Mercury trends in herring gull (Larus argentatus) eggs from Atlantic Canada, 1972-2008:Temporal change or dietary shift?
Mercury (Hg) is a pervasive contaminant that can adversely affect predatory wildlife. Bird eggs provide insights into breeding females' Hg burdens, and are easily collected and archived. We present data on Hg trends in herring gull (Larus argentatus) eggs from five sites in Atlantic Canada from...
Published in: | Environmental Pollution |
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Language: | English |
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ftuhipublicatio:oai:pure.atira.dk:publications/6ffff774-cc6c-444f-8d24-847067541e79 2024-06-23T07:54:46+00:00 Mercury trends in herring gull (Larus argentatus) eggs from Atlantic Canada, 1972-2008:Temporal change or dietary shift? Burgess, Neil M. Bond, Alexander L. Hebert, Craig E. Neugebauer, Ewa Champoux, Louise 2013-01-01 https://pure.uhi.ac.uk/en/publications/6ffff774-cc6c-444f-8d24-847067541e79 https://doi.org/10.1016/j.envpol.2012.09.001 http://www.scopus.com/inward/record.url?scp=84867235211&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=84867235211&partnerID=8YFLogxK eng eng https://pure.uhi.ac.uk/en/publications/6ffff774-cc6c-444f-8d24-847067541e79 info:eu-repo/semantics/restrictedAccess Burgess , N M , Bond , A L , Hebert , C E , Neugebauer , E & Champoux , L 2013 , ' Mercury trends in herring gull (Larus argentatus) eggs from Atlantic Canada, 1972-2008 : Temporal change or dietary shift? ' , Environmental Pollution , vol. 172 , pp. 216-222 . https://doi.org/10.1016/j.envpol.2012.09.001 Atlantic Egg Herring gull Mercury Stable isotope article 2013 ftuhipublicatio https://doi.org/10.1016/j.envpol.2012.09.001 2024-05-27T23:56:27Z Mercury (Hg) is a pervasive contaminant that can adversely affect predatory wildlife. Bird eggs provide insights into breeding females' Hg burdens, and are easily collected and archived. We present data on Hg trends in herring gull (Larus argentatus) eggs from five sites in Atlantic Canada from 1972 to 2008. We found a significant decrease in Hg at Manawagonish Island, New Brunswick and Île du Corossol, Quebec, but after correcting Hg for dietary shifts using stable isotopes (δ 15 N), these trends disappeared. Decreasing temporal trends of stable isotopes in gull eggs were observed at four sites, suggesting shifts in gull diets. At Gull Island, Newfoundland, diet-adjusted Hg increased from 1977 to 1992, dropped sharply between 1992 and 1996, and rose again from 1996 to 2008. After adjusting Hg trends for dietary shifts of herring gulls, it appears that environmental Hg in coastal ecosystems has remained relatively constant at most sites in Atlantic Canada over the last 36 years. Article in Journal/Newspaper Newfoundland University of the Highlands and Islands: Research Database of UHI Canada Gull Island ENVELOPE(-55.315,-55.315,49.533,49.533) Environmental Pollution 172 216 222 |
institution |
Open Polar |
collection |
University of the Highlands and Islands: Research Database of UHI |
op_collection_id |
ftuhipublicatio |
language |
English |
topic |
Atlantic Egg Herring gull Mercury Stable isotope |
spellingShingle |
Atlantic Egg Herring gull Mercury Stable isotope Burgess, Neil M. Bond, Alexander L. Hebert, Craig E. Neugebauer, Ewa Champoux, Louise Mercury trends in herring gull (Larus argentatus) eggs from Atlantic Canada, 1972-2008:Temporal change or dietary shift? |
topic_facet |
Atlantic Egg Herring gull Mercury Stable isotope |
description |
Mercury (Hg) is a pervasive contaminant that can adversely affect predatory wildlife. Bird eggs provide insights into breeding females' Hg burdens, and are easily collected and archived. We present data on Hg trends in herring gull (Larus argentatus) eggs from five sites in Atlantic Canada from 1972 to 2008. We found a significant decrease in Hg at Manawagonish Island, New Brunswick and Île du Corossol, Quebec, but after correcting Hg for dietary shifts using stable isotopes (δ 15 N), these trends disappeared. Decreasing temporal trends of stable isotopes in gull eggs were observed at four sites, suggesting shifts in gull diets. At Gull Island, Newfoundland, diet-adjusted Hg increased from 1977 to 1992, dropped sharply between 1992 and 1996, and rose again from 1996 to 2008. After adjusting Hg trends for dietary shifts of herring gulls, it appears that environmental Hg in coastal ecosystems has remained relatively constant at most sites in Atlantic Canada over the last 36 years. |
format |
Article in Journal/Newspaper |
author |
Burgess, Neil M. Bond, Alexander L. Hebert, Craig E. Neugebauer, Ewa Champoux, Louise |
author_facet |
Burgess, Neil M. Bond, Alexander L. Hebert, Craig E. Neugebauer, Ewa Champoux, Louise |
author_sort |
Burgess, Neil M. |
title |
Mercury trends in herring gull (Larus argentatus) eggs from Atlantic Canada, 1972-2008:Temporal change or dietary shift? |
title_short |
Mercury trends in herring gull (Larus argentatus) eggs from Atlantic Canada, 1972-2008:Temporal change or dietary shift? |
title_full |
Mercury trends in herring gull (Larus argentatus) eggs from Atlantic Canada, 1972-2008:Temporal change or dietary shift? |
title_fullStr |
Mercury trends in herring gull (Larus argentatus) eggs from Atlantic Canada, 1972-2008:Temporal change or dietary shift? |
title_full_unstemmed |
Mercury trends in herring gull (Larus argentatus) eggs from Atlantic Canada, 1972-2008:Temporal change or dietary shift? |
title_sort |
mercury trends in herring gull (larus argentatus) eggs from atlantic canada, 1972-2008:temporal change or dietary shift? |
publishDate |
2013 |
url |
https://pure.uhi.ac.uk/en/publications/6ffff774-cc6c-444f-8d24-847067541e79 https://doi.org/10.1016/j.envpol.2012.09.001 http://www.scopus.com/inward/record.url?scp=84867235211&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=84867235211&partnerID=8YFLogxK |
long_lat |
ENVELOPE(-55.315,-55.315,49.533,49.533) |
geographic |
Canada Gull Island |
geographic_facet |
Canada Gull Island |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
Burgess , N M , Bond , A L , Hebert , C E , Neugebauer , E & Champoux , L 2013 , ' Mercury trends in herring gull (Larus argentatus) eggs from Atlantic Canada, 1972-2008 : Temporal change or dietary shift? ' , Environmental Pollution , vol. 172 , pp. 216-222 . https://doi.org/10.1016/j.envpol.2012.09.001 |
op_relation |
https://pure.uhi.ac.uk/en/publications/6ffff774-cc6c-444f-8d24-847067541e79 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.envpol.2012.09.001 |
container_title |
Environmental Pollution |
container_volume |
172 |
container_start_page |
216 |
op_container_end_page |
222 |
_version_ |
1802647043357802496 |