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Filtering by: Creator United States. Forest Service. Intermountain Region Remove constraint Creator: United States. Forest Service. Intermountain Region Committee Member Doescher, Paul Remove constraint Committee Member: Doescher, Paul Rights Statement In Copyright Remove constraint Rights Statement: In Copyright

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  • Plant community recovery after high severity wildfire and post-fire management in the Klamath Region

    Creator:
    Lopez Ortiz, Maria Jose
    Abstract:
    Disturbance and microclimate interact to play a central role influencing the composition and structure of plant communities. In this thesis, I examined plant community composition and structure twenty years after high severity wildfires with and without post-fire management (salvage logging, fuel treatment, tree planting, and shrub release) under contrasting microclimatic...
    Resource Type:
    Masters Thesis
    Full Text:
    force in the western United States (Taylor and Skinner 1998), influencing forest structure and species

  • Economic and social impacts of restoration : a case study of the Great Basin Region

    Creator:
    Satyal, Vijayanand H.
    Abstract:
    The last five decades of research in arid land ecology cites Invasive species as a source of imbalances in biodiversity through habitat destruction and reductions of native species through ecosystem alterations in favor of non-native species. Invasive species are known to damage not only the surrounding ecosystem but also cause...
    Resource Type:
    Dissertation
    Full Text:
    non-native species. Invasive species in the United States are ranked second only to habitat

  • Persistence of western juniper resource islands following canopy removal

    Creator:
    Miwa, Christopher
    Abstract:
    Western juniper (Juniperus occidentalis) cover has more than doubled within the last century and currently occupies over 9 million acres in the Intermountain West. Encroachment has altered the spatial distribution of soil nutrients and plants in these systems, forming nutrient enriched 'resource islands,' under tree canopies. The purpose of this...
    Resource Type:
    Masters Thesis
    Full Text:
    degraded (20% of the world’s pastures and rangeland) (FAO, 1996; UNEP, 2002). In the United States

  • Influence of silvicultural treatments, overstory, and understory vegetation on quaking aspen (Populus tremuloides) regeneration in southeastern Idaho

    Creator:
    Muñoz, Bethany L.
    Abstract:
    Quaking aspen (Populus tremuloides Michx.) is known to be a widely distributed, shade-intolerant and short-lived hardwood found in both seral, even-aged and stable, uneven aged stands. There have been reports of extensive aspen mortality, crown thinning, and branch dieback across North America that have been linked to the occurrence of...
    Resource Type:
    Masters Thesis
    Full Text:
    climate change (Rehfeldt et al., 2009). Within the US Forest Service’s Rocky Mountain Region, it was

  • Quaking aspen persistence in three Oregon landscapes

    Creator:
    Seager, S. Trent
    Abstract:
    Quaking aspen (Populus tremuloides) is an important tree species in the western United States and there has been much concern about its persistence. In this thesis, I report on aspen in a portion of its range that has not been previously evaluated: the eastern and western slopes of the Central...
    Resource Type:
    Masters Thesis
    Full Text:
    . General Technical Report RM-119. United States Department of Agriculture Forest Service, Fort Collins

  • Restructuring of land and community in the remote rural west : the case of Wallowa County, Oregon

    Creator:
    Abrams, Jesse
    Abstract:
    Since at least the 1970s, rural areas in the western United States, as elsewhere across the country and world, have been subject to social, economic, and political forces that have resulted in novel demographic and land tenure trends when compared to previous decades. Collectively, these processes of restructuring have created...
    Resource Type:
    Dissertation
    Full Text:
    : ___________________________________________________________________ John C. Bliss Since at least the 1970s, rural areas in the western United States, as

  • Spatial and age class analysis of managed western juniper (Juniperus occidentalis) woodlands in central Oregon

    Creator:
    Zophy, Kelley T.
    Abstract:
    Juniper is a native species to Oregon and confers ecological benefits to wildlife when it is at savannah and transitional densities. Its range and extent have fluctuated with climatic change, but the current range expansion is unprecedented in its extent. The range expansion has been associated with the degradation of...
    Resource Type:
    Masters Thesis
    Full Text:
    western United States (Pierson et al. 2002). Shrublands provide habitat to 70 species of mammals and

  • Competition release and climate change effects on a moisture-demanding tree species in a dry system

    Creator:
    Seager, S. Trent
    Abstract:
    Climate change and the increase in meteorological drought have generated global concern over the persistence of ecosystems already in decline from decreased moisture. Evidence suggests dryland ecosystems have been more impacted by drought because of their tightly coupled growth-water relationships and high sensitivity to environmental shift. Removal of competing vegetation...
    Resource Type:
    Dissertation
    Full Text:
    cm falling in July and August (NRCS, 2014). The dry forest ecosystems of the region developed with

  • Disturbance and dynamics of riparian forests in southwestern Oregon

    Creator:
    Messier, Michael S.
    Abstract:
    Fire exclusion has been associated with structural and compositional changes in many upland forests of the western United States, but little is known about the impacts on riparian forests, portions of the landscape protected for habitat and water quality. For this study, I characterized the historic disturbance and tree recruitment...
    Resource Type:
    Masters Thesis
    Full Text:
    with structural and compositional changes in many upland forests of the western United States, but

  • Spatial patterns of fuel management activities and their effects on wildfire behavior

    Creator:
    Kim, Young-Hwan
    Abstract:
    Fuel management has been used as an effective local strategy to reduce the undesirable consequences of wildfires. Many efforts toward scheduling of fuel management activities across a broader landscape have been proposed, with the hope of achieving larger landscape-scale management effects. However, scheduling of fuel management treatments across the broader...
    Resource Type:
    Dissertation
    Full Text:
    . USDA Forest Service, Intermountain Research Station, Ogden, UT, General Technical Report INT- 484