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Keyword: mountain pine beetle

Conifer snagfall data in bark-beetle infested subalpine forests at the Fraser Experimental Forest, Colorado, USA

Datasets Posted on: December 30, 2020
This data publication contains data directly associated with Rhoades et al. (IN PRESS), "Snagfall the first decade after severe bark beetle infestation of high-elevation forests in Colorado, USA".

Tree-ring growth and stable-carbon isotope response data to forest restoration treatments in ponderosa pine forests of the Lick Creek Demonstration-Research Forest, Bitterroot National Forest, Montana, USA

Datasets Posted on: December 30, 2020
This data publication includes the data used in "Forest restoration treatments in a ponderosa pine forest enhance physiological activity and growth under climatic stress" by Tepley et al. (2020).

Whitebark pine (Pinus albicaulis) growth and defense in response to mountain pine beetle outbreaks

Publications Posted on: October 01, 2020
Whitebark pine (WBP; Pinus albicaulis) is a critical keystone forest species of U.S. Northern Rocky Mountain subalpine ecosystems (Tomback et al. 2001).

The 'Goldilocks Principle' applies to mountain pine beetle and climate change

Science Spotlights Posted on: September 02, 2020
A generation time of 1 year is the most successful strategy for mountain pine beetle, a notable tree killer in the western U.S. However, generations time is dictated by temperature, which is changing globally. Because locally evolved adaptations in mountain pine beetle have resulted in strict physiological requirements for temperature regimes at specific times of the year, population persistence will be dependent on temperature changes that are not too hot, but just right.

Rocky Mountain bristlecone pine is a confirmed host for mountain pine beetle

Science Spotlights Posted on: September 02, 2020
The mountain pine beetle is the most notable killer of pines in western North America. Bristlecone pines grow at high elevations and are among the longest-lived conifers globally.  Although the bristlecone species Great Basin bristlecone and foxtail pine appear to be less preferred by mountain pine beetle and may not be suitable for mountain pine beetle offspring success, their close relative Rocky Mountain bristlecone is now a confirmed and suitable host. 

Can scents of high-elevation pines make sense of insect and disease resistance?

Science Spotlights Posted on: August 25, 2020
Pine trees emit characteristic and strong odors from their foliage. While aesthetically pleasing to humans, these volatile organic compounds serve many functions, including defense against insects and pathogens. We compared the odors from foliage of eight species of high-elevation five-needle pines in Europe and North America that vary in resistance to the mountain pine beetle and white pine blister rust and identified the most important compounds for classifying resistant and susceptible species.

Genetic variation among mountain pine beetle (Dendroctonus ponderosae) (Coleoptera: Scolytidae) populations from seven western states

Publications Posted on: August 10, 2020
The mountain pine beetle, Dendroctonus ponderosae Hopkins, exhibits variations in morphology, behavior, and physiology over its extensive range. Morphological variation is seen in size differences in beetles from different localities and in the surface sculpturing of various body parts. There are also apparent differences in host selection among populations.

Whitebark pine encroachment into lower-elevation sagebrush grasslands in southwest Montana, USA

Publications Posted on: August 10, 2020
Projections for the future health and abundance of whitebark pine (Pinus albicaulis Engelm.) populations in western North America are dire. Not only has the species been declining due to the combined effects of fire exclusion policies, mountain pine beetle (Dendroctonus ponderosae Hopkins 1902) outbreaks, and white pine blister rust (Cronartium ribicola J.C.

Still standing: Snagfall the first decade after severe bark beetle infestation

Science Spotlights Posted on: July 27, 2020
Post mountain pine beetle outbreak snagfall dynamics create a multiple decade legacy that will persist longer in high-elevation compared to lower-elevation forests.

Snagfall the first decade after severe bark beetle infestation of high elevation forests in Colorado, USA

Publications Posted on: June 18, 2020
The persistence and fall rate of snags (standing dead trees) generated during bark beetle outbreaks have consequences for the behavior, effects, and suppression of potential wildfires, hazard tree and timber salvage operations, wildlife habitat, and numerous ecosystem processes. However, post-beetle snagfall dynamics are poorly understood in most forest types.