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Keyword: five-needle pine

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.

Range-wide conservation of Pinus aristata: A genetic collection with ecological context for proactive management today and resources for tomorrow

Publications Posted on: May 24, 2017
Tree species are highly vulnerable to anthropogenic environmental change, and are increasingly being challenged by non-native pests and climate change. Rocky Mountain bristlecone pines are long-lived, exhibit delayed maturation, have low genetic diversity, and inhabit cold, high-elevation environments.

Potential for maladaptation during active management of limber pine

Science Spotlights Posted on: September 12, 2016
Active management is needed to sustain healthy limber pine (Pinus flexilis) forests in the southern Rocky Mountains as they are threatened by the interaction of the mountain pine beetle (Dendroctonus ponderosae) epidemic, climate change, and the spread of the non-native pathogen that causes white pine blister rust disease (Cronartium ribicola). Movement of seedlings with disease resistance from northern to southern Colorado may result in planting failure. Identification of genotypes resistant to white pine blister rust in the southern Rockies is needed at the finer scale of a national forest scale rather than the region.       

Restoration planting options for limber pine (Pinus flexilis James) in the Southern Rocky Mountains

Publications Posted on: August 30, 2016
Limber pine Pinus flexilis James populations in the southern Rocky Mountains are threatened by the combined impacts of mountain pine beetles and white pine blister rust. To develop restoration planting methods, six P. flexilis seedling planting trial sites were installed along a geographic gradient from southern Wyoming to southern Colorado.

Partnership to conserve mountaintop ecosystems

Science Spotlights Posted on: August 19, 2015
Interagency collaboration between the U.S. Forest Service and the National Park Service has resulted in the development of programs to conserve and promote self-sustaining five-needle pine ecosystems in the presence of white pine blister rust using available tools and methods that are compatible with land use designations.

Great Basin bristlecone pine (Pinus longaeva) climate change and wildfire vulnerability assessment and multi-scale genetic structure analysis

Projects Posted on: April 16, 2015
Variation in composition, structure,  recruitment history, and genetic heterozygosity are being assessed for Great Basin bristlecone pine stands across the full geographic and ecological range of distribution.

Demographic projection of high-elevation white pines infected with white pine blister rust: a nonlinear disease model

Publications Posted on: April 04, 2012
Matrix population models have long been used to examine and predict the fate of threatened populations. However, the majority of these efforts concentrate on long-term equilibrium dynamics of linear systems and their underlying assumptions and, therefore, omit the analysis of transience. Since management decisions are typically concerned with the short term (

Regeneration of Rocky Mountain bristlecone pine (Pinus aristata) and limber pine (Pinus flexilis) three decades after stand-replacing fires

Publications Posted on: February 02, 2009
Rocky Mountain bristlecone pine (Pinus aristata) and limber pine (Pinus flexilis) are important highelevation pines of the southern Rockies that are forecast to decline due to the recent spread of white pine blister rust (Cronartium ribicola) into this region.