Temporal trends of mercury differ across three northern white-tailed eagle (Haliaeetus albicilla) subpopulations
The spatiotemporal trends of mercury (Hg) are crucial for the understanding of this ubiquitous and toxic contaminant. However, uncertainties often arise from comparison among studies using different species, analytical and statistical methods. The long-term temporal trends of Hg exposure were recons...
Published in: | Science of The Total Environment |
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2019
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Online Access: | https://pure.au.dk/portal/en/publications/1d1ddb49-7780-482b-8507-cf479bece5c5 https://doi.org/10.1016/j.scitotenv.2019.06.027 http://www.scopus.com/inward/record.url?scp=85067188916&partnerID=8YFLogxK |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/1d1ddb49-7780-482b-8507-cf479bece5c5 2024-02-04T10:00:46+01:00 Temporal trends of mercury differ across three northern white-tailed eagle (Haliaeetus albicilla) subpopulations Sun, Jiachen Bustnes, Jan Ove Helander, Björn Bårdsen, Bård Jørgen Boertmann, David Dietz, Rune Jaspers, Veerle L.B. Labansen, Aili Lage Lepoint, Gilles Schulz, Ralf Søndergaard, Jens Sonne, Christian Thorup, Kasper Tøttrup, Anders P. Zubrod, Jochen P. Eens, Marcel Eulaers, Igor 2019-10-15 https://pure.au.dk/portal/en/publications/1d1ddb49-7780-482b-8507-cf479bece5c5 https://doi.org/10.1016/j.scitotenv.2019.06.027 http://www.scopus.com/inward/record.url?scp=85067188916&partnerID=8YFLogxK eng eng https://pure.au.dk/portal/en/publications/1d1ddb49-7780-482b-8507-cf479bece5c5 info:eu-repo/semantics/restrictedAccess Sun , J , Bustnes , J O , Helander , B , Bårdsen , B J , Boertmann , D , Dietz , R , Jaspers , V L B , Labansen , A L , Lepoint , G , Schulz , R , Søndergaard , J , Sonne , C , Thorup , K , Tøttrup , A P , Zubrod , J P , Eens , M & Eulaers , I 2019 , ' Temporal trends of mercury differ across three northern white-tailed eagle (Haliaeetus albicilla) subpopulations ' , Science of the Total Environment , vol. 687 , pp. 77-86 . https://doi.org/10.1016/j.scitotenv.2019.06.027 Feather Hg Museum collection Stable isotope δC δN article 2019 ftuniaarhuspubl https://doi.org/10.1016/j.scitotenv.2019.06.027 2024-01-11T00:00:45Z The spatiotemporal trends of mercury (Hg) are crucial for the understanding of this ubiquitous and toxic contaminant. However, uncertainties often arise from comparison among studies using different species, analytical and statistical methods. The long-term temporal trends of Hg exposure were reconstructed for a key sentinel species, the white-tailed eagle (Haliaeetus albicilla). Body feathers were sampled from museum collections covering 150 years in time (from 1866 to 2015) from West Greenland (n = 124), Norway (n = 102), and Sweden (n = 87). A significant non-linear trend was observed in the Norwegian subpopulation, with a 60% increase in exposure occurring from 1866 to 1957 followed by a 40% decline until 2015. In the Swedish subpopulation, studied at a later period, the Hg exposure showed a drastic decline of 70% from 1967 to 2011. In contrast, no significant trend could be observed in the Greenland subpopulation. The additional analysis of dietary proxies (δ 13 C and δ 15 N) in general increased performance of the temporal trend models, but this was dependent on the subpopulation and study period. The downward trend of Hg coincided with the decreasing δ 13 C and δ 15 N in the Norwegian subpopulation, suggesting a potential dietary mitigation of Hg contamination. Hg exposure in both the Greenland and Norwegian subpopulations was consistently below the suggested threshold for adverse health effects (40.0 μg g −1 ), while the maximum exposure in the Swedish subpopulation was distinctively elevated (median: 46.0 μg g −1 ) and still remains well above natural background concentrations (maximum 5.0 μg g −1 ). Article in Journal/Newspaper Greenland Haliaeetus albicilla White-tailed eagle Aarhus University: Research Greenland Norway Science of The Total Environment 687 77 86 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Feather Hg Museum collection Stable isotope δC δN |
spellingShingle |
Feather Hg Museum collection Stable isotope δC δN Sun, Jiachen Bustnes, Jan Ove Helander, Björn Bårdsen, Bård Jørgen Boertmann, David Dietz, Rune Jaspers, Veerle L.B. Labansen, Aili Lage Lepoint, Gilles Schulz, Ralf Søndergaard, Jens Sonne, Christian Thorup, Kasper Tøttrup, Anders P. Zubrod, Jochen P. Eens, Marcel Eulaers, Igor Temporal trends of mercury differ across three northern white-tailed eagle (Haliaeetus albicilla) subpopulations |
