Effects of the herbicide glyphosate on bird community structure, western Oregon.
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About 23% of total plant cover was initially damaged by aerial application of glyphosate. Most measures of vegetation on the treated site decreased relative to the untreated site 1 yr after glyphosate application. By 2 yr post-spray, vegetation on the treated site had recovered to near pre-spray status. No difference in density of the bird community was evident between treated and untreated sites during all years of study although individual species densities were modified. Several bird species decreased their use of shrub cover, and increased their use of deciduous trees 1 yr after treatment. By 2 yr post-spray, many species had returned to pre-spray use of most measured habitat components. -from Authors
