Document Detail

Polybrominated diphenyl ether (PBDE) levels in peregrine falcon (Falco peregrinus) eggs from California correlate with diet and human population density.
MedLine Citation:
PMID:  20540532     Owner:  NLM     Status:  MEDLINE    
Peregrine falcons are now considered a conservation success story due in part to the phasing out of harmful contaminants that adversely affected reproduction. Recent studies have shown that peregrine eggs collected from California cities, however, have high levels of the higher-brominated polybrominated diphenyl ethers (SigmaPBDE(183-209)), a class of industrial flame retardants, in comparison to published data for other wildlife. Sources of these high PBDE levels and unusual PBDE profiles are unknown. Here we analyzed the stable carbon (delta(13)C), hydrogen (deltaD), and nitrogen (delta(15)N) isotope composition of peregrine eggs collected from urban and nonurban habitats. We found that delta(13)C values were significantly higher in urban versus nonurban eggs, suggesting that urban peregrines indirectly receive anthropogenic subsidies via their consumption of prey reliant on corn-based anthropogenic foods. delta(15)N and deltaD values were significantly lower in urban versus nonurban eggs, reflecting differences in dietary diversity and food/water sources available to peregrines in each habitat. These patterns suggest a link between an anthropogenic diet and high levels of SigmaPBDE(183-209) in California peregrines, and identify anthropogenic food as a potentially important PBDE exposure pathway for urban wildlife. If diet is an important PBDE exposure pathway for peregrines, continued high body burdens of SigmaPBDE(183-209) may be a potential risk to ongoing peregrine conservation efforts in California.
Seth D Newsome; June-Soo Park; Bill W Henry; Arthur Holden; Marilyn L Fogel; Janet Linthicum; Vivian Chu; Kim Hooper
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Environmental science & technology     Volume:  44     ISSN:  0013-936X     ISO Abbreviation:  Environ. Sci. Technol.     Publication Date:  2010 Jul 
Date Detail:
Created Date:  2010-06-29     Completed Date:  2010-09-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0213155     Medline TA:  Environ Sci Technol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  5248-55     Citation Subset:  IM    
Department of Zoology and Physiology, University of Wyoming, Laramie, Wyoming 82071, USA.
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MeSH Terms
Carbon Isotopes / chemistry
Deuterium / chemistry
Environmental Monitoring / methods
Environmental Pollutants / analysis
Falconiformes / metabolism*
Flame Retardants
Halogenated Diphenyl Ethers / chemistry*
Nitrogen Isotopes / chemistry
Population Density
Reg. No./Substance:
0/Carbon Isotopes; 0/Environmental Pollutants; 0/Flame Retardants; 0/Halogenated Diphenyl Ethers; 0/Nitrogen Isotopes; 32534-81-9/pentabromodiphenyl ether; 7782-39-0/Deuterium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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