Mercury exposure, stress and prolactin secretion in an Arctic seabird: an experimental study
International audience 1. Life-history theory predicts that long-lived organisms should reduce parental effort under inclement environmental conditions in order to favour long-term survival.2. Seabirds are long-lived top predators often exposed to environmental endocrine disrupting chemicals such as...
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Online Access: | https://hal.science/hal-01351309 https://hal.science/hal-01351309/document https://hal.science/hal-01351309/file/Tartu%20et%20al%202016%20Func%20Ecol.pdf https://doi.org/10.1111/1365-2435.12534 |
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ftinsu:oai:HAL:hal-01351309v1 2023-05-15T14:56:52+02:00 Mercury exposure, stress and prolactin secretion in an Arctic seabird: an experimental study Tartu, Sabrina Bustamante, Paco Angelier, Frédéric Lendvai, Adam Zoltan Moe, Børge Blévin, Pierre Bech, Claus Gabrielsen, Geir Wing Bustnes, Jan Ove Chastel, Olivier 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) LIttoral ENvironnement et Sociétés - UMR 7266 (LIENSs) Institut national des sciences de l'Univers (INSU - CNRS)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Institute of Biology College of Nyíregyháza Norwegian Institute for Nature Research (NINA) Norwegian University of Science and Technology Trondheim (NTNU) Norwegian University of Science and Technology (NTNU) Norvegian Polar Research Institute (NPRI) Norwegian Polar Institute 2016 https://hal.science/hal-01351309 https://hal.science/hal-01351309/document https://hal.science/hal-01351309/file/Tartu%20et%20al%202016%20Func%20Ecol.pdf https://doi.org/10.1111/1365-2435.12534 en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1111/1365-2435.12534 hal-01351309 https://hal.science/hal-01351309 https://hal.science/hal-01351309/document https://hal.science/hal-01351309/file/Tartu%20et%20al%202016%20Func%20Ecol.pdf doi:10.1111/1365-2435.12534 info:eu-repo/semantics/OpenAccess ISSN: 0269-8463 EISSN: 1365-2435 Functional Ecology https://hal.science/hal-01351309 Functional Ecology, 2016, 30, pp.596-604. ⟨10.1111/1365-2435.12534⟩ arctic black-legged kittiwake breeding success contaminants corticosterone endocrine disruptors parental investment parenting hormone [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology info:eu-repo/semantics/article Journal articles 2016 ftinsu https://doi.org/10.1111/1365-2435.12534 2023-02-22T18:11:01Z International audience 1. Life-history theory predicts that long-lived organisms should reduce parental effort under inclement environmental conditions in order to favour long-term survival.2. Seabirds are long-lived top predators often exposed to environmental endocrine disrupting chemicals such as mercury (Hg). Hg-contaminated birds show disrupted parental behaviour.3. Avian parental behaviour is governed by two key hormones in birds: corticosterone (CORT, a glucocorticoid hormone) and prolactin (PRL, a pituitary hormone involved in parental care). Any disruption of these hormones may alter the ability of an individual to adjust parental behaviour to environmental conditions.4. The first aim of this study was to describe the relationships between blood Hg concentrations, plasma PRL and reproductive performance in Arctic black-legged kittiwakes (Rissa tridactyla). We a found negative relationship between plasma initial PRL and blood Hg concentrations in males. Moreover, Hg concentration was negatively related to breeding success in chick-rearing males.5. Secondly, to study the effect of a chronic increase in CORT levels on the Hg–PRL relationship, we experimentally increased stress with CORT pellet implantation. We predicted that Hg and CORT would act synergistically on PRL and an increase in CORT concentration would steepen the Hg–PRL relationship. However, adding CORT did not steepen the Hg–PRL relationship. Hatching success was significantly lower in CORT-implanted males than in controls, and breeding success was not reduced in CORT-implanted male kittiwakes with high levels of blood Hg.6. Our results suggest that Hg may impair reproductive performance through a disruption of PRL secretion. Contrary to our prediction, Hg and CORT did not act synergistically and the underlying mechanisms associating CORT and Hg with PRL might be more complex than a single interaction between two factors. Article in Journal/Newspaper Arctic Black-legged Kittiwake rissa tridactyla Institut national des sciences de l'Univers: HAL-INSU Arctic Functional Ecology 30 4 596 604 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
arctic black-legged kittiwake breeding success contaminants corticosterone endocrine disruptors parental investment parenting hormone [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology |
spellingShingle |
arctic black-legged kittiwake breeding success contaminants corticosterone endocrine disruptors parental investment parenting hormone [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology Tartu, Sabrina Bustamante, Paco Angelier, Frédéric Lendvai, Adam Zoltan Moe, Børge Blévin, Pierre Bech, Claus Gabrielsen, Geir Wing Bustnes, Jan Ove Chastel, Olivier Mercury exposure, stress and prolactin secretion in an Arctic seabird: an experimental study |
