Data from: To breed or not to breed: endocrine response to mercury contamination by an Arctic seabird
Mercury, a ubiquitous toxic element, is known to alter expression of sex steroids and to impair reproduction across vertebrates but the mechanisms underlying these effects are not clearly identified. We examined whether contamination by mercury predicts the probability to skip reproduction in black-...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:83645 2023-07-02T03:31:24+02:00 Data from: To breed or not to breed: endocrine response to mercury contamination by an Arctic seabird Tartu, Sabrina Goutte, Aurélie Bustamante, Paco Angelier, Frédéric Moe, Børge Clément-Chastel, Céline Bech, Claus Gabrielsen, Geir Wing Bustnes, Jan Ove Chastel, Olivier 2013-05-29T18:36:08.000+02:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-og-9k1f https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:83645 unknown doi:10.5061/dryad.4ff07/1 doi:10.1098/rsbl.2013.0317 PMID:23720523 http://nbn-resolving.org/urn:nbn:nl:ui:13-og-9k1f doi:10.5061/dryad.4ff07 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:83645 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2013 ftdans https://doi.org/10.5061/dryad.4ff07/110.1098/rsbl.2013.031710.5061/dryad.4ff07 2023-06-13T13:09:27Z Mercury, a ubiquitous toxic element, is known to alter expression of sex steroids and to impair reproduction across vertebrates but the mechanisms underlying these effects are not clearly identified. We examined whether contamination by mercury predicts the probability to skip reproduction in black-legged kittiwakes (Rissa tridactyla) from Svalbard. We also manipulated the endocrine system to investigate the mechanism underlying this relationship. During the pre-laying period, we injected exogenous GnRH (gonadotropin-releasing hormone) to test the ability of the pituitary to release luteinizing hormone (LH, a key hormone for the release of sex steroids and hence breeding) in relation to mercury burden. Birds that skipped reproduction had significantly higher mercury concentration in blood than breeders. Endocrine profiles of these birds also varied based on breeding status (breeders versus non-breeders), mercury contamination and sex. Specifically, in skippers (birds that did not breed), baseline LH decreased with increasing mercury concentration in males, whereas it increased in females. GnRH-induced LH levels increased with increasing mercury concentration in both sexes. These results suggest that mercury contamination may disrupt GnRH input to the pituitary. Thus, high mercury concentration could affect the ability of long-lived birds to modulate their reproductive effort (skipping or breeding) according to ongoing environmental changes in the Arctic, thereby impacting population dynamics. Other/Unknown Material Arctic rissa tridactyla Svalbard Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) Arctic Svalbard |
institution |
Open Polar |
collection |
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
op_collection_id |
ftdans |
language |
unknown |
topic |
Life sciences medicine and health care |
spellingShingle |
Life sciences medicine and health care Tartu, Sabrina Goutte, Aurélie Bustamante, Paco Angelier, Frédéric Moe, Børge Clément-Chastel, Céline Bech, Claus Gabrielsen, Geir Wing Bustnes, Jan Ove Chastel, Olivier Data from: To breed or not to breed: endocrine response to mercury contamination by an Arctic seabird |
topic_facet |
Life sciences medicine and health care |
description |
Mercury, a ubiquitous toxic element, is known to alter expression of sex steroids and to impair reproduction across vertebrates but the mechanisms underlying these effects are not clearly identified. We examined whether contamination by mercury predicts the probability to skip reproduction in black-legged kittiwakes (Rissa tridactyla) from Svalbard. We also manipulated the endocrine system to investigate the mechanism underlying this relationship. During the pre-laying period, we injected exogenous GnRH (gonadotropin-releasing hormone) to test the ability of the pituitary to release luteinizing hormone (LH, a key hormone for the release of sex steroids and hence breeding) in relation to mercury burden. Birds that skipped reproduction had significantly higher mercury concentration in blood than breeders. Endocrine profiles of these birds also varied based on breeding status (breeders versus non-breeders), mercury contamination and sex. Specifically, in skippers (birds that did not breed), baseline LH decreased with increasing mercury concentration in males, whereas it increased in females. GnRH-induced LH levels increased with increasing mercury concentration in both sexes. These results suggest that mercury contamination may disrupt GnRH input to the pituitary. Thus, high mercury concentration could affect the ability of long-lived birds to modulate their reproductive effort (skipping or breeding) according to ongoing environmental changes in the Arctic, thereby impacting population dynamics. |
author |
Tartu, Sabrina Goutte, Aurélie Bustamante, Paco Angelier, Frédéric Moe, Børge Clément-Chastel, Céline Bech, Claus Gabrielsen, Geir Wing Bustnes, Jan Ove Chastel, Olivier |
author_facet |
Tartu, Sabrina Goutte, Aurélie Bustamante, Paco Angelier, Frédéric Moe, Børge Clément-Chastel, Céline Bech, Claus Gabrielsen, Geir Wing Bustnes, Jan Ove Chastel, Olivier |
author_sort |
Tartu, Sabrina |
title |
Data from: To breed or not to breed: endocrine response to mercury contamination by an Arctic seabird |
title_short |
Data from: To breed or not to breed: endocrine response to mercury contamination by an Arctic seabird |
title_full |
Data from: To breed or not to breed: endocrine response to mercury contamination by an Arctic seabird |
title_fullStr |
Data from: To breed or not to breed: endocrine response to mercury contamination by an Arctic seabird |
title_full_unstemmed |
Data from: To breed or not to breed: endocrine response to mercury contamination by an Arctic seabird |
title_sort |
data from: to breed or not to breed: endocrine response to mercury contamination by an arctic seabird |
publishDate |
2013 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-og-9k1f https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:83645 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic rissa tridactyla Svalbard |
genre_facet |
Arctic rissa tridactyla Svalbard |
op_relation |
doi:10.5061/dryad.4ff07/1 doi:10.1098/rsbl.2013.0317 PMID:23720523 http://nbn-resolving.org/urn:nbn:nl:ui:13-og-9k1f doi:10.5061/dryad.4ff07 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:83645 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.4ff07/110.1098/rsbl.2013.031710.5061/dryad.4ff07 |
_version_ |
1770270806104866816 |