topic_facet |
Feather Hg Museum collection Stable isotope δC δN |
description |
The spatiotemporal trends of mercury (Hg) are crucial for the understanding of this ubiquitous and toxic contaminant. However, uncertainties often arise from comparison among studies using different species, analytical and statistical methods. The long-term temporal trends of Hg exposure were reconstructed for a key sentinel species, the white-tailed eagle (Haliaeetus albicilla). Body feathers were sampled from museum collections covering 150 years in time (from 1866 to 2015) from West Greenland (n = 124), Norway (n = 102), and Sweden (n = 87). A significant non-linear trend was observed in the Norwegian subpopulation, with a 60% increase in exposure occurring from 1866 to 1957 followed by a 40% decline until 2015. In the Swedish subpopulation, studied at a later period, the Hg exposure showed a drastic decline of 70% from 1967 to 2011. In contrast, no significant trend could be observed in the Greenland subpopulation. The additional analysis of dietary proxies (δ 13 C and δ 15 N) in general increased performance of the temporal trend models, but this was dependent on the subpopulation and study period. The downward trend of Hg coincided with the decreasing δ 13 C and δ 15 N in the Norwegian subpopulation, suggesting a potential dietary mitigation of Hg contamination. Hg exposure in both the Greenland and Norwegian subpopulations was consistently below the suggested threshold for adverse health effects (40.0 μg g −1 ), while the maximum exposure in the Swedish subpopulation was distinctively elevated (median: 46.0 μg g −1 ) and still remains well above natural background concentrations (maximum 5.0 μg g −1 ). |
format |
Article in Journal/Newspaper |
author |
Sun, Jiachen Bustnes, Jan Ove Helander, Björn Bårdsen, Bård Jørgen Boertmann, David Dietz, Rune Jaspers, Veerle L.B. Labansen, Aili Lage Lepoint, Gilles Schulz, Ralf Søndergaard, Jens Sonne, Christian Thorup, Kasper Tøttrup, Anders P. Zubrod, Jochen P. Eens, Marcel Eulaers, Igor |
author_facet |
Sun, Jiachen Bustnes, Jan Ove Helander, Björn Bårdsen, Bård Jørgen Boertmann, David Dietz, Rune Jaspers, Veerle L.B. Labansen, Aili Lage Lepoint, Gilles Schulz, Ralf Søndergaard, Jens Sonne, Christian Thorup, Kasper Tøttrup, Anders P. Zubrod, Jochen P. Eens, Marcel Eulaers, Igor |
author_sort |
Sun, Jiachen |
title |
Temporal trends of mercury differ across three northern white-tailed eagle (Haliaeetus albicilla) subpopulations |
title_short |
Temporal trends of mercury differ across three northern white-tailed eagle (Haliaeetus albicilla) subpopulations |
title_full |
Temporal trends of mercury differ across three northern white-tailed eagle (Haliaeetus albicilla) subpopulations |
title_fullStr |
Temporal trends of mercury differ across three northern white-tailed eagle (Haliaeetus albicilla) subpopulations |
title_full_unstemmed |
Temporal trends of mercury differ across three northern white-tailed eagle (Haliaeetus albicilla) subpopulations |
title_sort |
temporal trends of mercury differ across three northern white-tailed eagle (haliaeetus albicilla) subpopulations |
publishDate |
2019 |
url |
https://pure.au.dk/portal/en/publications/1d1ddb49-7780-482b-8507-cf479bece5c5 https://doi.org/10.1016/j.scitotenv.2019.06.027 http://www.scopus.com/inward/record.url?scp=85067188916&partnerID=8YFLogxK |
geographic |
Greenland Norway |
geographic_facet |
Greenland Norway |
genre |
Greenland Haliaeetus albicilla White-tailed eagle |
genre_facet |
Greenland Haliaeetus albicilla White-tailed eagle |
op_source |
Sun , J , Bustnes , J O , Helander , B , Bårdsen , B J , Boertmann , D , Dietz , R , Jaspers , V L B , Labansen , A L , Lepoint , G , Schulz , R , Søndergaard , J , Sonne , C , Thorup , K , Tøttrup , A P , Zubrod , J P , Eens , M & Eulaers , I 2019 , ' Temporal trends of mercury differ across three northern white-tailed eagle (Haliaeetus albicilla) subpopulations ' , Science of the Total Environment , vol. 687 , pp. 77-86 . https://doi.org/10.1016/j.scitotenv.2019.06.027 |
op_relation |
https://pure.au.dk/portal/en/publications/1d1ddb49-7780-482b-8507-cf479bece5c5 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.scitotenv.2019.06.027 |
container_title |
Science of The Total Environment |
container_volume |
687 |
container_start_page |
77 |
op_container_end_page |
86 |
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1789966220563316736 |