Index Catalog // ScholarsArchive@OSU

Vegetation Response to Western Juniper Slash Treatments

Creator:: O’Connor, Casey, Miller, Rick, and Bates, Jonathan D.
Abstract:: The expansion of pion-juniper woodlands the past 100 years in the western United States has resulted in large scale efforts to kill trees and recover sagebrush steppe rangelands. It is important to evaluate vegetation recovery following woodland control to develop best management practices. In this study, we compared two fuel...
Resource Type:: Article
Full Text:: . In this study, we compared two fuel reduction treatments and a cut-and-leave (CUT) treatment used to

Vegetation and soil response to tree removal methods in invasive western juniper woodlands

Creator:: O'Connor, Casey A.
Abstract:: On piñon-juniper encroached sites that lack the understory fuels to carry a prescribed fire, treatment options are limited to mechanical methods. Cutting with chainsaws and leaving the trees on site has been the primary treatment method for such sites, however this method creates a potential fire hazard, particularly in the...
Resource Type:: Masters Thesis
Full Text:: with ecological information to assist in developing appropriate fuel reduction measures. This study

Seed bank response to juniper expansion in the semi-arid lands of Oregon, USA

Creator:: Duncan, Corinne M.
Abstract:: Expansion of Juniperus occidentalis into the sagebrush steppe has resulted in significant changes in understory composition. A consequence of increased J. occidentalis dominance may be a depletion of the seed bank. The potential for depletion is problematic because a reduction in the amount of species available from the seed bank...
Resource Type:: Masters Thesis
Full Text:: reduction in the amount of species available from the seed bank may compromise site resiliency. During

Watershed response to western juniper control

Creator:: Deboodt, Timothy L.
Abstract:: Western juniper (Juniperus occidentalis) encroachment has been associated with increased soil loss and reduced infiltration resulting in the loss of native herbaceous plant communities and the bird and animal species that rely on them. Hydrologically, however, change in water yield has been linked with the amount of annual precipitation a...
Resource Type:: Dissertation
Full Text:: (270 acres) each to evaluate changes in a system’s water budget following the reduction of western

An evaluation of understory vegetation dynamics, ecosystem resilience and state and transition ecological theory in an eastern Oregon ponderosa pine forest

Creator:: Carr, Craig A.
Abstract:: Relatively recent increases in ponderosa pine abundance have effected unprecedented changes to ecosystem structure and function. Efforts to restore ponderosa pine systems are often focused on the manipulation of tree structure and the re-introduction of a more natural fire regime. Successful restoration should also incorporate understory components but information addressing...
Resource Type:: Dissertation
Full Text:: alterations in fuel conditions and the reintroduction of herbaceous understory species propagules or other

Prescribed fire effects on resource selection by cattle in mesic sagebrush steppe. Part 2: Mid-summer grazing

Creator:: Clark, Patrick E., Lee, Jaechou, Ko, Kyungduk, Nielson, Ryan M., Johnson, Douglas E., Ganskopp, David C., Pierson, Fredrick B., and Hardegree, Stuart P.
Abstract:: Prescribed fire can release herbaceous forages from woody plant competition thus promoting increased forage plant production, vigor, and accessibility. Prescribe fire also consumes standing litter thereby improving forage quality and palatability. Consequently, prescribed fire is commonly considered an effective tool for manipulating livestock distribution on rangelands. Efficacy of this tool...
Resource Type:: Article
Full Text:: fire, fuels have accu- mulated to excessive and hazardous levels. Stands of shrubs and trees have

Quantification of state-and-transition model components utilizing long-term ecological response data following one-seed juniper treatment on a deep sand savannah ecological site

Creator:: Shaver, Patrick L.
Abstract:: A proposed state-and-transition model (STM) for the Deep Sand Savannah ecological site in central New Mexico was developed using historical data and expert knowledge. This STM was tested utilizing data from short and long term one-seed juniper (Juniperus monosperma (Engelm.) Sarg.) control experiments initiated in 1981 and 1985. Utilizing data...
Resource Type:: Dissertation
Full Text:: VEGETATION TO THE REDUCTION OF ONE-SEED JUNIPER CANOPY COVER…………………………………………... 43 ABSTRACT

Mowing Wyoming Big Sagebrush Communities With Degraded Herbaceous Understories: Has a Threshold Been Crossed?

Creator:: Davies, Kirk W., Bates, Jonathan D., and Nafus, Aleta M.
Abstract:: Wyoming big sagebrush (Artemisia tridentata ssp. wyomingensis [Beetle & A. Young] S.L. Welsh) plant communities with degraded native herbaceous understories occupy vast expanses of the western United States. Restoring the native herbaceous understory in these communities is needed to provide higher-quality wildlife habitat, decrease the risk of exotic plant invasion,...
Resource Type:: Article
Full Text:: mowing. We expected that sage- brush dominance limits the herbaceous understory and reduction via mowing

Prescribed fire effects on vegetation and arthropod dynamics, and sampling techniques in a Wyoming big sagebrush community

Creator:: Rhodes, Edward C.
Abstract:: In the western United States, sagebrush (Artemisia spp L.) dominated rangelands are extensive, accounting for approximately 63 million ha. The Wyoming big sagebrush (Artemisia tridentata Nutt. ssp. wyomingensis Beetle & Young) alliance is found in more xeric environments, occupying the largest area of the big sagebrush complex in areas within...
Resource Type:: Masters Thesis
Full Text:: alterations) have caused a reduction in sage grouse populations and distributions (Braun et al. 1977

Prescribed fire effects on resource selection by cattle in mesic sagebrush steppe. Part 1: Spring grazing

Creator:: Clark, Patrick E., Lee, Jaechoul, Ko, Kyungduk, Nielson, Ryan M., Johnson, Douglas E., Ganskopp, David C., Chigbrow, Joe, Pierson, Fredrick B., and Hardegree, Stuart P.
Abstract:: Prescribed fire is commonly applied world-wide as a tool for enhancing habitats and altering resource-selection patterns of grazing animals. A scientific basis for this practice has been established in some ecosystems but its efficacy has not been rigorously evaluated on mesic sagebrush steppe. Beginning in 2003, resource-selection patterns of beef...
Resource Type:: Article
Full Text:: either prefire year (Table 2). In other words, prefire conditions (e.g., fuel load, type, continuity, or

ScholarsArchive@OSU

Vegetation Response to Western Juniper Slash Treatments

Vegetation and soil response to tree removal methods in invasive western juniper woodlands

Seed bank response to juniper expansion in the semi-arid lands of Oregon, USA

Watershed response to western juniper control

An evaluation of understory vegetation dynamics, ecosystem resilience and state and transition ecological theory in an eastern Oregon ponderosa pine forest

Prescribed fire effects on resource selection by cattle in mesic sagebrush steppe. Part 2: Mid-summer grazing

Quantification of state-and-transition model components utilizing long-term ecological response data following one-seed juniper treatment on a deep sand savannah ecological site

Mowing Wyoming Big Sagebrush Communities With Degraded Herbaceous Understories: Has a Threshold Been Crossed?

Prescribed fire effects on vegetation and arthropod dynamics, and sampling techniques in a Wyoming big sagebrush community

Prescribed fire effects on resource selection by cattle in mesic sagebrush steppe. Part 1: Spring grazing

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