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Keyword: cheatgrass

Region 4 Science Partner Programs: Cheatgrass seedling reduction for restoration of native sagebrush grassland plant communities

Projects Posted on: March 25, 2019
RMRS scientists have teamed up with managers and researchers at Bridger-Teton National Forest and Colorado State University to compare herbicide treatments to reduce cheatgrass seedlings, allowing restoration of Native Sagebrush Grassland Plant Communities. ​

Niche specialization in Bromus tectorum seed bank pathogens

Publications Posted on: December 06, 2018
Niche theory predicts that when two species exhibit major niche overlap, one will eventually be eliminated through competitive exclusion. Thus, some degree of niche specialization is required to facilitate coexistence. We examined whether two important seed bank pathogens on the invasive winter annual grass Bromus tectorum (cheatgrass, downy brome) exhibit niche specialization. These pathogens utilize seed resources in complementary ways.

Vegetation dynamics at the woodland-shrubland interface: Role of climate, disturbance, and species interactions

Publications Posted on: October 05, 2018
The boundary between woodlands and shrublands delineates the distribution of the tree biome in many regions across the globe. Woodlands and shrublands interface at multiple spatial scales, and many ecological processes operate at different spatial scales to determine the position of the woodland-shrubland boundary.

A conservation planning tool for Greater Sage-grouse using indices of species distribution, resilience, and resistance

Publications Posted on: July 10, 2018
Managers require quantitative yet tractable tools that identify areas for restoration yielding effective benefits for targeted wildlife species and the ecosystems they inhabit.

Advancing evaluation of resilience to disturbance and resistance to exotic annual grass invasion in the Great Basin

Projects Posted on: May 10, 2018
We will deliver a spatially explicit predictive tool depicting resilience to disturbance and resistance to cheatgrass (Bromus tectorum) invasion across the Great Basin.

GSD Update: Year in Review: Spotlight on 2017 Research by the Grassland, Shrubland and Desert Ecosystems Science Program

Publications Posted on: April 10, 2018
In this issue of the GSD Update, we feature selected studies of the RMRS Grassland, Shrubland and Desert Ecosystems Science Program (GSD) that focus on the theme of fire. Significant results of recent research and science delivery by GSD scientists are highlighted. We feature program research that lines up with the strategic priorities and goals of the USDA Forest Service (USFS).

Development of remote sensing indicators for mapping episodic die-off of an invasive annual grass (Bromus tectorum) from the Landsat archive

Publications Posted on: September 25, 2017
The exotic annual grass Bromus tectorum (cheatgrass) dominates vast acreages of rangeland in the western USA, leading to increased fire frequency and ecosystem degradation that is often irreversible.

GSD Update: Year in Review: Spotlight on 2016 Research by the Grassland, Shrubland and Desert Ecosystems Science Program

Publications Posted on: July 19, 2017
In this issue of the GSD Update, we take a look back at selected studies of the Grassland, Shrubland and Desert Ecosystems Science Program (GSD) that depict its strengths and focus areas. Significant results of recent research and science delivery by GSD scientists are highlighted. We feature program research that lines up with the strategic priorities of the USDA Forest Service and the Rocky Mountain Research Station (RMRS).

Population genetic structure of Bromus tectorum in the mountains of western North America

Publications Posted on: June 22, 2017
PREMISE OF THE STUDY: Invasive species are often initially restricted to a narrow range and may then expand through any of multiple mechanisms including phenotypic plasticity, in situ evolution, or selection on traits preadapted for new habitats. Our study used population genetics to explore possible processes by which the highly selfing invasive annual grass Bromus tectorum has expanded into montane environments.

Development of single-nucleotide polymorphism markers for Bromus tectorum (Poaceae) from a partially sequenced transcriptome

Publications Posted on: January 12, 2017
Premise of the study: Bromus tectorum (Poaceae) is an annual grass species that is invasive in many areas of the world but most especially in the U.S. Intermountain West. Single-nucleotide polymorphism (SNP) markers were developed for use in investigating the geospatial and ecological diversity of B. tectorum in the Intermountain West to better understand the mechanisms behind its successful invasion.

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