormonal mechanism facilitates a flexible time-budget that has been interpreted as a buffer against environmental variability. |
author2 |
Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Chastel, Olivier Lacroix, André Weimerskirch, Henri Gabrielsen, Geir Wing |
author_facet |
Chastel, Olivier Lacroix, André Weimerskirch, Henri Gabrielsen, Geir Wing |
author_sort |
Chastel, Olivier |
title |
Modulation of prolactin but not corticosterone responses to stress in relation to parental effort in a long-lived bird |
title_short |
Modulation of prolactin but not corticosterone responses to stress in relation to parental effort in a long-lived bird |
title_full |
Modulation of prolactin but not corticosterone responses to stress in relation to parental effort in a long-lived bird |
title_fullStr |
Modulation of prolactin but not corticosterone responses to stress in relation to parental effort in a long-lived bird |
title_full_unstemmed |
Modulation of prolactin but not corticosterone responses to stress in relation to parental effort in a long-lived bird |
title_sort |
modulation of prolactin but not corticosterone responses to stress in relation to parental effort in a long-lived bird |
publisher |
HAL CCSD |
publishDate |
2005 |
url |
https://hal.archives-ouvertes.fr/hal-00187644 |
genre |
Black-legged Kittiwake rissa tridactyla |
genre_facet |
Black-legged Kittiwake rissa tridactyla |
op_source |
ISSN: 0018-506X EISSN: 1095-6867 Hormones and Behavior https://hal.archives-ouvertes.fr/hal-00187644 Hormones and Behavior, Elsevier, 2005, 47, pp.459-466 |
op_relation |
hal-00187644 https://hal.archives-ouvertes.fr/hal-00187644 |
_version_ |
1766379327718424576 |