Results 21 to 30 of about 5,130 (197)
Cheatgrass competition and establishment of desert needlegrass seedlings [PDF]
Desert needlegrass (Achnatherum speciosum [Trin. Rupr.] Barkworth) is potentially a valuable native species for use in restoration seedings in the more arid portions of the Great Basin. Seedlings of desert needlegrass were grown in a greenhouse with 5 different densities of cheatgrass (Bromus tectorum L.).
Dawn L. Rafferty, James A. Young
openaire +2 more sources
Re-Establishing Perennial Vegetation in Cheatgrass Monocultures [PDF]
Humans have had a significant impact on shrublands of the western United States. The introduction of large numbers of livestock into native plant communities that had evolved without grazing pressure has greatly altered vegetation composition. Overgrazing resulted in the loss of perennial grasses and facilitated the widespread invasion by annual ...
Thomas A. Monaco +2 more
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Soil Heating, Nitrogen, Cheatgrass, and Seedbed Microsites [PDF]
Heat-induced changes in the soil-solution and post-wildfire erosion can create chemically and texturally diverse seedbed microsites. We quantified organic carbon, extractable NH4+ after incubation (aerobic and anaerobic), and emergence of cheatgrass (Bromus tectorum L.), by particle size fractions, in unburned and simulated burned sagebrush ...
Robert R. Blank +2 more
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Over the past century, piñon and juniper trees have encroached into sagebrush steppe lands of the interior United States, and managers have for many years removed trees to stimulate the favored understory.
James McIver +2 more
doaj +1 more source
Earlier fall precipitation and low severity fire impacts on cheatgrass and sagebrush establishment
In arid and semiarid ecosystems, invasion by exotic grasses may be driving state changes in vegetation defined by losses of native shrub communities.
Tara B. B. Bishop +4 more
doaj +1 more source
Bromus tectorum L., known as cheatgrass or downy brome, is arguably the most damaging invasive species in North America. Bromus tectorum reduces crop yields, increases the frequency of wildfires, and displaces indigenous species in North America, especially the intermountain west.
openaire +2 more sources
Cheatgrass (Bromus tectorum) invasion is driving an emerging cycle of increased fire frequency and irreversible loss of wildlife habitat in the western US. Yet, detailed spatial information about its occurrence is still lacking for much of its presumably
Kyle B. Larson, Aaron R. Tuor
doaj +1 more source
Nonnative Bromus tectorum (cheatgrass) is decimating sagebrush steppe, one of the largest ecosystems in the Western United States, and is causing regional-scale shifts in the predominant plant-fungal interactions.
Carolyn F Weber, Gary M King, Ken Aho
doaj +1 more source
Evaluation of the Complementary Relationship Using Noah Land Surface Model and North American Regional Reanalysis (NARR) Data to Estimate Evapotranspiration in Semiarid Ecosystems [PDF]
Estimating evapotranspiration using the complementary relationship can serve as a proxy to more sophisticated physically based approaches and can be used to better understand water and energy budget feedbacks.
Huntington, Justin L. +3 more
core +2 more sources
Two species of Psilochalcis (Hymenoptera: Chalcididae) wasps occurring in the Great Basin region of the western United States were sampled from three locations in central Utah (USA) over a two-year period using Malaise traps. Each location is composed of
Mark J. Petersen +3 more
doaj +1 more source

