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MacCluskie, Margaret C.

One of the proposed explanations for the recent continental decline in Lesser Scaup (Aythya affinis) populations is that females experience lower survival or reproduction resulting from exposure to contaminants in their diet of exotic bivalves during migration and over winter. In 1999, we collected eggs and females from five sites in the boreal forest of Canada and Alaska and four sites in Canadian parkland. We analyzed eggs from 60 clutches and ten nesting females for toxic metals, selenium, 19 pesticides and other organochlorines, and 43 polychlorinated biphenyl (PCB) congeners. The highest organochlorine concentration we measured was 1.5 ?g g?1 ww of DDE in eggs. The highest mercury concentration was 1.8 ?g g?1...
Categories: Publication; Types: Citation; Tags: B5-Lesser Scaup, M1-Birds
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