Effects of Sevin-4-Oil, Dimilin and Orthene on forest birds in northeastern Oregon.

M. L. Richmond, C. J. Henny, R. L. Floyd, Robert W Mannan, D. B. Finch

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Abstract

Breeding bird density, species diversity, nesting success, brain cholinesterase activity, and presence of sick or dead birds were evaluated on control and treatment plots during the year of spraying and 1 yr after. No adverse effects were detected in the Dimilin plots, and no major effects in the Sevin-4-Oil plots, although 2 of 55 birds showed brain cholinesterase depression. In the Orthene plots, however, studies of brain cholinesterase activity showed severe and prolonged depression (commonly 30-50%) for up to at least 33 days. Abnormal behavior symptomatic of organophosphate poisoning was also observed.-from US Govt Reports Announcements, 24, 1981

Original languageEnglish (US)
JournalUS Department of Agriculture, Forest Service, Research Paper
Issue numberPSW-148
StatePublished - Jan 1 1979
Externally publishedYes

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brain
bird
oil
nesting success
organophosphate
poisoning
species diversity
effect
breeding bird

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

Cite this

Effects of Sevin-4-Oil, Dimilin and Orthene on forest birds in northeastern Oregon. / Richmond, M. L.; Henny, C. J.; Floyd, R. L.; Mannan, Robert W; Finch, D. B.

In: US Department of Agriculture, Forest Service, Research Paper, No. PSW-148, 01.01.1979.

Research output: Contribution to journalArticle

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