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Keyword: mountain pine beetles

Differing ponderosa pine forest structures, their growth and yield, and mountain pine beetle impacts: Growing stock levels in the Black Hills

Publications Posted on: July 16, 2019
Clifford A. Myers conceived the ponderosa pine growing stock levels (GSL) study in 1961 and completed installation of the study in 1963 in western South Dakota on the Black Hills Experimental Forest (BHEF). The GSL concept was intended to help plan, implement, and illustrate tree thinning strategies (from below) in even-aged stands. A GSL is the suggested tree density (i.e., trees and basal area per acre) based on d.b.h.

Effect of downed trees on harvesting productivity and costs in beetle-killed stands

Publications Posted on: January 10, 2018
The mountain pine beetle (Dendroctonus ponderosae) has affected millions of acres of forests in the Rocky Mountain region in the United States. This study quantified the difficulty of harvesting beetle-killed stands caused by downed trees. A detailed time study was conducted on a whole-tree clearcut harvest using a ground-based system in western Montana in August 2015.

Restoration planting options for limber pines impacted by mountain pine beetles and/or white pine blister rust in the Southern Rocky Mountains

Publications Posted on: September 30, 2016
Limber Pine (Pinus flexilis) populations in the southern Rock Mountains are severely threatened by the combined impacts of mountain pine beetles and white pine blister rust. Limber pine’s critical role these high elevation ecosystems heightens the importance of mitigating impacts.

Herbivory induction thinning technique (HITT): Emulating forest structure complexity with a new forestry technique

Projects Posted on: August 23, 2016
Since 1996, bark beetles and fires have affected 155 million forested acres across the West. Homogenous forest conditions resulting from the widespread outbreak could set the stage for similar events about 80 years from now. New management techniques are needed to create more resilient future forests. RMRS scientist explores the controlled use of native forest insects to alter forest structure and promote more resilient forest conditions.

Future Forests Webinar Series

Events Posted on: March 15, 2016
The Future Forests Webinar Series facilitated dialogue between scientists and managers about the challenges and opportunities created by the mountain pine beetle (MPB) epidemic. The series consisted of six webinar facilitated by the USFS Rocky Mountain Research Station, the Northern and Rocky Mountain Regions, and the Colorado Forest Restoration Institute.

Mountain pine beetle impacts on fire behavior

Science Spotlights Posted on: October 05, 2015
Beetle-killed trees lose their needles over time, and once all the needles have dropped, crown fire danger largely disappears. However, red-needled trees have lower foliar moisture contents than healthy trees, which leads to increased crown fire potential. This research provides insights into the potential use of fuel treatments in beetle-killed forests, increases firefighter awareness of dangerous situations, and assists managers in identifying areas at high risk for ignition and extreme fire behavior.

Mild winters not causing all mountain pine beetle outbreaks in western U.S.

FS News Posted on: August 12, 2015
What is really driving mountain pine beetle population outbreaks in the U.S.? A new study shows increasing minimum winter temperatures explain some, but not all outbreaks.

Identifying "redtops": Classification of satellite imagery for tracking mountain pine beetle progression through a pine forest

Publications Posted on: May 21, 2013
Mountain pine beetles (Dendroctonus ponderosae Hopkins) are a pest indigenous to the pine forests of the western United States. Capable of exponential population growth, mountain pine beetles can destroy thousands of acres of trees in a short period of time.