topic_facet |
arctic black-legged kittiwake breeding success contaminants corticosterone endocrine disruptors parental investment parenting hormone [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology |
description |
International audience 1. Life-history theory predicts that long-lived organisms should reduce parental effort under inclement environmental conditions in order to favour long-term survival.2. Seabirds are long-lived top predators often exposed to environmental endocrine disrupting chemicals such as mercury (Hg). Hg-contaminated birds show disrupted parental behaviour.3. Avian parental behaviour is governed by two key hormones in birds: corticosterone (CORT, a glucocorticoid hormone) and prolactin (PRL, a pituitary hormone involved in parental care). Any disruption of these hormones may alter the ability of an individual to adjust parental behaviour to environmental conditions.4. The first aim of this study was to describe the relationships between blood Hg concentrations, plasma PRL and reproductive performance in Arctic black-legged kittiwakes (Rissa tridactyla). We a found negative relationship between plasma initial PRL and blood Hg concentrations in males. Moreover, Hg concentration was negatively related to breeding success in chick-rearing males.5. Secondly, to study the effect of a chronic increase in CORT levels on the Hg–PRL relationship, we experimentally increased stress with CORT pellet implantation. We predicted that Hg and CORT would act synergistically on PRL and an increase in CORT concentration would steepen the Hg–PRL relationship. However, adding CORT did not steepen the Hg–PRL relationship. Hatching success was significantly lower in CORT-implanted males than in controls, and breeding success was not reduced in CORT-implanted male kittiwakes with high levels of blood Hg.6. Our results suggest that Hg may impair reproductive performance through a disruption of PRL secretion. Contrary to our prediction, Hg and CORT did not act synergistically and the underlying mechanisms associating CORT and Hg with PRL might be more complex than a single interaction between two factors. |
author2 |
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) LIttoral ENvironnement et Sociétés - UMR 7266 (LIENSs) Institut national des sciences de l'Univers (INSU - CNRS)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Institute of Biology College of Nyíregyháza Norwegian Institute for Nature Research (NINA) Norwegian University of Science and Technology Trondheim (NTNU) Norwegian University of Science and Technology (NTNU) Norvegian Polar Research Institute (NPRI) Norwegian Polar Institute |
format |
Article in Journal/Newspaper |
author |
Tartu, Sabrina Bustamante, Paco Angelier, Frédéric Lendvai, Adam Zoltan Moe, Børge Blévin, Pierre Bech, Claus Gabrielsen, Geir Wing Bustnes, Jan Ove Chastel, Olivier |
author_facet |
Tartu, Sabrina Bustamante, Paco Angelier, Frédéric Lendvai, Adam Zoltan Moe, Børge Blévin, Pierre Bech, Claus Gabrielsen, Geir Wing Bustnes, Jan Ove Chastel, Olivier |
author_sort |
Tartu, Sabrina |
title |
Mercury exposure, stress and prolactin secretion in an Arctic seabird: an experimental study |
title_short |
Mercury exposure, stress and prolactin secretion in an Arctic seabird: an experimental study |
title_full |
Mercury exposure, stress and prolactin secretion in an Arctic seabird: an experimental study |
title_fullStr |
Mercury exposure, stress and prolactin secretion in an Arctic seabird: an experimental study |
title_full_unstemmed |
Mercury exposure, stress and prolactin secretion in an Arctic seabird: an experimental study |
title_sort |
mercury exposure, stress and prolactin secretion in an arctic seabird: an experimental study |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal.science/hal-01351309 https://hal.science/hal-01351309/document https://hal.science/hal-01351309/file/Tartu%20et%20al%202016%20Func%20Ecol.pdf https://doi.org/10.1111/1365-2435.12534 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Black-legged Kittiwake rissa tridactyla |
genre_facet |
Arctic Black-legged Kittiwake rissa tridactyla |
op_source |
ISSN: 0269-8463 EISSN: 1365-2435 Functional Ecology https://hal.science/hal-01351309 Functional Ecology, 2016, 30, pp.596-604. ⟨10.1111/1365-2435.12534⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/1365-2435.12534 hal-01351309 https://hal.science/hal-01351309 https://hal.science/hal-01351309/document https://hal.science/hal-01351309/file/Tartu%20et%20al%202016%20Func%20Ecol.pdf doi:10.1111/1365-2435.12534 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1111/1365-2435.12534 |
container_title |
Functional Ecology |
container_volume |
30 |
container_issue |
4 |
container_start_page |
596 |
op_container_end_page |
604 |
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1766328931939516416 |