Index Catalog // ScholarsArchive@OSU

The historic and contemporary ecology of western Cascade meadows : archeology, vegetation, and macromoth ecology

Creator:: Highland, Steven A.
Abstract:: Montane meadows in the western Cascades of Oregon occupy approximately 5% of the landscape, but contribute greatly to the region's biodiversity. Western Cascades meadows are dynamic parts of the landscape and have contracted by over 50% in the past two hundred years in the HJ Andrews Experimental Forest (hereafter Andrews...
Resource Type:: Dissertation
Full Text:: well as lowland coniferous forests. Montane meadows in the Andrews Forest are contracting in size

Precipitation-snowmelt timing and snowmelt augmentation of large peak flow events, western Cascades, Oregon

Creator:: Jennings, Keith S.
Abstract:: Despite advances in the understanding of rain-on-snow storms and their resulting peak flows, little is understood about the response of snowmelt to precipitation and the relative timing of the two at multiple temporal scales within such events. To address this issue, climate, snowmelt, and streamflow data were analyzed for 26...
Resource Type:: Masters Thesis
Full Text:: storms in the H.J. Andrews Experimental Forest in the western Cascades of Oregon. Cumulative net

Forest-meadow dynamics in the central western Oregon Cascades : topographic, biotic,and environmental change effects

Creator:: Rice, Janine M.
Abstract:: Montane meadows comprise a small area of the predominantly forested landscape of the Oregon Cascade Range. Tree encroachment in the last century in these areas has threatened a loss of biodiversity and habitat. Climate change in the coming century may accelerate tree encroachment into meadows, and exacerbate biodiversity loss. Multiple...
Resource Type:: Dissertation
Full Text:: concentrations, and fire regime on forest and non- forest areas are disentangled with a vegetation modeling

Effects of harvest and roads on in-stream wood abundance in the Blue River Basin, western Cascades, Oregon

Creator:: Czarnomski, Nicole M.
Abstract:: Despite many studies of large wood in streams, few landscape scale studies have been conducted. Large-scale studies can reveal how the history of forest harvest and road building has influenced wood patterns in streams of the Pacific Northwest. This study examined the relationships between wood in streams, timber harvest, and...
Resource Type:: Masters Thesis
Full Text:: the degree of Master of Science in Forest Science presented on October 22, 2003. Title: Effects of

Age structure, developmental pathways, and fire regime characterization of Douglas-fir/western hemlock forests in the central western Cascades of Oregon

Creator:: Tepley, Alan J.
Abstract:: Descriptions of the fire regime in the Douglas-fir/western hemlock region of the Pacific Northwest traditionally have emphasized infrequent, predominantly stand-replacement fires and an associated linear pathway of stand development, where all stands proceed along a common pathway until reset by the next fire. Although such a description may apply in...
Resource Type:: Dissertation
Full Text:: forest managers. Analytical modeling approaches were expanded to characterize trajectories of change

The effects of stand thinning on soil erosion rates at Jim's Creek in the Willamette National Forest, Oregon

Creator:: McFadden, Andrew K.
Abstract:: Surface sediment transport is an important geomorphic process which can be significantly altered by management activities in forested ecosystems. Disturbance of the soil surface may result in increased sediment delivery to fish bearing streams and degradation of soil structure. Selective thinning and low impact yarding techniques were utilized in an...
Resource Type:: Capstone Project
Full Text:: watersheds in the Pacific Northwest lead to difficulty in detecting and modeling responses to forest

Diversity, Generalization, and Specialization in Plant-Pollinator Networks of Montane Meadows, Western Cascades, Oregon

Creator:: Helderop, Edward
Abstract:: Despite the importance of plant-pollinator interactions for ecological communities, few long-term observational studies have been conducted of plant-pollinator networks. Using four years of plant-pollinator interaction data from 18 meadows in the Willamette National Forest, Oregon, this thesis examined how meadow size, the amount of nearby meadow habitat, weather, degree days,...
Resource Type:: Masters Thesis
Full Text:: data from 18 meadows in the Willamette National Forest, Oregon, this thesis examined how meadow size

Trends in streamflow from old growth forested watersheds in the western Cascades

Creator:: Moore, Kathleen M.
Abstract:: Increasing temperatures in western North America are expected to result in a decline in winter snowpacks, earlier snowmelt, and a shift in the timing of streamflows, with an increasing fraction of streamflows occurring earlier in the water year and drier conditions during the summer. However, few streamflow datasets have associated...
Resource Type:: Capstone Project
Full Text:: Data were obtained from three sources: the Forest Science Data Bank, the PRISM Climate Group, and

Mapping vegetation using landsat TM and ETM+ in Eritrea

Creator:: Iyob, Biniam
Abstract:: The objective of this study was to examine vegetation and vegetation change in Eritrea over a period from the mid 1980s to 2002 using satellite remote sensing, and relate observed changes to the recent history of drought and war in the region. Specific objectives were (1) to examine vegetation change...
Resource Type:: Masters Thesis
Full Text:: forest and (3) to analyze whether vegetation classes and/or changes differed among three vegetation

ScholarsArchive@OSU

The historic and contemporary ecology of western Cascade meadows : archeology, vegetation, and macromoth ecology

Precipitation-snowmelt timing and snowmelt augmentation of large peak flow events, western Cascades, Oregon

Forest-meadow dynamics in the central western Oregon Cascades : topographic, biotic,and environmental change effects

Effects of harvest and roads on in-stream wood abundance in the Blue River Basin, western Cascades, Oregon

Age structure, developmental pathways, and fire regime characterization of Douglas-fir/western hemlock forests in the central western Cascades of Oregon

The effects of stand thinning on soil erosion rates at Jim's Creek in the Willamette National Forest, Oregon

Diversity, Generalization, and Specialization in Plant-Pollinator Networks of Montane Meadows, Western Cascades, Oregon

Trends in streamflow from old growth forested watersheds in the western Cascades

Mapping vegetation using landsat TM and ETM+ in Eritrea

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