Sex- and breeding stage-specific hormonal stress response of seabird parents
International audience Changes in corticosterone (CORT) and prolactin (PRL) levels are thought to provide complementary information on parental decisions in birds in the context of stressful situations. However, these endocrine mechanisms have yet to be fully elucidated, appearing to vary among avia...
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Online Access: | https://hal.science/hal-01851998 https://doi.org/10.1016/j.yhbeh.2018.06.005 |
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ftunivrochelle:oai:HAL:hal-01851998v1 2024-02-11T09:55:06+01:00 Sex- and breeding stage-specific hormonal stress response of seabird parents Wojczulanis-Jakubas, Katarzyna Jakubas, Dariusz Kulpińska-Chamera, Monika Chastel, Olivier Faculty of Biology Gdansk, Poland University of Gdańsk (UG) Department of Vertebrate Ecology and Zoology Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Institut National de la Recherche Agronomique (INRA)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) 2018-07 https://hal.science/hal-01851998 https://doi.org/10.1016/j.yhbeh.2018.06.005 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.yhbeh.2018.06.005 hal-01851998 https://hal.science/hal-01851998 doi:10.1016/j.yhbeh.2018.06.005 ISSN: 0018-506X EISSN: 1095-6867 Hormones and Behavior https://hal.science/hal-01851998 Hormones and Behavior, 2018, 103, pp.71 - 79. ⟨10.1016/j.yhbeh.2018.06.005⟩ Brood value Corticosterone Dovekie Little auk Prolactin Stress response [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2018 ftunivrochelle https://doi.org/10.1016/j.yhbeh.2018.06.005 2024-01-23T23:35:23Z International audience Changes in corticosterone (CORT) and prolactin (PRL) levels are thought to provide complementary information on parental decisions in birds in the context of stressful situations. However, these endocrine mechanisms have yet to be fully elucidated, appearing to vary among avian species without any clear pattern. Here, we examined CORT and PRL stress responses in a small Arctic seabird, the little auk (Alle alle). We analysed the levels of these hormones (baseline, and stress response, i.e. the change in the baseline in response to stress) with respect to the breeding phase (mid incubation and mid chick rearing) and the sex of the birds. Baseline CORT concentrations were similar during both breeding phases but baseline PRL levels were higher during incubation than chick rearing. The CORT and PRL stress responses were stronger during incubation than chick rearing (although with respect to CORT the effect was only marginally significant). There were also some sex-specific baseline levels and stress responses for both hormones (during the incubation period males compared to females exhibited higher CORT stress response and lower baseline PRL; during the chick rearing period males exhibited higher PRL stress response). Our results suggest that in the case of the little auk, both the incubation and the chick rearing periods may represent similar levels of physiological stress. However, the birds may be more sensitive to stress during incubation than during chick rearing, possibly because of inter-phase differences in predation pressure. The sex differences suggest differential exposure of males and females to stressors. Article in Journal/Newspaper Alle alle Arctic Dovekie little auk HAL - Université de La Rochelle Arctic Hormones and Behavior 103 71 79 |
institution |
Open Polar |
collection |
HAL - Université de La Rochelle |
op_collection_id |
ftunivrochelle |
language |
English |
topic |
Brood value Corticosterone Dovekie Little auk Prolactin Stress response [SDE]Environmental Sciences |
spellingShingle |
Brood value Corticosterone Dovekie Little auk Prolactin Stress response [SDE]Environmental Sciences Wojczulanis-Jakubas, Katarzyna Jakubas, Dariusz Kulpińska-Chamera, Monika Chastel, Olivier Sex- and breeding stage-specific hormonal stress response of seabird parents |
topic_facet |
Brood value Corticosterone Dovekie Little auk Prolactin Stress response [SDE]Environmental Sciences |
description |
International audience Changes in corticosterone (CORT) and prolactin (PRL) levels are thought to provide complementary information on parental decisions in birds in the context of stressful situations. However, these endocrine mechanisms have yet to be fully elucidated, appearing to vary among avian species without any clear pattern. Here, we examined CORT and PRL stress responses in a small Arctic seabird, the little auk (Alle alle). We analysed the levels of these hormones (baseline, and stress response, i.e. the change in the baseline in response to stress) with respect to the breeding phase (mid incubation and mid chick rearing) and the sex of the birds. Baseline CORT concentrations were similar during both breeding phases but baseline PRL levels were higher during incubation than chick rearing. The CORT and PRL stress responses were stronger during incubation than chick rearing (although with respect to CORT the effect was only marginally significant). There were also some sex-specific baseline levels and stress responses for both hormones (during the incubation period males compared to females exhibited higher CORT stress response and lower baseline PRL; during the chick rearing period males exhibited higher PRL stress response). Our results suggest that in the case of the little auk, both the incubation and the chick rearing periods may represent similar levels of physiological stress. However, the birds may be more sensitive to stress during incubation than during chick rearing, possibly because of inter-phase differences in predation pressure. The sex differences suggest differential exposure of males and females to stressors. |
author2 |
Faculty of Biology Gdansk, Poland University of Gdańsk (UG) Department of Vertebrate Ecology and Zoology Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Institut National de la Recherche Agronomique (INRA)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Wojczulanis-Jakubas, Katarzyna Jakubas, Dariusz Kulpińska-Chamera, Monika Chastel, Olivier |
author_facet |
Wojczulanis-Jakubas, Katarzyna Jakubas, Dariusz Kulpińska-Chamera, Monika Chastel, Olivier |
author_sort |
Wojczulanis-Jakubas, Katarzyna |
title |
Sex- and breeding stage-specific hormonal stress response of seabird parents |
title_short |
Sex- and breeding stage-specific hormonal stress response of seabird parents |
title_full |
Sex- and breeding stage-specific hormonal stress response of seabird parents |
title_fullStr |
Sex- and breeding stage-specific hormonal stress response of seabird parents |
title_full_unstemmed |
Sex- and breeding stage-specific hormonal stress response of seabird parents |
title_sort |
sex- and breeding stage-specific hormonal stress response of seabird parents |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.science/hal-01851998 https://doi.org/10.1016/j.yhbeh.2018.06.005 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Alle alle Arctic Dovekie little auk |
genre_facet |
Alle alle Arctic Dovekie little auk |
op_source |
ISSN: 0018-506X EISSN: 1095-6867 Hormones and Behavior https://hal.science/hal-01851998 Hormones and Behavior, 2018, 103, pp.71 - 79. ⟨10.1016/j.yhbeh.2018.06.005⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.yhbeh.2018.06.005 hal-01851998 https://hal.science/hal-01851998 doi:10.1016/j.yhbeh.2018.06.005 |
op_doi |
https://doi.org/10.1016/j.yhbeh.2018.06.005 |
container_title |
Hormones and Behavior |
container_volume |
103 |
container_start_page |
71 |
op_container_end_page |
79 |
_version_ |
1790593887534841856 |