| Metal and metalloid concentrations in the eggs of threatened Florida scrub-jays in suburban habitat from south-central Florida. | |
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MedLine Citation:
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PMID: 15207583 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Monitoring and assessing changes in contaminants in urban and suburban environments is essential to assessing ecosystem well-being in human-influenced landscapes. We analyzed metal and metalloid levels in the eggs of the threatened Florida scrub-jay (Aphelocoma coerulescens), an extremely sedentary and modestly long-lived passerine bird that is federally threatened and endemic only in Florida. Eggs that failed to hatch were collected in a suburban environment to compare with the long-term study of this species at the Archbold Biological Station, located 8 km south in a more rural part of south-central Florida. Florida scrub-jays remain in a permanent territory in scrub oak habitat where they feed mainly on insects and acorns, but in suburban habitats human-provided foods comprise 30% of their diet. From the data previously collected at Archbold, and their low position on the food chain, we expected levels of contaminants to be comparatively low and remain relatively constant over time. Except for the low mercury value, all means were within the range of mean values reported for a wide range of non-passerine species (including those at higher tropic levels), are lower than concentrations associated with abnormalities in birds, and are lower than those previously reported for scrub-jays from Archbold Biological Station. A significant increase in selenium occurred from 1996 to 2001, but did not appear associated with changes in human density. |
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Authors:
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Joanna Burger; Reed Bowman; Glen E Woolfenden; Michael Gochfeld |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: The Science of the total environment Volume: 328 ISSN: 0048-9697 ISO Abbreviation: Sci. Total Environ. Publication Date: 2004 Jul |
Date Detail:
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Created Date: 2004-06-21 Completed Date: 2004-08-25 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0330500 Medline TA: Sci Total Environ Country: Netherlands |
Other Details:
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Languages: eng Pagination: 185-93 Citation Subset: IM |
Copyright Information:
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Copyright 2004 Elsevier B.V. |
Affiliation:
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Division of Life Sciences, Rutgers University, Piscataway, NJ 08854-8082, USA. burger@biology.rutgers.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Conservation of Natural Resources Environment* Environmental Monitoring / statistics & numerical data* Florida Metals, Heavy / analysis*, pharmacokinetics Ovum / chemistry* Songbirds / metabolism* Spectrophotometry, Atomic |
| Chemical | |
Reg. No./Substance:
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0/Metals, Heavy |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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