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Regeneration of Fraser Fir at Mt. Mitchell, North Carolina, After Depredations by the Balsam Woolly Adelgid

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Abstract:

The long-term ecological consequences of balsam woolly adelgid (Adelges piceae (Ratzeburg)) damage to Fraser fir (Abies fraseri (Pursh) Poir.) are considered. Study areas were established and vegetation sampled during 1966 in western North Carolina near and on Mt. Mitchell in each of three forest types: fir, spruce-fir, and spruce-fir-hardwood. Study areas were resampled in 1978. In 1966, mortality caused by the balsam woolly adelgid on Fraser fir stems over 244 cm tall averaged 82, 98, and 95 percent in the fir, spruce-fir, and spruce-fir-hardwood types, respectively. The average number of live Fraser fir seedlings per hectare for all study areas in 1966 and 1978 were 25,809 and 14,026, respectively. The height class distribution of Fraser fir seedlings changed dramatically with approximately 1 percent of the trees over 61-cm tall in 1966, and 75 percent over 61-cm tall in 1978. The fir, spruce-fir, and spruce-fir-hardwood types are well-stocked with Fraser fir regeneration and fir should be an important species in all three forest types in the future. Forest Sci. 32:585-594.

Keywords: Abies fraseri; Adelges piceae; atmospheric deposition; red spruce; spruce-fir decline

Document Type: Journal Article

Affiliations: Forest Entomologist, USDA Forest Service, Pacific Northwest Region, Portland, OR 97208

Publication date: 1986-09-01

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2015 Impact Factor: 1.702
    Ranking: 16 of 66 in forestry

    Average time from submission to first decision: 62.5 days*
    June 1, 2016 to Feb. 28, 2017

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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