Evaluation Of Risk Assessment Of Mountain Pine Beetle Infestations

Author : Caren C. Dymond
Publisher : Unknown
Page : 20 pages
File Size : 52,7 Mb
Release : 2007
Category : Nature
ISBN : MINN:31951D02376444I

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Evaluation of Risk Assessment of Mountain Pine Beetle Infestations by Caren C. Dymond Pdf

This study is part of a series of research papers that explore the biological, social, and economic aspects of British Columbia's mountain pine beetle epidemic. In this paper, an established decision support system was evaluated for operational use. Digital forest inventory and beetle-impact survey data were integrated in standard GIS software for rating susceptibility and risk of mountain pine beetle infestation. The beetle-impact data, collected over a three-year period, provided an opportunity to generate risk on a given year and compare it to attacks in the subsequent year.--Includes text from Government of Canada publications site and from document.

Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 42,7 Mb
Release : 2008
Category : Mountain pine beetle
ISBN : 1100103430

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Risk Assessment of the Threat of Mountain Pine Beetle to Canada's Boreal and Eastern Pine Forests by Anonim Pdf

Author : Vincent Graham Nealis,Barry Cooke
Publisher : Unknown
Page : 27 pages
File Size : 52,5 Mb
Release : 2014
Category : Electronic books
ISBN : 1100233016

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Risk Assessment of the Threat of Mountain Pine Beetle to Canada's Boreal and Eastern Pine Forests by Vincent Graham Nealis,Barry Cooke Pdf

Introduction -- Dispersal and patterns of range expansion -- Relationship of spread to forest -- Relationship to spread of climate suitability -- Relationship between mountain pine beetle nad its ecological associates -- Impacts -- Risk of fire -- References -- Appendix 1.

Author : Walter E. Cole
Publisher : Unknown
Page : 12 pages
File Size : 52,5 Mb
Release : 1983
Category : Lodgepole pine
ISBN : UIUC:30112104125940

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Harvesting Strategies for Management of Mountain Pine Beetle Infestations in Lodgepole Pine by Walter E. Cole Pdf

Author : Michael A. Wulder
Publisher : Unknown
Page : 28 pages
File Size : 49,7 Mb
Release : 2007
Category : Nature
ISBN : MINN:31951D02376445G

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Calculating Risk of Mountain Pine Beetle Attack by Michael A. Wulder Pdf

This study is part of a series of research papers that explore the biological, social, and economic aspects of British Columbia's mountain pine beetle epidemic. The objective of this study is to compare two different approaches for calculating beetle pressure, and to assess the impact these approaches have on the subsequent calculation of risk ratings. To meet this objective, beetle pressure was calculated using the traditional distance-based model, as well as using an alternative density-based model, implemented with a Voronoi tessellation generated from helicopter-GPS point survey data of known beetle infestation locations.--Includes text from document.

Author : Colin Robertson
Publisher : Unknown
Page : 34 pages
File Size : 49,9 Mb
Release : 2009
Category : Forest management
ISBN : MINN:31951D030260801

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Preliminary Risk Rating for Mountain Pine Beetle Infestation of Lodgepole Pine Forests Over Large Areas with Ordinal Regression Modelling by Colin Robertson Pdf

In western Canada, the operational risk rating system for mountain pine beetle is based on biological knowledge gained from a rich legacy of stand-scale field studies. Owing to the large spatial and temporal extents of the current epidemic, new research into large-area mountain pine beetle processes has revealed further insights into the landscape-scale characteristics of beetle infested forests. This research evaluates the potential for this new knowledge to augment an established system for rating the short-term risk of tree mortality in a stand due to mountain pine beetle.--Publisher's website.

