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Keyword: Dendroctonus ponderosae

Tree response and mountain pine beetle attack preference, reproduction, and emergence timing in mixed whitebark and lodgepole pines

Publications Posted on: March 03, 2016
Mountain pine beetle (Dendroctonus ponderosae) is an important disturbance agent in Pinus ecosystems of western North America, historically causing significant tree mortality. Most recorded outbreaks have occurred in mid elevation lodgepole pine (Pinus contorta). In warm years, tree mortality also occurs at higher elevations in mixed species stands.

Woodpecker forage availability in habitat disturbances of the Black Hills

Publications Posted on: February 09, 2016
Habitat disturbance events are critical to ecological systems in which some bird species have become specialized. The vegetation community, reduced competition, ability to avoid predators, nest site characteristics, and forage opportunities within a disturbed ecosystem are all aspects that make it desirable for selection by particular species (Svardson 1949, Cody 1981, Martin 1998).

Influence of mountain pine beetle epidemic on winter habitat conditions for Merriam's turkeys: Management implications for current and future condition

Publications Posted on: February 01, 2016
Understanding response of ponderosa pine (Pinus ponderosa) forest development following a mountain pine beetle (MPB; Dendroctonus ponderosae) epidemic has important management implications for winter habitat conditions for Merriam’s wild turkeys (Meleagris gallopavo merriami; hereafter, turkeys).

Genetics influence the ability of mountain pine beetle to cope with a changing climate

Science Spotlights Posted on: September 30, 2015
Genetic differences in physiological pathways influenced by temperature impact how populations of mountain pine beetles respond to continually changing climate. The potential for adaptation to rapidly changing conditions could result in tree mortality in warm areas of the southwest U.S. where this insect has historically not been a major cause of tree mortality.

Emergence of Buprestidae, Cerambycidae, and Scolytinae (Coleoptera) from mountain pine beetle-killed and fire-killed ponderosa pines in the Black Hills, South Dakota, USA

Publications Posted on: July 08, 2015
Wood borers (Coleoptera: Cerambycidae and Buprestidae) and bark beetles (Coleoptera: Curculionidae) infest ponderosa pines, Pinus ponderosa P. Lawson and C. Lawson, killed by mountain pine beetle (MPB), Dendroctonus ponderosae Hopkins, and fire. No data is available comparing wood borer and bark beetle densities or species guilds associated with MPB-killed or fire-killed trees from the Black Hills of South Dakota, USA.

Water potential in ponderosa pine stands of different growing-stock levels

Publications Posted on: May 07, 2015
Water potential was measured in five ponderosa pine (Pinus ponderosa Laws.) in each of four stands of different growing-stock levels at two locations in the Black Hills of South Dakota. Mean water potentials at dawn and midday varied significantly among growing-stock levels at one location, but differences were not consistent.

Bark temperature patterns in ponderosa pine stands and their possible effects on mountain pine beetle behavior

Publications Posted on: May 07, 2015
Bark temperatures on the north and south sides of five ponderosa pines (Pinus ponderosa Laws.) in each of four growing stock levels in two areas in the Black Hills of South Dakota were monitored periodically from May through August 1989. Temperatures were significantly different among growing stock levels and between sides of the tree.

Mountain pine beetle-caused mortality over eight years in two pine hosts in mixed-conifer stands of the southern Rocky Mountains

Publications Posted on: March 26, 2015
Eruptive mountain pine beetle (Dendroctonus ponderosae, MPB) populations have caused widespread mortality of pines throughout western North America since the late 1990s. Early work by A.D. Hopkins suggested that when alternate host species are available, MPB will prefer to breed in the host to which it has become adapted.

Mountain pine beetle, a major disturbance agent in US Western coniferous forests: A synthesis of the state of knowledge [Research In Review]

Publications Posted on: September 19, 2014
In recent years, the mountain pine beetle, Dendroctonus ponderosae, has impacted 8.9 million hectares of forests in the western United States. Historically a common occurrence in western forests, particularly in lodgepole and ponderosa pine, the magnitude and extent of recent outbreaks have exceeded past events since written records are available and have occurred in areas where outbreaks were less common.

A comment on “Management for mountain pine beetle outbreak suppression: Does relevant science support current policy?"

Publications Posted on: September 19, 2014
There are two general approaches for reducing the negative impacts of mountain pine beetle, Dendroctonus ponderosae Hopkins, on forests. Direct control involves short-term tactics designed to address current infestations by manipulating mountain pine beetle populations, and includes the use of fire, insecticides, semiochemicals, sanitation harvests, or a combination of these treatments.