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    Author(s): David A. Orwig; David R. Foster
    Date: 2000
    Source: In: McManus, Katherine A.; Shields, Kathleen S.; Souto, Dennis R., eds. Proceedings: Symposium on sustainable management of hemlock ecosystems in eastern North America. Gen. Tech. Rep. NE-267. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 123-125.
    Publication Series: General Technical Report (GTR)
    Station: Northeastern Research Station
    PDF: View PDF  (255.12 KB)

    Description

    Hemlock woolly adelgid (HWA) (Adelges tsugae), an introduced aphid-like insect from Asia, is expanding across the northeastern United States through the range of eastern hemlock (Tsuga canadensis (L.) Carr.) and has the potential to severely reduce or eliminate this important late-successional species. While infestation and unimpeded migration of HWA presents a tremendous management problem, it also has provided an unusual opportunity to examine the impacts of an introduced pest as it spreads. In order to develop insights into these management issues, we have developed a multi-faceted research effort that examines various forest responses to HWA outbreaks in Connecticut including stand and community reorganization dynamics, landscape patterns of HWA infestation, damage, and hemlock mortality, microenvironmental changes and their impact on ecosystem processes, and the effect of cutting infested forests on successional and ecosystem dynamics. This paper presents an overview of this research, conducted by Harvard Forest scientists.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Orwig, David A.; Foster, David R. 2000. Stand, landscape, and ecosystem analyses of hemlock woolly adelgid outbreaks in southern New England: an overview. In: McManus, Katherine A.; Shields, Kathleen S.; Souto, Dennis R., eds. Proceedings: Symposium on sustainable management of hemlock ecosystems in eastern North America. Gen. Tech. Rep. NE-267. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 123-125.

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