Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"Bromus Tectorum L."”.
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Epidemiology of Ustilago bullata Berk. on Bromus tectorum L. and Implication for Biological Control
… biological control agent for cheatgrass (Bromus tectorum L.). The effects of temperature and nutrients on pathogen teliospore germination behavior and the effects of temperature on host seed germination were examined. The effects of temperature on sporidial proliferation, host infection in …
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Cheatgrass (Bromus tectorum L.) management and native plant community recovery on sites selectively treated with Imazapic in Rocky Mountain National Park
Cheatgrass, a winter annual grass introduced to North America from Eurasia, has invaded much of the Western United States over the last century. Recently, cheatgrass has become a threat to the montane and subalpine plant communities and ecosystems of Rocky Mountain National Park (RMNP). Cheatgrass …
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Cheatgrass (Bromus tectorum L.) interactions with arbuscular mycorrhizal fungi in the North American steppe: prevalence and diversity of associations, and divergence from native vegetation
To view the abstract, please see the full text of the document.
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Interactions between Bromus tectorum, grasshoppers, and native plants in sagebrush steppe communities
Invasion by the exotic grass Bromus tectorum L. (cheatgrass) has produced widespread, persistent changes in the Intermountain West. As a result of this and other disturbances, sagebrush shrubland is among North America's most imperiled ecosystems. Restoration of B. tectorum-infested areas has often …
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Investigations of Bromus tectorum: restoration strategies and interactions with arbuscular mycorrhizal fungi
Bromus tectorum (L) (cheatgrass, downy brome), one of the most pervasive weeds in the United States, reduces native species diversity and transforms habitats. I conducted four experiments designed to better understand B. tectorum ecology and evaluate control and restoration strategies. I measured …
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Effects of Cheatgrass Control on Wyoming Big Sagebrush in Southeastern Utah
… Young] Welsh) have developed dense cheatgrass (Bromus tectorum L.) understories. These communities are currently characterized by predominately mature to decadent stands of sagebrush with few perennial grasses and forbs. Sagebrush seedlings and perennial grasses compete for limited resources …
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Effects of pretreatment tree dominance and conifer removal treatments on plant succession in sagebrush communities
… by invasive species such as cheatgrass (Bromus tectorum L). By 6 years after treatment, tall grass and cheatgrass cover both increased on prescribed fire and cut treatments, especially at higher pretreatment TDI. However, ratios of cheatgrass to tall grass cover were much lower on cut …
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Ecosystem Consequences of Post-Fire Invasive Species in the Great Basin Desert
… function. Non-native plants, such as cheatgrass (Bromus tectorum L.), have aggressively invaded the Western United States. Promoted by overgrazing and fire, this invasion is rapidly converting large expanses of native sagebrush to post-fire invasive communities. The objective of this research was …
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Cheatgrass die-off in the Great Basin: A comparison of remote sensing detection methods and identification of environments favorable to die-off
Invasion by cheatgrass (Bromus tectorum L.) has greatly damaged the rangeland ecosystems of the Western United States. While mechanical and chemical control of cheatgrass is possible, control is costly and often ineffective in the long-term. An improved understanding of cheatgrass die-off, or stand …
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The Effect of Prescribed Burning on Soil Microbial Communities, Nutrients, and Carbon Dioxide Fluxes Under and Between Sagebrush Canopies in the Semi-Arid Rangelands of Northern Nevada
Wildfire and the invasion of cheatgrass (Bromus tectorum L.) are some of the greatest challenges in western U.S. rangelands. The spread of wildfire has been shown to cause immediate and long-term changes to soil microbial communities, nutrient dynamics, and carbon dioxide (CO2) fluxes. These …