Document Detail


Contamination of an arctic terrestrial food web with marine-derived persistent organic pollutants transported by breeding seabirds.
MedLine Citation:
PMID:  20801564     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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.
Authors:
Emily S Choy; Linda E Kimpe; Mark L Mallory; John P Smol; Jules M Blais
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Environmental pollution (Barking, Essex : 1987)     Volume:  158     ISSN:  1873-6424     ISO Abbreviation:  Environ. Pollut.     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-09-14     Completed Date:  2010-12-27     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8804476     Medline TA:  Environ Pollut     Country:  England    
Other Details:
Languages:  eng     Pagination:  3431-8     Citation Subset:  IM    
Copyright Information:
Crown Copyright © 2010. Published by Elsevier Ltd. All rights reserved.
Affiliation:
Department of Biology, University of Ottawa, ON, Canada. echoy087@uottawa.ca
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MeSH Terms
Descriptor/Qualifier:
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:
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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