Mountain Pine Beetle Dispersal Through Managed And Unmanaged Landscapes

Author : Mary Lynn Reid
Publisher : Unknown
Page : 28 pages
File Size : 48,5 Mb
Release : 2008
Category : Nature
ISBN : UIUC:30112101885488

Get Book

Mountain Pine Beetle Dispersal Through Managed and Unmanaged Landscapes by Mary Lynn Reid Pdf

This report examines the distribution of mountain pine beetles with respect to stand composition at various scales in terms of both tree species and density. It further examines how the body condition of mountain pine beetles varies across the landscape, and suggests that these findings may explain some discrepancies in the evaluation of the success of management practices in Banff National Park.

Author : Mary Lynn Reid
Publisher : Unknown
Page : 24 pages
File Size : 50,9 Mb
Release : 2007
Category : Fire ecology
ISBN : MINN:31951D02376437F

Get Book

Environmental Effects on Host Selection and Dispersal of Mountain Pine Beetle by Mary Lynn Reid 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 summarizes the results of a study on the landscape variation in lodgepole pine constitutive defences, primarily measured as resin production, but also as phloem monoterpene concentration. The response of pioneer mountain pine beetles to those defences is reviewed, measured by experimentally placing beetles on trees and by attacks of free-flying beetles; effects of beetle quality (size, condition) on the beetles' responses are also examined. Finally, the results on the dispersal of mountain pine beetles through a mature lodgepole pine stand and a burned stand are presented.--Includes text from Government of Canada publications site and from document.

Author : Brian H. Aukema,Mountain Pine Beetle Initiative (Canada)
Publisher : Unknown
Page : 36 pages
File Size : 42,5 Mb
Release : 2010
Category : Aerial surveys in forestry
ISBN : MINN:31951D03026082X

Get Book

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

Author : Pacific Forestry Centre,Mountain Pine Beetle Initiative (Canada)
Publisher : Unknown
Page : 308 pages
File Size : 45,6 Mb
Release : 2004
Category : Nature
ISBN : CORNELL:31924101517682

Get Book

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 : Colin Robertson
Publisher : Unknown
Page : 50 pages
File Size : 52,9 Mb
Release : 2007
Category : Mountain pine beetle
ISBN : MINN:31951D02791503D

Get Book

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 : Richard Roland Schneider
Publisher : Unknown
Page : 18 pages
File Size : 51,8 Mb
Release : 2009
Category : Forest management
ISBN : MINN:31951D030784784

Get Book

Modeling the Effects of a Mountain Pine Beetle Outbreak and Potential Management Responses in Alberta's Eastern Slopes by Richard Roland Schneider Pdf

We used a simulation model and two management scenarios to investigate possible effects of a severe mountain pine beetle (Dendroctonus ponderosae Hopkins) epidemic in Alberta, Canada. Our simulated outbreak was based on the current epidemic in British Columbia, which may kill close to 80% of the province's pine volume. Our two management scenarios were conventional harvest and a pine-reduction strategy modeled on a component of Alberta's Mountain Pine Beetle Management Strategy. The pine strategy seeks to reduce the number of susceptible pine stands by 75% over the next 20 years through targeted harvesting by the forest industry. Our simulations showed that the pine strategy could not be effectively implemented, even if the beetle outbreak was delayed for 20 years. Even though we increased mill capacity by 20% and directed all harvesting to high volume pine stands during the pine strategy's surge cut, the amount of highly susceptible pine was reduced by only 43%. Additional pine volume remained within mixed stands that were not targeted by the pine strategy. When the outbreak occurred in each scenario, sufficient pine remained on the landscape for the beetle to cause the timber supply to collapse. Alternative management approaches and avenues for future research are discussed.

Author : Anonim
Publisher : Unknown
Page : 22 pages
File Size : 43,9 Mb
Release : 2009
Category : Aerial surveys in forestry
ISBN : 1100146164

Get Book

Landscape-level Analysis of Mountain Pine Beetle in British Columbia by Anonim Pdf

Author : Marwan Hassan
Publisher : Unknown
Page : 46 pages
File Size : 41,5 Mb
Release : 2008
Category : Nature
ISBN : MINN:31951D02827221S

Get Book

Mountain Pine Beetle Impacts on Channel Morphology and Woody Debris in Forested Landscapes by Marwan Hassan 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 (MPB) epidemic. The objective of this report was to determine watershed-scale impacts of mountain pine beetles by comparing channel conditions and the woody debris budget in watersheds infested by the MPB with those from similar old-growth forests with pre-infestation channel and riparian data. The use of a woody debris budget directly links large-scale lodgepole pine mortality to stream challen and piparian processes and conditions at the landscape level. Eighteen watersheds in the Sub-Boreal Spruce and Sub-Boreal--Pine Spruce biogeoclimatic zones were considered. The results are used to generate regionally and locally relevant best management practices that will guide operational planning in landscapes impacted by the MPB.--Includes text from Government of Canada publications site and from document.

