Index Catalog // ScholarsArchive@OSU

Influence of habitat characteristics on Greater sage-grouse reproductive success in the Montana Mountains, Nevada

Creator:: Rebholz, James L.
Abstract:: Greater sage-grouse (Centrocercus urophasianus) populations have declined across their geographic range during the last century. They were once widespread throughout the Intermountain West, but lower annual productivity, likely caused by degradation and loss of suitable habitat, has greatly reduced their distribution and population densities. Habitat used for reproduction has been...
Resource Type:: Masters Thesis
Full Text:: Model AN ABSTRACT OF THE THESIS OF James L. Rebholz

The effects of mechanical damage on residual coastal Douglas-fir (Pseudotsuga menziesii [Mirbel] Franco) following commercial thinning

Creator:: Kiser, James D.
Abstract:: Commercial thinning operations can result in damage to residual stems. A literature review revealed that little was known about the effects of residual logging wounds with regard to rotation-age commercial conifers, particularly Douglas-fir. An experiment to examine fungal colonization of Douglas-fir following logging damage showed that while damage was significant...
Resource Type:: Dissertation
Full Text:: and Kellogg, 1993). Studies of Douglas-fir (Hunt and Krueger, 1962), western hemlock and Sitka

The Oregon Coastal Subprovince, a new biogeographic subprovince for primary freshwater fishes in Oregon

Creator:: Kettratad, Jes
Abstract:: The Pacific Northwest has a relatively low diversity of primary freshwater fishes with most of the endemism and diversity in the Columbia River and Klamath River. However, the Oregon Coastal Subprovince defined as the coastal rivers from Miami River in the north to Sixes River in the south, has a...
Resource Type:: Dissertation
Full Text:: Oregon. Abstract approved: Douglas F. Markle The Pacific Northwest has a relatively

The testing and repair of polyethylene natural gas distribution pipe

Creator:: Hunt, John
Abstract:: With the dominance of polyethylene as the building material for America's natural gas distribution system and a growing demand for natural gas, there exists and ever increasing need for improved methods of repairing damaged natural gas distribution pipe. This paper serves as the ground work for a multi-part study seeking...
Resource Type:: Masters Thesis
Full Text:: Hunt, Author I L ACKNOWLEDGMENTS I would like to give thanks to everyone who helped make this

An X-radiographic study of the October 2000 Po River flood deposit, Italy

Creator:: Hunt, Louise
Abstract:: During October 2000 the Po River, Italy's largest river, experienced a historically significant flood, producing a deposit on the adjacent prodelta. In December 2000 an event-response study of the deposit was conducted, and during the ensuing 16 months three additional sampling cruises were conducted to study the subsequent evolution of...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Louise Hunt for the degree of

Development of a hybrid modeling framework for intensively managed Douglas-fir plantations in the Pacific Northwest

Creator:: Weiskittel, Aaron R.
Abstract:: Forest growth models in the Pacific Northwest are predominantly empirical. Predictions of yield under alternative silvicultural regimes cannot rely completely on field trials; yet empirical growth models are often inadequate for extrapolating untested regimes and genotypes. The limitations of current models include (1) long time-steps (e.g. 5-10 years); (2) insufficient...
Resource Type:: Dissertation
Full Text:: Intensively Managed Douglas-Fir Plantations in the Pacific Northwest. Abstract approved: Douglas A

Alterations in Douglas-fir crown structure, morphology, and dynamics imposed by the Swiss needle cast disease in the Oregon Coast Range

Creator:: Weiskittel, Aaron R.
Abstract:: Plants respond to defoliation in many different and complex ways, depending on their growth habit and form as well as the extent and duration of the defoliation. Tree crowns have been shown to be quite sensitive to disturbances such as defoliation, however quantitative relationships have rarely been developed, making the...
Resource Type:: Masters Thesis
Full Text:: Douglas-fir Crown Structure, Morphology, and Dynamics Imposed by the Swiss Needles Cast Disease in the

Growth analysis of heterogeneous stands of ponderosa pine and lodgepole pine in central Oregon

Creator:: Mainwaring, Douglas B.
Abstract:: Basal area and height growth were analyzed for individual trees in uneven-aged ponderosa and lodgepole pine stands in central Oregon. Basal area growth was modeled as a function of other stand and tree variables to address five general objectives: 1) to compare the predictive ability of distance-dependent versus distance-independent stand...
Resource Type:: Masters Thesis
Full Text:: approved: _______________________ _ Douglas A. Maguire Basal area and height growth were analyzed for

Morphological variability and seed dormancy of Amelanchier (Rosaceae) grown in Oaxaca, Mexico

Creator:: Cruz-Cruz, Efrain
Abstract:: The purpose of this research was to determine whether hybridization between Amelanchier denticulata. (H.B.K.) Koch and Amelanchier nervosa (Decaisne) StandL occurs in Oaxaca, Mexico, and to evaluate components of yield and germination characteristics and seed dormancy of Amelanchier denticulata. Amelanchier nervosa and Amelanchier denticulata samples and morphological characters were used...
Resource Type:: Dissertation
Full Text:: . Douglas E. Johnson for his insight and advise through the process ofmy studies; especially, for his time

Patterns of retention and vagrancy in larval Lost River and shortnose suckers from Upper Klamath Lake, Oregon

Creator:: Reithel, Susan A.
Abstract:: Larval transport and retention of two endangered suckers were studied in a highly altered lacustrine/riverine complex. The endangered populations of Lost River sucker, Deltistes luxatus, and shortnose sucker, Chasmistes brevirostris, in Upper Klamath Lake (UKL), Oregon are the largest remnant populations of these suckers. Downstream of UKL, the Keno Impoundment...
Resource Type:: Masters Thesis
Full Text:: : _______________________________________________________________ Douglas F. Markle Larval transport and retention of two endangered suckers were

ScholarsArchive@OSU

Influence of habitat characteristics on Greater sage-grouse reproductive success in the Montana Mountains, Nevada

The effects of mechanical damage on residual coastal Douglas-fir (Pseudotsuga menziesii [Mirbel] Franco) following commercial thinning

The Oregon Coastal Subprovince, a new biogeographic subprovince for primary freshwater fishes in Oregon

The testing and repair of polyethylene natural gas distribution pipe

An X-radiographic study of the October 2000 Po River flood deposit, Italy

Development of a hybrid modeling framework for intensively managed Douglas-fir plantations in the Pacific Northwest

Alterations in Douglas-fir crown structure, morphology, and dynamics imposed by the Swiss needle cast disease in the Oregon Coast Range

Growth analysis of heterogeneous stands of ponderosa pine and lodgepole pine in central Oregon

Morphological variability and seed dormancy of Amelanchier (Rosaceae) grown in Oaxaca, Mexico

Patterns of retention and vagrancy in larval Lost River and shortnose suckers from Upper Klamath Lake, Oregon

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