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...

Full description

Bibliographic Details
Main Authors: Tartu, Sabrina, Bustamante, Paco, Angelier, Frédéric, Lendvai, Ádám Z., Moe, Børge, Blévin, Pierre, Bech, Claus, Gabrielsen, Geir W., Bustnes, Jan Ove, Chastel, Olivier
Format: Other/Unknown Material
Language:unknown
Published: Zenodo 2016
Subjects:
Online Access:https://doi.org/10.5061/dryad.tv50m
id ftzenodo:oai:zenodo.org:5017072
record_format openpolar
spelling 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
institution Open Polar
collection Zenodo
op_collection_id ftzenodo
language unknown
topic Endocrine disruptors
2012-2014
Contaminants
Breeding success
Black-legged kittiwake
parental investment
Parenting hormone
Rissa tridactyla
spellingShingle 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