Breach of the northern Rocky Mountain geoclimatic barrier: initiation of range expansion by the mountain pine beetle
نویسندگان
چکیده
Examining the spatio-temporal attributes of populations of invasive organisms can provide insights into their rates and patterns of spread, which in turn can suggest mechanisms driving their establishment and persistence (Peterson & Vieglais, 2001). Climate plays a central role in many invasion events, by impacting host distribution (Iverson & Prasad, Natural Resources and Environmental Sciences, University of Northern British Columbia, 3333 University Way, Prince George, BC V2N 4Z9, Canada, Nursing Research Office, Faculty of Nursing, University of Alberta, 4-103 Clinical Science Building, 116 St and 85 Ave, Edmonton, AB T6G 2R3, Canada, Department of Forest Sciences, University of British Columbia, 2424 Main Mall, Vancouver, BC V6T 1Z4, Canada, Department of Entomology, University of Minnesota, 1980 Folwell Avenue, St. Paul, MN 55108, USA
منابع مشابه
Separating Trends in Whitebark Pine Radial Growth Related to Climate and Mountain Pine Beetle Outbreaks in the Northern Rocky Mountains, USA
Drought and mountain pine beetle (Dendroctonus ponderosae Hopkins) outbreaks have affected millions of hectares of high-elevation conifer forests in the Northern Rocky Mountains during the past century. Little research has examined the distinction between mountain pine beetle outbreaks and climatic influence on radial growth in endangered whitebark pine (Pinus albicaulis Engelm.) ecosystems. We...
متن کاملHow the Mountain Pine Beetle (Dendroctonus ponderosae) Breached the Canadian Rocky Mountains
The mountain pine beetle (MPB; Dendroctonus ponderosae Hopkins), a major pine forest pest native to western North America, has extended its range north and eastward during an ongoing outbreak. Determining how the MPB has expanded its range to breach putative barriers, whether physical (nonforested prairie and high elevation of the Rocky Mountains) or climatic (extreme continental climate where ...
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Over 18 million ha of forests have been destroyed in the past decade in Canada by the mountain pine beetle (MPB) and its fungal symbionts. Understanding their population dynamics is critical to improving modeling of beetle epidemics and providing potential clues to predict population expansion. Leptographium longiclavatum and Grosmannia clavigera are fungal symbionts of MPB that aid the beetle ...
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Background Lodgepole pine (Pinus contorta Dougl. ex Loud. var. latifolia) is found in western North America, extending from the Yukon into British Columbia and Washington, and along the Rocky Mountains and eastern slopes to Colorado [1]. Jack pine (Pinus banksiana Lamb.) is a closely related species found east of the Rockies, mainly in Canada’s boreal forest from the Northwest Territories to Qu...
متن کاملMountain pine beetle host-range expansion threatens the boreal forest
The current epidemic of the mountain pine beetle (MPB), an indigenous pest of western North American pine, has resulted in significant losses of lodgepole pine. The leading edge has reached Alberta where forest composition shifts from lodgepole to jack pine through a hybrid zone. The susceptibility of jack pine to MPB is a major concern, but there has been no evidence of host-range expansion, i...
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