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Keyword: bark beetle

Fire and bark beetle interactions

Publications Posted on: August 10, 2020
Wildland fire and bark beetle outbreaks are both large disturbances in North American forests with the potential to interact over spatial and temporal scales (Hicke et al. 2016; Raffa et al. 2008). The order of the disturbances, fire before bark beetles or fire after bark beetles, influences the outcome of the interaction.

Assessment and response to bark beetle outbreaks in the Rocky Mountain area

Publications Posted on: June 22, 2020
Bark beetles act as "agents of change" within the conifer forests of the Rocky Mountain area. They play a critical role in the development, senescence, and rebirth of Western forests. Bark beetle-caused tree mortality can be extensive, covering thousands of acres.

Tree regeneration and soil responses to management alternatives in beetle-infested lodgepole pine forests

Publications Posted on: June 18, 2020
Recent mountain pine beetle (Dendroctonus ponderosae; MPB) outbreaks have caused one of the most widespread and dramatic changes in forest condition in North American forests in more than a century and highlighted challenges facing resource managers.

Modeling mountain pine beetle (Dendroctonus ponderosae) oviposition

Publications Posted on: July 08, 2019
Mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Curculionidae, Scolytinae), is a significant forest disturbance agent with a widespread distribution in western North America. Population success is influenced by temperatures that drive phenology and ultimately the adult emergence synchrony required to mass attack and kill host trees during outbreaks.

Bark beetle infestation of western US forests: A context for assessing and evaluating impacts

Publications Posted on: June 14, 2019
Bark beetles are primary disturbance agents in western US forests. Outbreaks affect goods and services associated with forest ecosystems including timber, water, fish and wildlife habitats and populations, recreation opportunities, and many others. They can also affect wildfire behavior and its intensity.

Mountain pine beetles die young in world’s oldest tree species

FS News Posted on: June 28, 2018
A new study found that these trees not only repel mountain pine beetles; they also do not support the survival of the beetle’s offspring. This makes the Great Basin bristlecone pine distinct, as nearly all other pine species within mountain pine beetle’s native range in western North America have been shown to be susceptible hosts.

Evidence for a prepupal diapause in the mountain pine beetle (Dendroctonus ponderosae, Coleoptera: Curculionidae, Scolytinae)

Publications Posted on: June 01, 2018
Dormancy strategies, including diapause and quiescence, enable insects to evade adverse conditions and ensure seasonally appropriate life stages. A mechanistic understanding of a species’ dormancy is necessary to predict population response in a changing climate.

Drought, tree mortality, and wildfire in forests adapted to frequent fire

Publications Posted on: January 23, 2018
Massive tree mortality has occurred rapidly in frequent-fire-adapted forests of the Sierra Nevada, California. This mortality is a product of acute drought compounded by the long-established removal of a key ecosystem process: frequent, low- to moderate-intensity fire. The recent tree mortality has many implications for the future of these forests and the ecological goods and services they provide to society.

Prediction of forest canopy and surface fuels from lidar and satellite time series data in a bark beetle-affected forest

Publications Posted on: October 04, 2017
Wildfire behavior depends on the type, quantity, and condition of fuels, and the effect that bark beetle outbreaks have on fuels is a topic of current research and debate. Remote sensing can provide estimates of fuels across landscapes, although few studies have estimated surface fuels from remote sensing data.

Chapter 12: Forest fuels and predicted fire behavior in the first 5 years after a bark beetle outbreak with and without timber harvest (Project INT-EM-F-11-04)

Publications Posted on: January 12, 2017
Unprecedented levels of tree mortality from native bark beetle species have occurred in a variety of forest types in Western United States and Canada in recent decades in response to beetle-favorable forest and climatic conditions (Bentz 2009, Meddens and others 2012).

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