Index Catalog // ScholarsArchive@OSU

Oregon's Mid-Willamette Valley wetlands : agricultural uses, alternative uses, problems and trends

Creator:: Tsutsui, Setsuo Harry
Abstract:: The wetlands are distinguished from other lands of the Mid-Willamette Valley by excessive soil moisture. The wetlands, as defined for this study, consist of 20 soil series (in 22 soil mapping units) which are classified by the Soil Conservation Service as having excessive wetness as the major factor limiting their...
Resource Type:: Dissertation
Full Text:: Basin Wetlands of the Five-County Area, Mid- Willamette Valley, Oregon Page 6 7 3 Climograph of

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

Multiscale relationships of wintering birds with riparian and wetland habitat in the Willamette Valley, Oregon

Creator:: Adamus, Paul R.
Abstract:: Relatively little is known about wintering bird communities in lowlands of the Pacific Northwest, yet, the condition of winter habitats potentially can pose a major constraint on bird populations. I initiated a study to determine: (1) Which avian species use lowland riparian and wetland habitats in the Willamette Valley during...
Resource Type:: Dissertation
Full Text:: Relationships of Wintering Birds with Riparian and Wetland Habitat in the Willamette Valley, Oregon Abstract

The Willamette Valley (Oregon) Prairie Plant Trait Dataset

Creator:: Clark, Deborah and Wilson, Mark V.
Abstract:: The Willamette Valley (Oregon) Prairie Plant Trait Dataset is a compilation of plant traits of species important in upland prairies, wetland prairies, vernal pools, and emergent wetlands, and in the restoration of prairies and wetlands of the Willamette Valley of Oregon. These species are also found widely throughout the Pacific...
Resource Type:: Dataset
Full Text:: Descriptions 1-4-2018.docx 1 Willamette Valley (Oregon) Prairie Plant Trait Descriptions For The

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

The effects of land use on mineral flat wetland hydrologic processes in lowland agricultural catchments

Creator:: Marshall, Sarah M.
Abstract:: Hydrologic processes within mineral flat wetlands, along with their connections to groundwater and downstream surface water in lowland agricultural catchments are poorly understood, particularly under different land uses. In the three field studies included in this thesis, we examined infiltration, wetland hydroperiod, groundwater recharge dynamics, surface runoff generation, and water...
Resource Type:: Dissertation
Full Text:: Atlantic Coastal Plain and wetland prairie in the Willamette Valley, Oregon, are now some of the rarest

Influence of wetland landscape structure of shorebirds wintering in an agricultural valley

Creator:: Taft, Oriane Williams
Abstract:: Understanding how wetland birds use habitat is pivotal to developing successful and beneficial conservation strategies. Although it has been an ardent topic in forest research for some time, how species interact with the spatial patterning of habitat across a landscape (i.e., landscape structure) has been more or less neglected in...
Resource Type:: Dissertation
Full Text:: of the Willamette Valley, Oregon, with wetland prairie shown in gray and riparian/wetland forest

ScholarsArchive@OSU

Oregon's Mid-Willamette Valley wetlands : agricultural uses, alternative uses, problems and trends

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

Multiscale relationships of wintering birds with riparian and wetland habitat in the Willamette Valley, Oregon

The Willamette Valley (Oregon) Prairie Plant Trait Dataset

Patterns in responses of an amphibian assemblage to wetland restoration

The effects of land use on mineral flat wetland hydrologic processes in lowland agricultural catchments

Influence of wetland landscape structure of shorebirds wintering in an agricultural valley

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