Author : Walter E. Cole,Gene D. Amman
Publisher : Unknown
Page : 8 pages
File Size : 51,9 Mb
Release : 1969
Category : Forests and forestry
ISBN : UIUC:30112104065344

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Mountain Pine Beetle Infestations in Relation to Lodgepole Pine Diameters by Walter E. Cole,Gene D. Amman Pdf

Tree losses resulting from infestation by the mountain pine beetle (Dendroctonus ponderosae Hopkins) were measured in two stands of lodgepole pine (Pinus contorta Dougl.) where the beetle population had previously been epidemic. Measurement data showed that larger diameter trees were infested and killed first. Tree losses ranged from 1 percent of trees 4 inches (d.b.h.) to 87 percent of those 16 inches and greater d.b.h. Numbers of adult beetle emergence holes averaged 1.3 per square foot of bark area in trees 7 inches d.b.h. and 62 in trees 28 inches and greater d.b.h. The observations indicate that large infestations of mountain pine beetle depend on the presence of large diameter trees within a stand of lodgepole pine, thus implying that beetle population growth is food-limited.

Author : Pacific Forestry Centre,Mountain Pine Beetle Initiative (Canada)
Publisher : Unknown
Page : 308 pages
File Size : 51,6 Mb
Release : 2004
Category : Nature
ISBN : CORNELL:31924101517682

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Mountain Pine Beetle Symposium by Pacific Forestry Centre,Mountain Pine Beetle Initiative (Canada) Pdf

The S2Mountain Pine Beetle Symposium: Challenges and SolutionsS3 was held in Kelowna, British Columbia, Canada on October 30-31, 2003. This meeting was organized by Natural Resources Canada, Canadian Forest Service, Pacific Forestry Centre and funded through the Government of Canada Mountain Pine Beetle Initiative. Approximately 250 people representing the forest industry, consultants, universities, provincial and federal government agencies, First Nations, and the general public, from both Canada and the United States attended the meeting. Thirty presentations were given describing the current mountain pine beetle situation (in British Columbia, Alberta and the western United States) and its management and economic implications. Researchers presented the latest information on remote sensing, decision support systems, impacts on stand dynamics and wildlife, phytosanitary risks, climate change effects and preventive management as they relate to mountain pine beetle.

Author : Walter E. Cole
Publisher : Unknown
Page : 24 pages
File Size : 46,6 Mb
Release : 1983
Category : Mountain pine beetle
ISBN : MINN:31951D02889265Y

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Estimating the Rate and Amount of Tree Loss from Mountain Pine Beetle Infestations by Walter E. Cole Pdf

Author : Dale L. Bartos
Publisher : Unknown
Page : 12 pages
File Size : 48,5 Mb
Release : 1998
Category : Forests and forestry
ISBN : OSU:32435066565292

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Characteristics of Endemic-level Mountain Pine Beetle Populations in South-central Wyoming by Dale L. Bartos Pdf

This study was conducted to evaluate the dynamics of endemic populations of mountain pine beetle (Dendroctonus ponderosae Hopkins). In addition, we extended the geographical range of an existing data base recorded in Utah with similar data from Wyoming. This work was accomplished in lodgepole pine (Pinus contorta Dougl. Var. latifolia Engelm.) stands on the Medicine Bow National Forest in south-central Wyoming. Thirty-eight variable-radius paired plots (BAF 10) were measured during the summer of 1987. Host-tree condition and mountain pine beetle infestation characteristics were determined from currently and previously infested trees. Presence and severity of Armillaria root disease and stem pathogens was determined. Tree condition and infestation patterns were similar at this site to those found in earlier studies. Trees selected by endemic mountain pine beetle populations were infested with Comandra blister rust (Cronartium Comandra PK) and root disease (Armillaria spp.). Host-tree condition and mountain pine beetle infestation patterns recorded in this study parallel those identified earlier in Utah and will help land managers identify trees to cut to reduce stand hazard to mountain pine beetle infestation.

