Mountain Pine Beetle Infestations In Relation To Lodgepole Pine Diameters

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Mountain Pine Beetle Infestations in Relation to Lodgepole Pine Diameters

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

Author : Walter E. Cole,Gene D. Amman
Publisher : Unknown
Page : 8 pages
File Size : 44,9 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.

Mountain Pine Beetle Infestations in Relation to Lodgepole Pine Diameters (Classic Reprint)

Walter E. Cole
Mountain Pine Beetle Infestations in Relation to Lodgepole Pine Diameters Classic Reprint Book PDF

Author : Walter E. Cole
Publisher : Forgotten Books
Page : 22 pages
File Size : 43,6 Mb
Release : 2017-11-19
Category : Science
ISBN : 0260646814

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Mountain Pine Beetle Infestations in Relation to Lodgepole Pine Diameters (Classic Reprint) by Walter E. Cole Pdf

Excerpt from Mountain Pine Beetle Infestations in Relation to Lodgepole Pine Diameters In the plots within one 2-mile-square unit, the numbers of emergence holes were counted on two 6-inch - square areas of bark selected at random at diameter breast height on each tree that had been killed by the mountain pine beetle. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Growth of Lodgepole Pine Stands and Its Relation to Mountain Pine Beetle Susceptibility

S. A. Mata
Growth of Lodgepole Pine Stands and Its Relation to Mountain Pine Beetle Susceptibility Book PDF

Author : S. A. Mata
Publisher : Unknown
Page : 24 pages
File Size : 49,9 Mb
Release : 2003
Category : Forests and forestry
ISBN : MINN:31951D03001922G

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Growth of Lodgepole Pine Stands and Its Relation to Mountain Pine Beetle Susceptibility by S. A. Mata Pdf

Periodic diameter and basal area growth were determined for partially cut stands of lodgepole pine at five locations over approximately 10 year periods. After cutting, average diameters in the partially cut plots generally increased by 0.8 inches or more, while average diameter in the uncut controls increased by 0.6 inches or less. Diameter growth in the partially cut plots was generally significantly greater than diameter growth in the controls. Individual tree growth is discussed in relation to potential susceptibility to mountain pine beetle infestation. Basal area decreased in three of the four GSL (growing stock level) 40 stands because of windthrow. Basal area generally increased >1.0 ft 2 / acre/year in partially cut plots except in the GSL 40 stands with substantial windthrow and one GSL 100 with an Armillaria infection pocket. Basal area increases in the control plots ranged from 0.2 to 1.1 ft 2 /acre/year, although the one control with a BA growth rate of 1.1 ft 2 /acre/year had a relatively low initial BA. Data from the stands are employed in the susceptibility rating methods of Amman et al.(1977), Shore and Safranyik (1992),and Anhold et al. (1996 to determine stand susceptibility and the results discussed in terms of general applicability of these methods to partially cut stands. Basal area growth is used to estimate the length of time required for various stand densities to reach specific susceptibility thresholds for mountain pine beetle infestation. Several of the GSL 40 stands are not projected to reach the susceptibility thresholds in 100 years because of windthrow. Barring mortality 1%,GSL 80 stands are estimated to reach the basal area threshold of 120 ft 2 per acre in

Mountain Pine Beetle Dynamics in Lodgepole Pine Forests

Walter E. Cole,Gene D. Amman
Mountain Pine Beetle Dynamics in Lodgepole Pine Forests Book PDF

Author : Walter E. Cole,Gene D. Amman
Publisher : Unknown
Page : 64 pages
File Size : 43,8 Mb
Release : 1980
Category : Insect pests
ISBN : MINN:31951D03001275N

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Mountain Pine Beetle Dynamics in Lodgepole Pine Forests by Walter E. Cole,Gene D. Amman Pdf

The Mountain Pine Beetle

Pacific Forestry Centre,Mountain Pine Beetle Initiative (Canada)
The Mountain Pine Beetle Book PDF

Author : Pacific Forestry Centre,Mountain Pine Beetle Initiative (Canada)
Publisher : Unknown
Page : 304 pages
File Size : 45,9 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.

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

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

Author : Colin Robertson
Publisher : Unknown
Page : 34 pages
File Size : 41,6 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.

Mountain Pine Beetle Symposium

Pacific Forestry Centre,Mountain Pine Beetle Initiative (Canada)
Mountain Pine Beetle Symposium Book PDF

Author : Pacific Forestry Centre,Mountain Pine Beetle Initiative (Canada)
Publisher : Unknown
Page : 308 pages
File Size : 42,6 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.