Regeneration of Fraser Fir at Mt. Mitchell, North Carolina, After Depredations by the Balsam Woolly Adelgid
Authors: Witter, John A.; Ragenovich, Iral R.
Source: Forest Science, Volume 32, Number 3, 1 September 1986 , pp. 585-594(10)
Publisher: Society of American Foresters
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.
Document Type: Journal Article
Affiliations: Forest Entomologist, USDA Forest Service, Pacific Northwest Region, Portland, OR 97208
Publication date: 1986-09-01
- 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.
- Membership Information
- ingentaconnect is not responsible for the content or availability of external websites