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Keyword: Dendroctonus ponderosae

Complexities in predicting mountain pine beetle and spruce beetle response to climate change [Chapter 2]

Publications Posted on: September 19, 2022
Mountain pine beetle (Dendroctonus ponderosae) and spruce beetle (D. rufipennis) are two significant native tree mortality agents with expansive distributions throughout North America. The range of spruce beetle is considered coincident with Picea across North America.

Does the legacy of historical thinning treatments foster resilience to bark beetle outbreaks in subalpine forests?

Publications Posted on: September 19, 2022
Promoting ecological resilience to increasing disturbance activity is a key management priority under warming climate. Across the Northern Hemisphere, tree mortality from widespread bark beetle outbreaks raises concerns for how forest management can foster resilience to future outbreaks.

Great Basin bristlecone pine mortality: Causal factors and management implications

Publications Posted on: May 06, 2022
High-elevation five-needle pines are foundational species and iconic components of subalpine forests across western North America. Because they often grow at environmental extremes, high-elevation pines are vulnerable to changing climate conditions.

Mountain pine beetle and Great Basin bristlecone pine: A complicated story

Publications Posted on: March 29, 2022
During the 1990s through 2010 bark beetle-caused tree mortality was a hot news topic in the western United States (US). An estimated > 5 Mha were affected by multiple bark beetle species. A large proportion of the total tree mortality, however, was attributable to a single species, the mountain pine beetle (MPB, Dendroctonus ponderosae Coleoptera: Curculionidae, Scolytinae).

Rocky Mountain bristlecone pine (Pinus aristata) is a confirmed host to mountain pine beetle (Dendroctonus ponderosae)

Publications Posted on: October 01, 2021
Mountain pine beetle (MPB) (Dendroctonus ponderosae Hopkins) is a native bark beetle that reproduces in pine (Pinus) species across western North America. High population levels can result in widespread host tree mortality. Over the past 2 decades, MPB has been responsible for pine mortality across millions of forested hectares in the western United States.

Bark beetle outbreaks influence understory plants and invasive weeds

Science Spotlights Posted on: August 23, 2021
Bark beetle outbreaks alter forests in many ways, but the effects outbreaks have on understory vegetation are poorly understood despite the importance for overstory succession, nutrient cycling, water quality, soil erosion, and wildlife. Beetle outbreaks can also change forests in ways that could promote invasion by nonnative weeds, but this is rarely studied. Forest Service scientists assessed changes in understory vegetation and invasive weeds in lodgepole pine forests in the Northern Rockies following recent mountain pine beetle outbreaks.

Dynamics of beetle-killed snags following mountain pine beetle outbreaks in lodgepole pine forests

Publications Posted on: January 05, 2021
Snags (standing dead trees) are important components of forest ecosystems that, among other benefits, provide critical habitat for many species of wildlife, but also represent important safety concerns to firefighters, forest workers, and the public. We identified factors that influence the fall rates of lodgepole pines, Pinus contorta Dougl.

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".

Within-stand spatial distribution of ponderosa pine mortality caused by the mountain pine beetle in the Colorado Front Range

Datasets Posted on: December 30, 2020
This data publication includes data collected in support of a study to examine the small scale, within stand, spatially-referenced ponderosa pine (Pinus ponderosa) tree mortality caused by the mountain pine beetle (Dendroctonus ponderosae) in a Colorado Front Range site.

Mountain pine beetle-caused mortality in thinned and unthinned ponderosa pine stands in the Black Hills, USA

Datasets Posted on: December 30, 2020
This data publication includes data collected in support of a study to evaluate whether stand density reductions in ponderosa pine (Pinus ponderosa) stands in the Black Hills National Forest of South Dakota and Wyoming resulted in reduced tree mortality levels caused by the mountain pine beetle (Dendroctonus ponderosae) (Negron et al. 2017). Data were collected in the summer of 2014 in 21 pairs of commercially thinned and unthinned stands.

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