| Assessment of lead uptake in reptilian prey species. | |
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MedLine Citation:
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PMID: 17490716 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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As part of an investigation determining the trophically available fraction of metals in a model terrestrial food web, i.e., invertebrate prey to Western fence lizards (Sceloporus occidentalis), we evaluated the ability of several invertebrate prey to bioaccumulate lead and to form metals-rich granules, which are hypothesized to be non-available to predators. Crickets (Acheta domestica), tenebroid beetle larvae (Tenebrio molitor), and isopods (Porcellio scaber) were selected as model prey organisms. Lack of standard exposure methodologies for these species has presented a barrier to trophic transfer evaluations, as each species has particular requirements that create challenges for designing exposure conditions. We were able to devise exposure conditions for all three species that allow long-term exposure studies. All prey organisms accumulated lead from contaminated food, and for all species the majority of the accumulated Pb was associated with the exoskeleton (>50%), with metals-rich granules accounting for most of the remaining accumulated lead. |
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Authors:
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Laura S Inouye; Leslie J Yoo; Larry G Talent; Joan U Clarke; Robert P Jones; Jeffery A Steevens; Robert E Boyd |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. Date: 2007-05-08 |
Journal Detail:
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Title: Chemosphere Volume: 68 ISSN: 0045-6535 ISO Abbreviation: Chemosphere Publication Date: 2007 Jul |
Date Detail:
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Created Date: 2007-06-04 Completed Date: 2007-09-14 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0320657 Medline TA: Chemosphere Country: England |
Other Details:
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Languages: eng Pagination: 1591-6 Citation Subset: IM |
Affiliation:
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US Army Corps of Engineers, Engineer Research and Development Center, 3909 Halls Ferry Road, Vicksburg, MS 39180, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animal Feed Animals Arthropods / metabolism* Body Burden Environmental Pollutants / analysis, pharmacokinetics* Food Chain Lead / analysis, pharmacokinetics* Lizards / metabolism* Species Specificity |
| Chemical | |
Reg. No./Substance:
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0/Environmental Pollutants; 7439-92-1/Lead |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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