Author : David C. Chojnacky
Publisher : Unknown
Page : 16 pages
File Size : 49,9 Mb
Release : 2000
Category : Mountain pine beetle
ISBN : MINN:31951D03001933B

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Mountain Pine Beetle Attack in Ponderosa Pine: Comparing Methods for Rating Susceptibility by David C. Chojnacky Pdf

Two empirical methods for rating susceptibility of mountain pine beetle attack in ponderosa pine were evaluated. The methods were compared to stand data modeled to objectively rate each sampled stand for susceptibly to bark-beetle attack. Data on bark-beetle attacks, from a survey of 45 sites throughout the Colorado Plateau, were modeled using logistic regression to estimate the probability of attack on individual trees from tree and stand variables. The logistic model allowed flexibility to easily scale results up to a stand level for comparison to the empirical methods. The empirical method, developed by Munson and Anhold, most closely correlated to the logistic regression results. However, the Munson/Anhold method rated all 45 study sites as either moderately or highly susceptible to bark-beetle attack, which raises concern about its lack of sensitivity. Future work on evaluating risk of bark-beetle impact should consider more than stand characteristics.

Author : Michael A. Wulder,Caren C. Dymond,Bob Erickson,Pacific Forestry Centre
Publisher : Canadian Government Publishing
Page : 24 pages
File Size : 53,5 Mb
Release : 2004-01-01
Category : Aerial surveys in forestry
ISBN : 0662380312

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Detection and Monitoring of the Mountain Pine Beetle by Michael A. Wulder,Caren C. Dymond,Bob Erickson,Pacific Forestry Centre Pdf

Author : Brian H. Aukema,Mountain Pine Beetle Initiative (Canada)
Publisher : Unknown
Page : 36 pages
File Size : 43,6 Mb
Release : 2010
Category : Aerial surveys in forestry
ISBN : MINN:31951D03026082X

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Landscape-level Analysis of Mountain Pine Beetle in British Columbia by Brian H. Aukema,Mountain Pine Beetle Initiative (Canada) Pdf

Author : Colin Robertson
Publisher : Unknown
Page : 50 pages
File Size : 46,5 Mb
Release : 2007
Category : Mountain pine beetle
ISBN : MINN:31951D02791503D

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Exploring the Spatial-temporal Interaction of Mountain Pine Beetle Infestations by Colin Robertson Pdf

This study is part of a series of research papers that explore the biological, social, and economic aspects of British Columbia's mountain pine beetle epidemic. It examines mountain pine beetle (Dendroctonus ponderosae Hopkins) dispersal processes, which drive the spatial and temporal development of outbreaks. Understanding these processes is important for modelling future infestations and guiding forest management decisions. In this study, the spatial patterns of red- and green-attacked trees were used to characterize the spatial-temporal nature of dispersal. Research aims were to detect evidence of dispersal based on the distance and direction between red- and green-attacked tree clusters, determine how dispersal patterns change at different stages of infestation, and to detect landscape variables influencing the observed dispersal patterns. Variables explored included Biogeoclimatic ecosystem classification (BEC), topography, and the local population of susceptible hosts.--Includes text from Government of Canada publications site and from document.

Author : Pacific Forestry Centre,Mountain Pine Beetle Initiative (Canada)
Publisher : Unknown
Page : 304 pages
File Size : 55,8 Mb
Release : 2006
Category : Forest management
ISBN : 0662426231

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The Mountain Pine Beetle by Pacific Forestry Centre,Mountain Pine Beetle Initiative (Canada) Pdf

"This book presents a synthesis of published information on mountain pine beetle (Dendroctonus ponderosae Hopkins [Coleoptera: Scolytidae]) biology and management with an emphasis on lodgepole pine (Pinus contorta Dougl. ex Loud. var. latifolia Engelm.) forests of western Canada. Intended as a reference for researchers as well as forest managers, the book covers three main subject areas: mountain pine beetle biology, management, and socioeconomic concerns. The chapters on biology cover taxonomy, life history and habits, distribution, insect-host tree interactions, development and survival, epidemiology, and outbreak history. The management section covers management strategy, survey and detection, proactive and preventive management, and decision support tools. The chapters on socioeconomic aspects include an economic examination of management programs and the utilization of post-beetle salvage timber in solid wood, panelboard, pulp and paper products."--Publisher's description.