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Keyword: Great Basin

Fire, livestock grazing, topography, and precipitation affect occurrence and prevalence of cheatgrass (Bromus tectorum) in the central Great Basin, USA

Publications Posted on: December 11, 2020
Cheatgrass (Bromus tectorum) has increased the extent and frequency of fire and negatively affected native plant and animal species across the Intermountain West (USA). However, the strengths of association between cheatgrass occurrence or abundance and fire, livestock grazing, and precipitation are not well understood.

Characterizing ecoregions and montane perennial watersheds of the Great Basin

Publications Posted on: November 18, 2020
Multiple research and management partners collaboratively developed a multiscale approach for assessing the geomorphic sensitivity of streams and ecological resilience of riparian and meadow ecosystems in upland watersheds of the Great Basin to disturbances and management actions. The approach builds on long-term work by the partners on the responses of these systems to disturbances and management actions.

Where’s the biomass? A new approach for quantifying biomass and carbon in the western United States

Events Posted on: October 06, 2020
In this webinar, RMRS research forester Andy Hudak will discuss the Carbon Monitoring System, which draws upon the power of computer modeling, LiDAR, field data, and aerial photography to map forest and woodland biomass.

Monitoring pinyon-juniper cover and aboveground biomass across the Great Basin

Publications Posted on: May 15, 2020
Since the mid-1800s pinyon-juniper (PJ) woodlands have been encroaching into sagebrush-steppe shrublands and grasslands such that they now comprise 40% of the total forest and woodland area of the Intermountain West of the United States. More recently, PJ ecosystems in select areas have experienced dramatic reductions in area and biomass due to extreme drought, wildfire, and management.

Where’s the biomass? A new approach for quantifying biomass and carbon in the Western United States

Science Spotlights Posted on: May 08, 2020
The 2012 Forest Service Planning rule requires that National Forests incorporate into their forest management plans mitigation and adaptation strategies in response to climate change. The Carbon Monitoring System provides annual biomass maps spanning 2000-2016 that will be useful for developing carbon budgets for National Forests and identifying areas needing fuel treatments to reduce wildfire risk. The underlying foundation of this work is forest inventory and LiDAR data contributed by USFS managers and many other public and private stakeholders.

Seed and seedling traits have strong impacts on establishment of a perennial bunchgrass in invaded semi-arid systems

Publications Posted on: October 02, 2019
Many restoration projects use seeds to found new populations, and understanding phenotypic traits associated with seedling establishment in disturbed and invaded communities is important for restoration efforts world-wide. Focusing on the perennial grass Elymus elymoides, a native species common to sagebrush steppe communities in the Western United States, we asked if seed and seedling traits could predict field establishment.

Genecology of Thurber's Needlegrass (Achnatherum thurberianum [Piper] Barkworth) in the Western United States

Publications Posted on: October 02, 2019
Thurber’s needlegrass (Achnatherum thurberianum [Piper] Barkworth) is a key restoration species in the Great Basin and surrounding areas, yet comprehensive studies of how climate relates to genetic variation and seed zones for restoration projects are lacking. Potentially adaptive phenotypic traits of 66 diverse populations of Thurber’s needlegrass were measured in common gardens at Central Ferry, Washington and Reno, Nevada in 2012 and 2013.

Floral guilds of bees in sagebrush steppe: Comparing bee usage of wildflowers available for postfire restoration

Publications Posted on: October 02, 2019
Healthy plant communities of the American sagebrush steppe consist of mostly wind-pollinated shrubs and grasses interspersed with a diverse mix of mostly spring-blooming, herbaceous perennial wildflowers. Native, nonsocial bees are their common floral visitors, but their floral associations and abundances are poorly known. Extrapolating from the few available pollination studies, bees are the primary pollinators needed for seed production.

Notice of release of fanny germplasm, carmel germplasm, and Bonneville germplasm Searls’ prairie clover

Publications Posted on: October 02, 2019
Three natural-track selected germplasms of Searls’ prairie clover (Dalea searlsiae (A. Gray) Barneby [Fabaceae]) have been released by the USDA’s Agricultural Research Service (ARS) for use in revegetation and restoration of semiarid rangelands in the western US. Searls’ prairie clover is a perennial leguminous forb that is native to Utah, Nevada, Arizona, and California.

Seeing species through the forbs by using DNA sequencing

Projects Posted on: August 01, 2019
Forbs are an integral component of terrestrial ecosystems and critical to pollinator health. However, we know very little about the biology of native forbs. Such knowledge is a prerequisite to developing restoration programs that use diverse forb species in restoration seeding.