| Contamination of an arctic terrestrial food web with marine-derived persistent organic pollutants transported by breeding seabirds. | |
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MedLine Citation:
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PMID: 20801564 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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At Cape Vera, Devon Island (Nunavut, Canada), a colony of northern fulmars (Fulmarus glacialis) concentrates and releases contaminants through their guano to the environment. We determined whether persistent organic pollutants (POPs) from seabirds were transferred to coastal food webs. Snow buntings (Plectrophenax nivalis) were the most contaminated species, with ∑PCB and ∑DDT (mean: 168, 106 ng/g ww) concentrations surpassing environmental guidelines for protecting wildlife. When examined collectively, PCB congeners and DDT in jewel lichen (Xanthoria elegans) were lower in samples taken farther from the seabird colony, and increased with increasing δ(15)N values. However, only concentrations of p'p-DDE:∑DDT and PCB-95 were significantly correlated inversely with distance from the seabird cliffs. Linkages between marine-derived POPs and their concentrations in terrestrial mammals were less clear. Our study provides novel contaminant data for these species and supports biovector transport as a source of organic contaminants to certain components of the terrestrial food web. |
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Authors:
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Emily S Choy; Linda E Kimpe; Mark L Mallory; John P Smol; Jules M Blais |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Environmental pollution (Barking, Essex : 1987) Volume: 158 ISSN: 1873-6424 ISO Abbreviation: Environ. Pollut. Publication Date: 2010 Nov |
Date Detail:
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Created Date: 2010-09-14 Completed Date: 2010-12-27 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8804476 Medline TA: Environ Pollut Country: England |
Other Details:
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Languages: eng Pagination: 3431-8 Citation Subset: IM |
Copyright Information:
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Crown Copyright © 2010. Published by Elsevier Ltd. All rights reserved. |
Affiliation:
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Department of Biology, University of Ottawa, ON, Canada. echoy087@uottawa.ca |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Arctic Regions Birds DDT / analysis, metabolism Ecosystem Environmental Monitoring* Environmental Pollutants / analysis*, metabolism Feces / chemistry Food Chain* Gastrointestinal Contents / chemistry Lichens / chemistry Organic Chemicals / analysis*, metabolism Passeriformes Polychlorinated Biphenyls / analysis, metabolism |
| Chemical | |
Reg. No./Substance:
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0/Environmental Pollutants; 0/Organic Chemicals; 0/Polychlorinated Biphenyls; 50-29-3/DDT |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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