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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ftdryad:oai:v1.datadryad.org:10255/dryad.93575 2023-05-15T14:26:26+02:00 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 Svalbard archipelago 2012-2014 2015-08-10T19:12:32Z http://hdl.handle.net/10255/dryad.93575 https://doi.org/10.5061/dryad.tv50m unknown doi:10.5061/dryad.tv50m/1 doi:10.1111/1365-2435.12534 doi:10.5061/dryad.tv50m Tartu S, Bustamante P, Angelier F, Lendvai ÁZ, Moe B, Blévin P, Bech C, Gabrielsen GW, Bustnes JO, Chastel O (2016) Mercury exposure, stress and prolactin secretion in an Arctic seabird: an experimental study. Functional Ecology 30(4): 596–604. http://hdl.handle.net/10255/dryad.93575 Arctic Black-legged kittiwake Breeding success Contaminants Corticosterone Endocrine disruptors Parenting hormone Parental investment Article 2015 ftdryad https://doi.org/10.5061/dryad.tv50m https://doi.org/10.5061/dryad.tv50m/1 https://doi.org/10.1111/1365-2435.12534 2020-01-01T15:22:43Z 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. Article in Journal/Newspaper Arctic Arctic Black-legged Kittiwake rissa tridactyla Svalbard Dryad Digital Repository (Duke University) Arctic Svalbard Svalbard Archipelago |
institution |
Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
Arctic Black-legged kittiwake Breeding success Contaminants Corticosterone Endocrine disruptors Parenting hormone Parental investment |
spellingShingle |
Arctic Black-legged kittiwake Breeding success Contaminants Corticosterone Endocrine disruptors Parenting hormone Parental investment 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 |
Arctic Black-legged kittiwake Breeding success Contaminants Corticosterone Endocrine disruptors Parenting hormone Parental investment |
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. |
format |
Article in Journal/Newspaper |
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 |
publishDate |
2015 |
url |
http://hdl.handle.net/10255/dryad.93575 https://doi.org/10.5061/dryad.tv50m |
op_coverage |
Svalbard archipelago 2012-2014 |
geographic |
Arctic Svalbard Svalbard Archipelago |
geographic_facet |
Arctic Svalbard Svalbard Archipelago |
genre |
Arctic Arctic Black-legged Kittiwake rissa tridactyla Svalbard |
genre_facet |
Arctic Arctic Black-legged Kittiwake rissa tridactyla Svalbard |
op_relation |
doi:10.5061/dryad.tv50m/1 doi:10.1111/1365-2435.12534 doi:10.5061/dryad.tv50m Tartu S, Bustamante P, Angelier F, Lendvai ÁZ, Moe B, Blévin P, Bech C, Gabrielsen GW, Bustnes JO, Chastel O (2016) Mercury exposure, stress and prolactin secretion in an Arctic seabird: an experimental study. Functional Ecology 30(4): 596–604. http://hdl.handle.net/10255/dryad.93575 |
op_doi |
https://doi.org/10.5061/dryad.tv50m https://doi.org/10.5061/dryad.tv50m/1 https://doi.org/10.1111/1365-2435.12534 |
_version_ |
1766298995267731456 |