Index Catalog // ScholarsArchive@OSU

Integration of oceanographic information off the Washington and Oregon coasts into west coast groundfish ecology and fisheries management

Creator:: Juan Jorda, Maria Jose
Abstract:: To date, the use of oceanographic data in fisheries management has been limited by the scarcity and the difficulty of accessing complete oceanographic datasets. Consequently, fish stocks are managed with limited knowledge about the habitat where fish live and incomplete understanding of what oceanographic conditions affect their populations. With the...
Resource Type:: Masters Thesis

The size of the Oregon coastal salmon runs in the mid-1800s

Creator:: Meengs, Chad C.
Abstract:: Increasing the abundance of salmon in coastal Oregon rivers and streams is a high priority public policy objective. Salmon runs have been reduced from pre-development conditions (typically defined as the 1 850s), but it is unclear by how much. Considerable resources have been allocated to restoring salmon runs, but it...
Resource Type:: Masters Thesis
Full Text:: rivers based on extrapolations from cannery pack. 35 Changes in Oregon estuary wetlands from 1870 to

Linking greater sage-grouse habitat use and suitability across spatiotemporal scales in central Oregon

Creator:: Freese, Mark T.
Abstract:: Greater Sage-grouse (Centrocercus urophasianus) habitat research has historically focused on fine-scale (0.007 - 0.032 ha) vegetation structure and composition immediately surrounding sites selected by birds. However, little work has evaluated vegetation attributes important for Greater Sage-grouse at a landscape-scale or identified landscape attributes that influence habitat use patterns. Habitat use...
Resource Type:: Masters Thesis
Full Text:: impossible. Thank you Marcy Baumbach, Neil Holocomb, Jamie Nelson, Ben Miller, James Lee, James Rebholtz

Recent periglacial debris flows from Mount Rainier, Washington

Creator:: Copeland, Elizabeth A.
Abstract:: Debris flow initiation is controlled by a complex interaction of geology, geomorphology, climate, and weather. In the Cascade Range of Pacific Northwest and mountainous areas globally, patterns of temperature and precipitation are being altered by climate change, which may in turn impact debris flow initiation. Temperature has increased and patterns...
Resource Type:: Masters Thesis
Full Text:: , 2002; Barnett et al, 2005). Numerous studies examining the potential impacts of climate change on

An application of photogrammetric techniques to the measurement of historic photographs

Creator:: Strausz, David A. Jr
Abstract:: The application of the collinearity solution by resection of the interior and exterior orientation parameters of historical photographs is investigated. The spatial coordinates of seven or more identifiable control points in the field of view of an historical photograph, combined with image coordinates of the control point images, allow solution...
Resource Type:: Capstone Project
Full Text:: forest lands in the western United States. Journal of Range Management 49: 60-67. Hastings, James Rodney

Spatial and age class analysis of managed western juniper (Juniperus occidentalis) woodlands in central Oregon

Creator:: Zophy, Kelley T.
Abstract:: Juniper is a native species to Oregon and confers ecological benefits to wildlife when it is at savannah and transitional densities. Its range and extent have fluctuated with climatic change, but the current range expansion is unprecedented in its extent. The range expansion has been associated with the degradation of...
Resource Type:: Masters Thesis
Full Text:: juniper woodlands that exist today first established prior to 1870 (Gedney et al. 1999). Miller et al

Seed bank response to juniper expansion in the semi-arid lands of Oregon, USA

Creator:: Duncan, Corinne M.
Abstract:: Expansion of Juniperus occidentalis into the sagebrush steppe has resulted in significant changes in understory composition. A consequence of increased J. occidentalis dominance may be a depletion of the seed bank. The potential for depletion is problematic because a reduction in the amount of species available from the seed bank...
Resource Type:: Masters Thesis

Desulfurization of thiophene and dibenzothiophene with hydrogen peroxide in a photochemical microreactor

Creator:: Al-Raie, Ali H.
Abstract:: Sulfur content of fuels and desulfurization of fuels is becoming an important environmental restriction and regulatory issue. In this study new technology for the desulfurization of fuels is considered. Micro scale reactors are introduced for desulfurization of thiophene and dibenzothiophene. Thiophene and dibenzothiophene are mixed with hexane at concentration, C₀...
Resource Type:: Masters Thesis

Interactive influences of wildfire and nonnative species on plant community succession in Hawaii Volcanoes National Park

Creator:: Ainsworth, Alison
Abstract:: The role of fire as a natural disturbance, its interactions with nonnative species and effects of repeated fires in the Hawaiian Islands have received little investigation. We are unsure of the role fire played in shaping forest structure and composition as well as affecting evolutionary processes of the native biota....
Resource Type:: Masters Thesis
Full Text:: . A., R. V. DeCandido, L. P. Burney, F. N. Kostel-Hughes, T. W. Stafford Jr., and H. F. James. 1995

ScholarsArchive@OSU

Integration of oceanographic information off the Washington and Oregon coasts into west coast groundfish ecology and fisheries management

The size of the Oregon coastal salmon runs in the mid-1800s

Linking greater sage-grouse habitat use and suitability across spatiotemporal scales in central Oregon

Recent periglacial debris flows from Mount Rainier, Washington

An application of photogrammetric techniques to the measurement of historic photographs

Spatial and age class analysis of managed western juniper (Juniperus occidentalis) woodlands in central Oregon

Seed bank response to juniper expansion in the semi-arid lands of Oregon, USA

Desulfurization of thiophene and dibenzothiophene with hydrogen peroxide in a photochemical microreactor

Interactive influences of wildfire and nonnative species on plant community succession in Hawaii Volcanoes National Park

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