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Keyword: Pinus flexilis

An economical approach to distinguish genetically needles of limber from whitebark pine

Publications Posted on: August 10, 2020
Whitebark pine is difficult to distinguish from limber pine when seed cones are not present. This is often the case because of young stand age, growth at environmental extremes, or harvesting by vertebrate species. Developing an economical genetic identification tool that distinguishes non-cone-bearing limber from whitebark pine, therefore, could aid many kinds of research on these species.

A regional assessment of the ecological effects of chipping and mastication fuels reduction and forest restoration treatments.

Publications Posted on: December 04, 2019
Over the past several years, fire managers have increased their use of mastication treatments, the on-site disposal of shrubs and small-diameter trees through chipping and shredding. Mastication is a relatively untested management practice that alters the chemical and physical conditions of the forest floor and may influence vegetation regrowth and fuel development for years or decades.

Back from the brink: Framework to sustain resilience to species at risk

Science Spotlights Posted on: August 14, 2019
The Regeneration for Resilience (R4R) framework provides a decision structure to prioritize limited resources and utilize seedling planting and natural regeneration management to offer the best likelihood of success in positioning stands and landscapes to support resilience self-sustaining tree populations that are threatened by invasive pests. Effective management of forest regeneration dynamics can increase forest resilience and adaptive capacity to mitigate impacts of invasive species.

Limber pine (Pinus flexilis James) genetic map constructed by exome-seq provides insight into the evolution of disease resistance and a genomic resource for genomics-based breeding

Publications Posted on: May 16, 2019
Limber pine (Pinus flexilis) is a keystone species of high-elevation forest ecosystems of western North America, but some parts of the geographic range have high infection and mortality from the non-native white pine blister rust caused by Cronartium ribicola. Genetic maps can provide essential knowledge for understanding genetic disease resistance as well as local adaptation to changing climates.

Proactive limber pine conservation strategy for the Greater Rocky Mountain National Park Area

Publications Posted on: February 22, 2019
This proactive conservation strategy addresses the unique situation of limber pine in the Greater Rocky Mountain National Park Area (GRMNPA). The target area includes Rocky Mountain National Park and surrounding areas of northern Colorado and southern Wyoming.

Regeneration for resilience framework to support regeneration decisions for species with populations at risk of extirpation by white pine blister rust

Publications Posted on: October 05, 2018
Natural forests are increasingly invaded by nonnative pests and pathogens that threaten host species with population extirpation and cascading ecological impacts.

International Limber Pine Provenance Study (ILPPS): Rocky Mountain adaptive variation experiment

Projects Posted on: August 14, 2017
Limber pine is threatened by climate change, white pine blister, dwarf mistletoe, and mountain pine beetle. Scientists have planted limber pine in two contrasting environments to assess adaptive trait variation and plasticity, as well as climate interactions. Research such as the International Limber Pine Provenance Study (ILPPS) will support proactive managment to keep limber pine populations sustainable and prevent limber pine from following the same trajectory as whitebark pine.

Range-wide vulnerability of limber pine: White pine blister rust resistance and climate interactions

Projects Posted on: October 21, 2016
Forest surveys alone cannot predict species vulnerability as they cannot determine if the remaining healthy trees are at risk for disease or if they have heritable genetic resistance to support future populations. This project takes range-wide common garden (198 families) and artificial inoculation with Cronartium ribicola (causal agent of white pine blister rust) in order to better undertand host population vulnerability and sustainability.

Restoration planting options for limber pines in Colorado and Wyoming

Publications Posted on: September 30, 2016
Limber Pine (Pinus flexilis) populations in the southern Rocky Mountains are severely threatened by the combined impacts of mountain pine beetles and white pine blister rust. Limber pineʼs critical role in these high elevation ecosystems heightens the importance of mitigating these impacts.

Resistance to white pine blister rust in Pinus flexilis and P

Publications Posted on: September 30, 2016
The non-native fungus Cronartium ribicola, that causes white pine blister rust (WPBR), is impacting or threatening limber pine, Pinus flexilis, and Rocky Mountain bristlecone pine, Pinus aristata. In the Southern Rockies, where the rust invasion is still expanding, we have the opportunity to be proactive and prepare the landscape for invasion.