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DDE, DDT + dieldrin: Residues in American kestrels and relations to reproduction

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DDE, DDT + dieldrin: Residues in American kestrels and relations to reproduction; 1986; Federal Government Series; 6; Wiemeyer, S.N.;Porter, R.D.;Hensler, G.L.;Maestrelli, J.R.

Summary

Captive American kestrels (Falco sparverius) given long-term dietary dosages of DDT and dieldrin in combination, at low and high rates, were compared with controls to determine the effects of the toxicants on reproductive success and eggshell thickness. Additional kestrels were dosed with DDE to determine its effect on shell thickness. Tissues of birds that died or were sacrificed, and eggs, were analyzed for DDE, DDD, DDT, and dieldrin. Eight paired birds, mostly males, given a high dosage of DDT + dieldrin died of dieldrin poisoning. Three periods of heavy mortality involving only dosed birds, which occurred in summer 1966, fall 1967, and spring 1968, followed temperature declines and other stress factors. Organochlorine concentrations [...]

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Type Scheme Key
local-index unknown 5230188
local-pk unknown 5230188
series unknown Fish and Wildlife Technical Report

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journalFish and Wildlife Technical Report
languageEnglish
citationTypeReport

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