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Accession Number 5001881

Title Effects of PCBs on reproduction and biomarker responses in Tree swallows at

contaminated sites in the Eastern Region

Project Description Most of the studies of the harmful effects of PCBs on birds have involved piscivorus or other high

level predators. Little has been done to evaluate other species, at inland sites, as to whether they

are harmed by PCBs or whether they could serve as sentinel species for PCBs at small suspect

sites. Techniques and information are needed to enable resource managers to evaluate potential

harm to wildlife at relatively small inland sites contaminated with PCBs. We are studying the

effects of environmental exposure to PCBs on reproduction and a variety of biochemical and

biological systems in order to determine whether there is harm to the birds and to develop and

field validate biomarkers for PCB exposure. A document directed to resource managers will be

prepared based on this study alone or jointly on this study and the related mammalian study


Keywords biomarkers, pcbs, reproduction, tree swallows,

Principal Mark J Melancon, USGS Patuxent Wildlife Research Center:; Barnett

Investigators A Rattner, USGS Patuxent Wildlife Research Center:; David J

Hoffman, USGS Patuxent Wildlife Research Center:; Craig Hulse,

USGS Patuxent Wildlife Research Center:;

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