Index Catalog // ScholarsArchive@OSU

Hydrologic and vegetation responses associated with restoration of wetlands in the Willamette Valley, Oregon

Creator:: Coleman, Gregory A.
Abstract:: I examined hydrological and plant community changes associated with the implementation of a restoration management plan in two riparian meadows located within an agricultural landscape of the central Willamette Valley, Oregon. I established exclosure fencing (a form of passive restoration) in one agricultural field and established fencing and plugged a...
Resource Type:: Masters Thesis
Full Text:: WETLANDS [N THE WILLAMETTE VALLEY, OREGON. 7 PLANT SPECIES SUCCESSION [N TWO RESTORED RIPARIAN WETLAND

Plant community dynamics in remnant and restored Willamette Valley wetland prairies

Creator:: Schwindt, Rachel A.
Abstract:: Invasion by exotic species can pose a major challenge for developing native plant communities in wetland restoration projects. Often native plant communities do not develop as anticipated in restored wetlands due to colonization by exotic species that dominate the native plant community. Despite the time and expense to restore wetlands,...
Resource Type:: Masters Thesis
Full Text:: Willamette Valley in Oregon to increase populations of threatened species and mitigate for wetland losses

The effects of site preparation on native forb establishment in a wet prairie, Willamette Valley, Oregon

Creator:: Norman, Katherine N.
Abstract:: Wetlands and wet prairies are economically and environmentally valuable ecosystems, but many have been degraded or converted to other uses. As human understanding of wetlands' value has increased, restoration efforts have grown correspondingly. Restoration attempts use a diversity of methods, which often include seeding with native plant species. This thesis...
Resource Type:: Masters Thesis
Full Text:: Establishment in a Wet Prairie, Willamette Valley, Oregon Abstract approved: Patricia S. Muir

Landsat-based monitoring of annual wetland change in the main-stem Willamette River floodplain of Oregon, USA from 1972 to 2012

Creator:: Fickas, Kate C.
Abstract:: Despite holding substantial ecological value, wetlands in the United States have experienced a significant decline in both area and function over the past century with the majority of freshwater wetland loss attributed to agricultural conversion. Agriculture is the second largest industry in the State of Oregon and the State places...
Resource Type:: Masters Thesis
Full Text:: Willamette River Floodplain of Oregon, USA from 1972 to 2012. Abstract approved

Patterns in responses of an amphibian assemblage to wetland restoration

Creator:: Rowe, Jennifer C.
Abstract:: Wetland restoration success in attaining wildlife conservation goals can be confounded by the presence of multiple biological invaders. Wetland management activities typically target invasive plants, but bottom-up responses of higher trophic levels in novel communities are difficult to predict. We surveyed plant and amphibian assemblages at 26 sites enrolled in...
Resource Type:: Masters Thesis
Full Text:: assemblages at 26 sites enrolled in the Wetlands Reserve Program (WRP) in the Willamette Valley, Oregon to

Comparing vegetation and soils of remnant and restored prairie wetlands in the northern Willamette Valley

Creator:: Taylor, Sara M.
Abstract:: Native prairies of the Willamette Valley are considered among the rarest of Oregon's ecosystems (Clark and Wilson, 2001). As a result of agriculture conversion, urban development and cessation of native burning, Willamette Valley prairies have become highly fragmented and invaded by non-native species, leaving little room for native plant diversity....
Resource Type:: Masters Thesis
Full Text:: wetland prairies in the Willamette Valley are being threatened by development, changes in hydrology

Vegetation composition and response to fire of native Willamette Valley wetland prairies

Creator:: Pendergrass, Kathy L. (Connelly)
Abstract:: Fires set by Native Americans were important in shaping and maintaining Willamette Valley prairie plant communities. With fire exclusion after Euro-American settlement in the 1840's, composition of the remaining prairies shifted toward shrub and tree dominance with a concomitant decline in endemic prairie plant populations. I hypothesize that by restoring...
Resource Type:: Masters Thesis
Full Text:: : Vegetation Composition and Response to Fire of Native Willamette Valley Wetland Prairies. Abstract approved

Overstory Structure and Community Characteristics of Oregon Ash (Fraxinus latifolia) Forests of the Willamette Valley, Oregon

Creator:: Prive, Sean
Abstract:: As species of ash trees become increasingly threatened worldwide by exotic pests and pathogens, it is important to develop descriptions of their ecologies that help guide the conservation and restoration of forests in which they are a major component. Oregon ash (Fraxinus latifolia) is a dominant tree species in wetland...
Resource Type:: Masters Thesis
Full Text:: (Fraxinus latifolia) is a dominant tree species in wetland forests of the Willamette Valley, Oregon. It is

Ecological and mortality factors affecting the nesting stage of the Chinese pheasant, Phasianus torquatus Gmelin, in the Willamette Valley, Oregon

Creator:: Eklund, Carl Robert
Resource Type:: Masters Thesis
Full Text:: Stage of the Chinese Pheasant, Phasianus torquatus, Gmelin in the Willamette Valley, Oregon AN

Quilts and quilt-making in the Willamette Valley of Oregon

Creator:: Meloy, Betty Thiessen
Abstract:: This thesis is a documentation of a selected number of nineteenth century quilts studied by the investigator in the Willamette Valley. The quilts were located in museums and in individual's homes. A questionnaire, that was developed for this study of quilts, was filled out as each quilt was examined. Slides...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Hydrologic and vegetation responses associated with restoration of wetlands in the Willamette Valley, Oregon

Plant community dynamics in remnant and restored Willamette Valley wetland prairies

The effects of site preparation on native forb establishment in a wet prairie, Willamette Valley, Oregon

Landsat-based monitoring of annual wetland change in the main-stem Willamette River floodplain of Oregon, USA from 1972 to 2012

Patterns in responses of an amphibian assemblage to wetland restoration

Comparing vegetation and soils of remnant and restored prairie wetlands in the northern Willamette Valley

Vegetation composition and response to fire of native Willamette Valley wetland prairies

Overstory Structure and Community Characteristics of Oregon Ash (Fraxinus latifolia) Forests of the Willamette Valley, Oregon

Ecological and mortality factors affecting the nesting stage of the Chinese pheasant, Phasianus torquatus Gmelin, in the Willamette Valley, Oregon

Quilts and quilt-making in the Willamette Valley of Oregon

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