globalchange  > 气候变化事实与影响
DOI: 10.1021/acs.est.8b07106
WOS记录号: WOS:000460709100027
论文题名:
Climate Influence on Legacy Organochlorine Pollutants in Arctic Seabirds
作者: Foster, Karen L.1,2; Braune, Birgit M.3; Gaston, Anthony J.3; Mallory, Mark L.4
通讯作者: Foster, Karen L.
刊名: ENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN: 0013-936X
EISSN: 1520-5851
出版年: 2019
卷: 53, 期:5, 页码:2518-2528
语种: 英语
WOS关键词: PERSISTENT ORGANIC POLLUTANTS ; MURRES URIA-LOMVIA ; FULMARS FULMARUS-GLACIALIS ; TEMPORAL TRENDS ; POLYCHLORINATED-BIPHENYLS ; POTENTIAL INFLUENCE ; GLOBAL DISTRIBUTION ; CONTAMINANTS ; DIET ; VARIABILITY
WOS学科分类: Engineering, Environmental ; Environmental Sciences
WOS研究方向: Engineering ; Environmental Sciences & Ecology
英文摘要:

Changing climate can influence the transport of chemical pollutants into Arctic regions and their fate once there. However, the influence of weather or climate variables on organochlorine accumulation in Arctic wildlife, including seabirds, and associated time scale are poorly understood. We assessed the interannual relationships between a suite of weather/climate variables for time lags of 0 to 10 yr and organochlorine pollutant concentrations spanning 1975-2014 in eggs of two seabird species (northern fulmar Fulmarus glacialis, thick-billed murre Uria lomvia) that breed in the Canadian High Arctic. The majority of variability in the data was associated with declining organochlorine emissions (up to 70.2% for murres and 77.4% for fulmars). By controlling for emissions using principal component ordination and general linear modeling, correlations with the North Atlantic Oscillation (NAO) were found for fulmars and with rainfall for murres, after a time lag of 4-9 yr between weather/climate conditions and egg collection. Our results suggest that with increasingly NAO+ conditions and increasing rainfall associated with climate change, concentrations of certain organochlorines such as hexachlorobenzene and p,p'-DDE have increased, dependent on seabird species and ecology as well as partitioning characteristics of the chemical. Analysis of a truncated version of the data sets (2005-2014), consistent with typical time series lengths for environmental pollutants in Arctic wildlife, found correlations with precipitation for murres but not with NAO for fulmars, suggesting that longer time series better elucidate relationships with broad-scale climate indices. Organochlorine pollutant data sets spanning 40 years, which is rare for Arctic wildlife, for two species of seabird were assessed, and the results highlight the association between weather/climate and pollutant accumulation in Arctic food webs and the critical role of ongoing monitoring to effectively elucidate these relationships.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/131796
Appears in Collections:气候变化事实与影响

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作者单位: 1.Karen Foster Environm Res, Peterborough, ON K9J 8L2, Canada
2.Trent Univ, Applicat Modelling & Quantitat Methods AMOD, Peterborough, ON K9L 0G2, Canada
3.Carleton Univ, Environm & Climate Change Canada, Natl Wildlife Res Ctr, Ottawa, ON K1A 0H3, Canada
4.Acadia Univ, Dept Biol, Wolfville, NS B4P 2R6, Canada

Recommended Citation:
Foster, Karen L.,Braune, Birgit M.,Gaston, Anthony J.,et al. Climate Influence on Legacy Organochlorine Pollutants in Arctic Seabirds[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2019-01-01,53(5):2518-2528
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