Author : Brad Seely
Publisher : Unknown
Page : 68 pages
File Size : 47,7 Mb
Release : 2008
Category : Nature
ISBN : MINN:31951D02782147A

Get Book

Exploring Opportunities for Mitigating the Ecological Impacts of Current and Future Mountain Pine Beetle Outbreaks Through Improved Planning by Brad Seely 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. Using an established modelling framework, the authors of this report conducted a scenario analysis exercise designed to explore opportunities to mitigate the ecological and economic impacts of mountain pine beetle (MPB) salvage for two possible outbreak severity levels in Canfor's Tree Farm License (TFL) 48 in northeastern British Columbia. This data was used to address the following questions: 1) What are the potential short and long-term impacts of different levels of MPB attack for indicators of sustainable forest management in northeastern British Columbia?; and 2) Assuming a reduction in landscape-level ecological and economic stocks, what management options are available that will maintain a profitable harvesting profile while sustaining ecological indicators? Additionally, results from the analysis were evaluated in the context of a range of ecological and economic indicators.--Includes text from Government of Canada publications site and from document.

Author : Fred L. Bunnell,L. L. Kremsater,Isabelle Houde
Publisher : Unknown
Page : 112 pages
File Size : 47,5 Mb
Release : 2011
Category : Forest management
ISBN : MINN:31951D03276084L

Get Book

Mountain Pine Beetle by Fred L. Bunnell,L. L. Kremsater,Isabelle Houde Pdf

This document provides a synthesis of recently completed studies to assess the ecological consequences of forest management after attack by mountain pine beetle or other large-scale disturbances. Studies are assessed for their contributions to gaps in knowledge previously identified in the Mountain Pine Beetle Initiative Working Paper "Evaluating effects of large scale salvage logging for mountain pine beetle on terrestrial and aquatic vertebrates," which was published in 2004. This report focuses on studies developed through the federal Mountain Pine Beetle Initiative, the federal Mountain Pine Beetle Program, and the complementary BC Forest Science Program. Relevant information from other jurisdictions is sometimes included to augment those studies. Topics examined are: the impacts of beetle kill and salvage operations on habitat attributes; the impacts of beetle kill and salvage operations on attendant processes, such as snag fall rates, light interception, and snow accumulation; and the wildlife response to large-scale beetle outbreaks and management strategies. For each of these three topics, we provide a summary of: research to date; pertinent findings to date; and gaps in research.

Author : J. M. Schmid
Publisher : Unknown
Page : 16 pages
File Size : 41,8 Mb
Release : 2005
Category : Black Hills National Forest (S.D. and Wyo.)
ISBN : MINN:31951D03001940E

Get Book

Mountain Pine Beetle-caused Tree Mortality in Partially Cut Plots Surrounded by Unmanaged Stands by J. M. Schmid Pdf

Author : Walter E. Cole,Gene D. Amman
Publisher : Unknown
Page : 8 pages
File Size : 41,7 Mb
Release : 1969
Category : Forests and forestry
ISBN : UIUC:30112104065344

Get Book

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 : Pamela Dykstra,T. F. Braumandl,Hawkes, B. C. (Brad C.),Pacific Forestry Centre
Publisher : Unknown
Page : 92 pages
File Size : 49,8 Mb
Release : 2006
Category : Ecological disturbances
ISBN : MINN:31951D02376322W

Get Book

Historic Influence of the Mountain Pine Beetle on Stand Dynamics in Canada's Rocky Mountain Parks by Pamela Dykstra,T. F. Braumandl,Hawkes, B. C. (Brad C.),Pacific Forestry Centre Pdf

The Canadian government announced the Mountain Pine Beetle Initiative (MPBI) in 2002 to address the socio-economic and ecological consequences of an epidemic of mountain pine beetle (Dendroctonus ponderosae Hopkins). The objective of this study was to establish baseline information on the ecological characteristics that occur at different stages of succession, resulting from mountain pine beetle disturbance at different time intervals. Key issues addressed by this study were: the post-beetle ecological character of stands; the ecological legacies that should be sought post-beetle; maintenance of ecological integrity in beetle-damaged landscapes; and the impacts of beetles on regeneration. This paper presents a study of stand conditions following two historic mountain pine beetle outbreaks events in the 1940s and 1980s. The study quantified structural and species composition of stands at different stages of succession (25 years and 65 years), and quantified the differences that occur in forest development between stands with and without disturbance by the beetle. It concludes with several recommendations for management of post-disturbance landscapes.

Author : Anonim
Publisher : Unknown
Page : 8 pages
File Size : 47,7 Mb
Release : 2009-04
Category : Forests and forestry
ISBN : WISC:89099183642

Get Book

Information Forestry by Anonim Pdf

Author : Alfaro, René I,Elizabeth Campbell,Hawkes, B. C. (Brad C.),Pacific Forestry Centre
Publisher : Unknown
Page : 128 pages
File Size : 48,5 Mb
Release : 2006
Category : Dendrochronology British Columbia
ISBN : 0662443403

Get Book

Historical Frequency, Intensity and Extent of Mountain Pine Beetle Disturbance on Landscapes in British Columbia by Alfaro, René I,Elizabeth Campbell,Hawkes, B. C. (Brad C.),Pacific Forestry Centre Pdf