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Science. 1969 Jul 11;165(3889):199-200.

Dieldrin and DDT: effects on sparrow hawk eggshells and reproduction.

Abstract

Patterns of reproductive failure in declining populations of several European and North American raptorial species were duplicated experimentally with captive American sparrow hawks Falco sparvcrius that were given a diet containing two commonly used organochlorine insecticides. Major effects on reproduction were increased egg disappearance, increased egg destruction by parent birds, and reduced eggshell thickness.

PMID:
5815079
[PubMed - indexed for MEDLINE]
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