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. 1982 Dec 17;218(4578):1232-5.
doi: 10.1126/science.7146905.

Ban of DDT and subsequent recovery of Reproduction in bald eagles

J W Grier

Ban of DDT and subsequent recovery of Reproduction in bald eagles

J W Grier. Science. .

Abstract

Reproduction of bald eagles in northwestern Ontario declined from 1.26 young per breeding area in 1966 to a low of 0.46 in 1974 and then increased to 1.12 in 1981. Residues of DDE in addled eggs showed a significant inverse relation, confirming the effects of this toxicant on bald eagle reproduction at the population level and the effectiveness of the ban on DDT. The recovery from DDE contamination in bald eagles appears to be occurring much more rapidly than predicted.

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