Data from: Mercury exposure, stress and prolactin secretion in an Arctic seabird: an experimental study
Life-history theory predicts that long-lived organisms should reduce parental effort under inclement environmental conditions in order to favour long-term survival. Seabirds are long-lived top predators often exposed to environmental endocrine disrupting chemicals such as mercury (Hg). Hg-contaminat...
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ftzenodo:oai:zenodo.org:5017072 2024-09-15T18:00:01+00:00 Data from: Mercury exposure, stress and prolactin secretion in an Arctic seabird: an experimental study Tartu, Sabrina Bustamante, Paco Angelier, Frédéric Lendvai, Ádám Z. Moe, Børge Blévin, Pierre Bech, Claus Gabrielsen, Geir W. Bustnes, Jan Ove Chastel, Olivier 2016-07-27 https://doi.org/10.5061/dryad.tv50m unknown Zenodo https://doi.org/10.1111/1365-2435.12534 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.tv50m oai:zenodo.org:5017072 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode Endocrine disruptors 2012-2014 Contaminants Breeding success Black-legged kittiwake parental investment Parenting hormone Rissa tridactyla info:eu-repo/semantics/other 2016 ftzenodo https://doi.org/10.5061/dryad.tv50m10.1111/1365-2435.12534 2024-07-25T18:15:12Z Life-history theory predicts that long-lived organisms should reduce parental effort under inclement environmental conditions in order to favour long-term survival. Seabirds are long-lived top predators often exposed to environmental endocrine disrupting chemicals such as mercury (Hg). Hg-contaminated birds show disrupted parental behaviour. 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. 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. 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. 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. Data Tartu et al. 2015 Reproductive performance (2012, 2013, 2014), prolactin, corticosterone and mercury concentrations (2012, 2013), corticosterone and ... Other/Unknown Material Black-legged Kittiwake rissa tridactyla Zenodo |
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Endocrine disruptors 2012-2014 Contaminants Breeding success Black-legged kittiwake parental investment Parenting hormone Rissa tridactyla |
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Endocrine disruptors 2012-2014 Contaminants Breeding success Black-legged kittiwake parental investment Parenting hormone Rissa tridactyla Tartu, Sabrina Bustamante, Paco Angelier, Frédéric Lendvai, Ádám Z. Moe, Børge Blévin, Pierre Bech, Claus Gabrielsen, Geir W. Bustnes, Jan Ove Chastel, Olivier Data from: Mercury exposure, stress and prolactin secretion in an Arctic seabird: an experimental study |
topic_facet |
Endocrine disruptors 2012-2014 Contaminants Breeding success Black-legged kittiwake parental investment Parenting hormone Rissa tridactyla |
description |
Life-history theory predicts that long-lived organisms should reduce parental effort under inclement environmental conditions in order to favour long-term survival. Seabirds are long-lived top predators often exposed to environmental endocrine disrupting chemicals such as mercury (Hg). Hg-contaminated birds show disrupted parental behaviour. 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. 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. 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. 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. Data Tartu et al. 2015 Reproductive performance (2012, 2013, 2014), prolactin, corticosterone and mercury concentrations (2012, 2013), corticosterone and ... |
format |
Other/Unknown Material |
author |
Tartu, Sabrina Bustamante, Paco Angelier, Frédéric Lendvai, Ádám Z. Moe, Børge Blévin, Pierre Bech, Claus Gabrielsen, Geir W. Bustnes, Jan Ove Chastel, Olivier |
author_facet |
Tartu, Sabrina Bustamante, Paco Angelier, Frédéric Lendvai, Ádám Z. Moe, Børge Blévin, Pierre Bech, Claus Gabrielsen, Geir W. Bustnes, Jan Ove Chastel, Olivier |
author_sort |
Tartu, Sabrina |
title |
Data from: Mercury exposure, stress and prolactin secretion in an Arctic seabird: an experimental study |
title_short |
Data from: Mercury exposure, stress and prolactin secretion in an Arctic seabird: an experimental study |
title_full |
Data from: Mercury exposure, stress and prolactin secretion in an Arctic seabird: an experimental study |
title_fullStr |
Data from: Mercury exposure, stress and prolactin secretion in an Arctic seabird: an experimental study |
title_full_unstemmed |
Data from: Mercury exposure, stress and prolactin secretion in an Arctic seabird: an experimental study |
title_sort |
data from: mercury exposure, stress and prolactin secretion in an arctic seabird: an experimental study |
publisher |
Zenodo |
publishDate |
2016 |
url |
https://doi.org/10.5061/dryad.tv50m |
genre |
Black-legged Kittiwake rissa tridactyla |
genre_facet |
Black-legged Kittiwake rissa tridactyla |
op_relation |
https://doi.org/10.1111/1365-2435.12534 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.tv50m oai:zenodo.org:5017072 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.tv50m10.1111/1365-2435.12534 |
_version_ |
1810437123668443136 |