A Long-term Bird Census in Spruce Budworm-Prone Balsam fir Habitats in Northwestern New Brunswick
Date Published: 1978
Problem Addressed: Spruce Budworm
Goal(s)/Objective(s): Determine the effect of birds on spruce budworm populations
Key Findings: Birds are capable of exerting a strong predation pressure on preoutbreak populations of spruce budworm
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- Gage, S.H.
Canadian Forestry Service - Miller, C.A.
Canadian Forestry Service
A long-term bird census was conducted in five plots located in largely balsam fir stands of northwestern New Brunswick. During part of the 22-year census two of the plots were heavily infested with spruce budworm Choristoneura fumiferana (Clem.), and suffered extensive tree mortality. Nineteen bird species were common to all plots; differences in their densities, relative to forest cover and presence of budworm as a food supply, are presented.
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