Multicentury reconstruction of western spruce budworm outbreaks in central British Columbia, Canada
نویسنده
چکیده
British Columbia Ministry of Forests, Lands, Natural Resource Operations, Cariboo Forest Region, Williams Lake, British Columbia V2G 4T1, Canada University of Victoria Tree-Ring Laboratory, Department of Geography, University of Victoria, Victoria, British Columbia V8W 3R4, Canada c Tree-Ring Lab at UBC, Department of Forest and Conservation Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada Canadian Forest Service, Pacific Forestry Centre, Victoria, British Columbia V8Z 1M5, Canada
منابع مشابه
Western Spruce Budworm Outbreak History
Western spruce budworm (Choristoneura occidentalis Freeman) outbreak history was reconstructed for the Sacramento Mountains of south -central New Mexico, at the southern limit of the species distribution range. Six host tree -ring width chronologies (Douglas -fir and white fir) and three non -host control chronologies (ponderosa pine) were used for this reconstruction spanning from 1800 to 1990...
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Douglas-fir forests in the interior Pacific Northwest are subject to sporadic outbreaks of the western spruce budworm, a species widely recognized as the most destructive defoliator in western North Amer-ica. Outbreaks of the western spruce budworm often occur synchronously over broad regions and lead to widespread loss of leaf area and decrease in growth rates in affected stands. In spite of t...
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