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Keyword: Dendroctonus ponderosae

Reproductive isolation and environmental adaptation shape the phylogeography of mountain pine beetle (Dendroctonus ponderosa)

Publications Posted on: June 01, 2018
Chromosomal rearrangement can be an important mechanism driving population differentiation and incipient speciation. In the mountain pine beetle (MPB, Dendroctonus ponderosae), deletions on the Y chromosome that are polymorphic among populations are associated with reproductive incompatibility.

Limber Pine and White Pine Blister Rust Monitoring and Assessment Guide for Rocky Mountain National Park

Publications Posted on: May 31, 2018
Limber pine, designated by Rocky Mountain National Park (RMNP) as a Species of Management Concern, is a keystone species that maintains ecosystem structure, function, and biodiversity.

Growth and survival before and after a mountain pine beetle outbreak in a ponderosa pine genetic trial

Datasets Posted on: March 15, 2018
This data package contains data used for the publication "An insect outbreak shifts the direction of selection from fast to slow growth rates in the long-lived conifer Pinus ponderosa" (de la Mata et al. 2017). The study includes measurements from 204 half-sibling families planted in a common garden experiment planted in 1974 and last measured in 2013.

Probability of infestation and extent of mortality models for mountain pine beetle in lodgepole pine forests in Colorado

Publications Posted on: December 05, 2017
The mountain pine beetle, Dendroctonus ponderosae Hopkins, is a significant agent of tree mortality in lodgepole pine (Pinus contorta Dougl. ex Loud.) forests throughout western North America. A large outbreak of mountain pine beetle caused extensive tree mortality in north-central Colorado beginning in the late 1990s.

Thinning reduces mountain pine beetle-caused tree mortality

Science Spotlights Posted on: October 12, 2017
The mountain pine beetle is an important bark beetle associated with ponderosa pine in the Black Hills. Episodic outbreaks can result in extensive tree mortality compromising ecosystem services. Strategies are needed to mitigate mortality levels where appropriate. This study sampled stands ranging from 35 acres to 365 acres and were widely distributed across the 6,000 square miles of the Black Hills.  

Large-scale thinning, ponderosa pine, and mountain pine beetle in the Black Hills, USA

Publications Posted on: July 20, 2017
Mountain pine beetle (Dendroctonus ponderosae Hopkins) (MPB), can cause extensive ponderosa pine (Pinus ponderosa Dougl. ex Laws.) mortality in the Black Hills of South Dakota and Wyoming, USA. Lower tree densities have been associated with reduced MPB-caused tree mortality, but few studies have reported on large-scale thinning and most data come from small plots that may not be representative of a large area.

Insect outbreak shifts the direction of selection from fast to slow growth rates in the long-lived conifer Pinus ponderosa

Publications Posted on: July 19, 2017
Long generation times limit species' rapid evolution to changing environments. Trees provide critical global ecosystem services, but are under increasing risk of mortality because of climate change-mediated disturbances, such as insect outbreaks. The extent to which disturbance changes the dynamics and strength of selection is unknown, but has important implications on the evolutionary potential of tree populations.

Mountain pine beetle dynamics and reproductive success in post-fire lodgepole and ponderosa pine forests in northeastern Utah

Publications Posted on: January 30, 2017
Fire injury can increase tree susceptibility to some bark beetles (Curculionidae, Scolytinae), but whether wildfires can trigger outbreaks of species such as mountain pine beetle (Dendroctonus ponderosae Hopkins) is not well understood. We monitored 1173 lodgepole (Pinus contorta var. latifolia Doug.) and 599 ponderosa (Pinus ponderosa Doug.

Severity of a mountain pine beetle outbreak across a range of stand conditions in Fraser Experimental Forest, Colorado, United States

Publications Posted on: January 24, 2017
The recent mountain pine beetle (Dendroctonus ponderosae Hopkins) outbreaks had unprecedented effects on lodgepole pine (Pinus contorta var. latifolia) in western North America. We used data from 165 forest inventory plots to analyze stand conditions that regulate lodgepole pine mortality across a wide range of stand structure and species composition at the Fraser Experimental Forest in Colorado, USA.

Mountain pine beetle host selection between lodgepole and ponderosa pines in the southern Rocky Mountains

Publications Posted on: October 04, 2016
Recent evidence of range expansion and host transition by mountain pine beetle (Dendroctonus ponderosae Hopkins; MPB) has suggested that MPB may not primarily breed in their natal host, but will switch hosts to an alternate tree species. As MPB populations expanded in lodgepole pine forests in the southern Rocky Mountains, we investigated the potential for movement into adjacent ponderosa pine forests.

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