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Bird Predation and Spruce Budworm Populations

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In northern New England, numbers of birds and amounts of budworm (Choristoneura fumiferana) larvae and pupae eaten per bird increased as insect populations increased. Birds ate approximately 2, 23, and 87 percent of the epidemic, transitional, and endemic populations. Blackburnian and Nashville warblers, golden-crowned kinglets, white-throated sparrows, and black-capped chickadees were important predators in stands with endemic budworm populations. Bird communities most effective as budworm predators are found in mature managed forests containing a mix of species and size classes with scattered openings and patches of regeneration.

Document Type: Journal Article

Affiliations: Research Entomologist with the USDA Forest Service's Northeastern Forest Experiment Station, USDA Building, University of Maine, Orono 04469

Publication date: July 1, 1983

More about this publication?
  • The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the Journal has received several national awards for excellence. The mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry: economics, education and communication, entomology and pathology, fire, forest ecology, geospatial technologies, history, international forestry, measurements, policy, recreation, silviculture, social sciences, soils and hydrology, urban and community forestry, utilization and engineering, and wildlife management. The Journal is published bimonthly: January, March, May, July, September, and November.
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