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Hydric Soils in Eastern Oregon Temporary Pools

Creator:: Clausnitzer, David
Abstract:: Two types of temporary poois, known as playas, occur in semiarid southeast Oregon. Vegetated upland playas are found in the High Lava Plain province; barren alkaline-saline playas are found in the Basin and Range province. Both types become ponded in most years, but they often lack redoximorphic features indicative of...
Resource Type:: Dissertation
Full Text:: OF THE THESIS OF David Clausnitzer for the degree of Doctor of Philosophy in Soil Science presented

The thermal characteristics of hydrologically intact Type C and E streams in eastern Oregon

Creator:: Hopkins, Karl T.
Abstract:: Many streams in eastern Oregon are listed as water quality impaired on the basis of water temperature. However, it is often difficult to predict water temperature for these streams even if there are no anthropogenic impacts. We measured air and water temperature and stream characteristics on three Type C and...
Resource Type:: Masters Thesis
Full Text:: . Svej car (USDA Agricultural Research Service Eastern Oregon Agricultural Research Center), Dr. David R

Characterization of Vibrio parahaemolyticus isolated from Oregon and Washington coastal water and development of improved methods for Vibrio parahaemolyticus detection

Creator:: Duan, Jingyun
Abstract:: Distribution of Vibrio parahaemolyticus in Oregon and Washington oystergrowing areas was studied between November 2002 and October 2003. V. parahaemolyticus was detected in 14.3% of oyster, 23.0% of seawater, and 44.4% of sediment samples with very low levels (≤7.4 MPN/g) of pathogenic strains being detected in oysters. Occurrence of V....
Resource Type:: Dissertation
Full Text:: efficiently. I would also thank my minor professor, Dr. Mahfuz R. Sarker, and my committee members, Dr

Classification of native vegetation of Oregon

Creator:: Kagan, James S., Christy, John A., Murray, Michael P., Titus, Jonathan A., Oregon Natural Heritage Information Center, and Institute for Natural Resources
Abstract:: This classification lists the native plant associations known to occur in Oregon, and includes both successional and climax vegetation types that were an important part of the presettlement landscape of Oregon. It serves as an index to the diversity, distribution and relative rarity of the state's native plant associations, and...
Resource Type:: Technical Report
Full Text:: & Clausnitzer 1992: 51, 53; Clausnitzer 1993: 8; Titus et al. 1998. Abies grandis - Thuja plicata / Achyls

Woody riparian species patterns along northeast Oregon mountainous streams and the relationship to riparian capability

Creator:: Yancey, Jennifer M.
Abstract:: Woody riparian vegetation is an essential component of riparian ecosystems, responsible in part for the maintenance of functional ecological processes. The plant community composition and distribution provide an indication of the underlying mosaic of environmental attributes and processes. Restoration and management of riparian communities have been hindered by the lack...
Resource Type:: Masters Thesis
Full Text:: temperature extremes (Patten 1998, Kovalchik and Clausnitzer 2004, Brunsfeld and Johnson 1985). In east

The ecology of Mountain Quail in Oregon

Creator:: Pope, Michael D. (Michael Dickens)
Abstract:: Mountain Quail (Oreortyx pictus) populations have declined in many areas of the western Great Basin during the past century. Yet the life history of this species is little known. From 1997 to 2000, I studied radio-marked Mountain Quail in Hell's Canyon in northeastern Oregon, in the Cascade Mountains of southwestern...
Resource Type:: Dissertation
Full Text:: , M. R. 1979. Type specimens of birds collected in Oregon. Northwest Science 53:132-140. Burger, L. W

Riparian and wetland vegetation of central and eastern Oregon

Creator:: Crowe, Elizabeth A. (Elizabeth Ann), 1963-, Kovalchik, Bernard L., Kerr, Marie Jeannette James, 1968-, Oregon Natural Heritage Information Center, and Institute for Natural Resources
Abstract:: The structure and components of riparian areas influence the rate, amount, and timing of water, nutrients, organic debris, and inorganic materials that enter streams and rivers. The energy of floodwaters and their ultimate volume, timing and erosive power is influenced by the soils, vegetation and geomorphology of fluvial surfaces within...
Resource Type:: Technical Report
Full Text:: guides, as well as additional data collected in central Oregon. Rod Clausnitzer was the co-lead with

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

Native freshwater wetland plant associations of northwestern Oregon

Creator:: Christy, John A., Oregon Natural Heritage Information Center, and Institute for Natural Resources
Abstract:: This guide provides keys, descriptions, and stand tables for 122 native freshwater plant associations (14 forest and woodland, 28 shrub, 78 herbaceous, 2 nonvascular) in northwestern Oregon, based on analysis of data from 1,992 plots distributed throughout the study area. Descriptions are provided for eight other plant associations for which...
Resource Type:: Technical Report

Seedling response to vegetation management in northeastern Oregon

Creator:: Lindsay, Amanda A.
Abstract:: Northeastern Oregon geology and climate provides moderately productive conditions for forest management and timber production. Although site preparation and planting are commonly used silvicultural practices, little research exists on the efficacy of specific forest herbicides and responses of seedling survival and growth in this region. This research seeks to improve...
Resource Type:: Masters Thesis
Full Text:: of the Blue Mountains physiographic province (Johnson and Clausnitzer 1991). Approximately 65

ScholarsArchive@OSU

Hydric Soils in Eastern Oregon Temporary Pools

The thermal characteristics of hydrologically intact Type C and E streams in eastern Oregon

Characterization of Vibrio parahaemolyticus isolated from Oregon and Washington coastal water and development of improved methods for Vibrio parahaemolyticus detection

Classification of native vegetation of Oregon

Woody riparian species patterns along northeast Oregon mountainous streams and the relationship to riparian capability

The ecology of Mountain Quail in Oregon

Riparian and wetland vegetation of central and eastern Oregon

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

Native freshwater wetland plant associations of northwestern Oregon

Seedling response to vegetation management in northeastern Oregon

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