| Mercury bioaccumulation and trophic transfer in the terrestrial food web of a montane forest. | |
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MedLine Citation:
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PMID: 19960247 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We investigated mercury (Hg) concentrations in a terrestrial food web in high elevation forests in Vermont. Hg concentrations increased from autotrophic organisms to herbivores < detritivores < omnivores < carnivores. Within the carnivores studied, raptors had higher blood Hg concentrations than their songbird prey. The Hg concentration in the blood of the focal study species, Bicknell's thrush (Catharus bicknelli), varied over the course of the summer in response to a diet shift related to changing availability of arthropod prey. The Bicknell's thrush food web is more detrital-based (with higher Hg concentrations) in early summer and more foliage-based (with lower Hg concentrations) during late summer. There were significant year effects in different ecosystem compartments indicating a possible connection between atmospheric Hg deposition, detrital-layer Hg concentrations, arthropod Hg concentrations, and passerine blood Hg concentrations. |
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Authors:
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Christopher C Rimmer; Eric K Miller; Kent P McFarland; Robert J Taylor; Steven D Faccio |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. Date: 2009-12-04 |
Journal Detail:
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Title: Ecotoxicology (London, England) Volume: 19 ISSN: 1573-3017 ISO Abbreviation: Ecotoxicology Publication Date: 2010 Apr |
Date Detail:
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Created Date: 2010-03-25 Completed Date: 2010-06-10 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9885956 Medline TA: Ecotoxicology Country: United States |
Other Details:
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Languages: eng Pagination: 697-709 Citation Subset: IM |
Affiliation:
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Vermont Center for Ecostudies, P.O. Box 420, Norwich, VT 05055, USA. crimmer@vtecostudies.org |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Arthropods / metabolism Biodiversity Body Burden Diet Environmental Monitoring Environmental Pollutants / blood, metabolism* Feeding Behavior Female Food Chain* Male Methylmercury Compounds / blood, metabolism* Plant Leaves / chemistry Predatory Behavior Raptors / metabolism Seasons Soil / analysis Soil Pollutants / metabolism Songbirds / blood, metabolism* Trees* Urodela / metabolism Vermont |
| Chemical | |
Reg. No./Substance:
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0/Environmental Pollutants; 0/Methylmercury Compounds; 0/Soil; 0/Soil Pollutants |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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