Index Catalog // ScholarsArchive@OSU

Conserving avian diversity in agricultural systems : the role of isolated Oregon white oak legacy trees

Creator:: DeMars, Craig A.
Abstract:: Over one third of the earth’s land surface has been modified to some extent for agricultural purposes. The large global footprint of agriculture, combined with the knowledge that existing reserve networks are likely insufficient for long-term conservation of native biodiversity, has necessitated that agricultural systems contribute to conservation of native...
Resource Type:: Masters Thesis
Full Text:: Craig A. DeMars for the degree of Master of Science in Wildlife Science presented on July 7, 2008

The influence of environmental and physical factors on the thermal patterns of headwater streams

Creator:: Carr, Craig A.
Abstract:: A case study was performed in 2000 and 2001 to characterize the thermal pattern of four morphologically similar eastern Oregon streams and to identify the physical and environmental factors that expressed significant and functionally viable relationships with stream temperature (daily maximum, daily minimum and daily rate of heating). Stream and...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Craig A. Can for the degree of

Biotransformation of 2,4,6-trinitrotoluene by ruminal organisms

Creator:: De Lorme, Marthah J. M.
Abstract:: 2,4,6-Trinitrotoluene (TNT) has been the common munitions used in the world and is an environmental contaminant that is amendable to reductive transformation reactions. The rumen is an extremely reductive environment containing diverse microbial populations. There are 21 pure culture ruminal bacteria species in culture collection, these were tested for the...
Resource Type:: Dissertation
Full Text:: Abstract approved: ________________________________________________ A. Morrie Craig 2,4,6

Molecular characterization of bacterial populations implicated inthe anaerobic metabolism of toxic plant alkaloids from two different experimental and environmental sources

Creator:: Rattray, Rogan MacKay
Abstract:: There have been many studies that describe the protective degradation or metabolism of potentially harmful plant toxins, such as, mimosine from Leucaena leuconcephala, pyrrolizidine alkaloids from tansy ragwort (Senecio jacobaea), oxalate and some mycotoxins by rumen microbes. There are many cases of plant-related toxicoses suffered by ruminant animals where there...
Resource Type:: Masters Thesis
Full Text:: Craig There have been many studies that describe the protective degradation or metabolism of

Metabolism of toxic plant alkaloids in livestock : comparative studies on the hepatic metabolism of pyrrolizidine alkaloids in sheep and cattle and of ergot alkaloids in an endophyte-resistant mouse model

Creator:: Duringer, Jennifer Marie
Abstract:: The pyrrolizidine alkaloids (PAs) and ergot alkaloids are known natural toxicants found in livestock forage. These alkaloids contribute to large economic losses in livestock throughout the world. An understanding of the mechanisms of toxicity and development of better diagnostic tools for better management practices was investigated. Variability exists in the...
Resource Type:: Dissertation
Full Text:: want to thank my major professor, Dr. Craig, for supporting me and for providing me with the

Sources of variability in duration of anesthesia with brevital sodium in snakes

Creator:: Preston, Daniel L.
Abstract:: Variability in the depth and duration of anesthesia in individuals within a species is frequently observed, yet few studies have investigated its causes in reptiles. To evaluate the potential causes of variability in reptile anesthesia, I conducted experiments to test for effects of body temperature, body composition and time post-feeding...
Resource Type:: Honors College Thesis
Full Text:: like to thank my mentors, Dr. Robert Mason and Dr. Craig Mosley for giving me the freedom to take

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
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Craig A. Carr for the degree of Doctor of Philosophy in

The distribution of geologic and artifact obsidian from the Silver Lake/Sycan Marsh geochemical source group, South-Central Oregon

Creator:: Thatcher, Jennifer J.
Abstract:: Geochemical characterization methods are commonly used in the reconstruction of prehistoric raw material use and procurement systems. Trace element studies of lithic source material and artifacts, specifically those made of obsidian, can reveal important information about the environmental and cultural factors which influence the prehistoric distribution of raw material. The...
Resource Type:: Masters Thesis
Full Text:: LA f %LN ">' R T H R N ! CQ .' I .' - '- / _\ / WADA EATERS UPPER Y A 14 0 0 S K I N P4 ? - ' ' P

Fantastic Histories: How Malory's Morte Darthur Influenced Tolkien's The Silmarillion

Creator:: Tatom, Simon K.
Abstract:: My thesis, entitled "Fantastic Histories: How Malory's Morte Darthur Influenced Tolkien's The Silmarillion," argues that J.R.R. Tolkien's Silmarillion shares distinct similarities in style and content with Sir Thomas Malory's Morte Darthur, primarily in the lack of detail in the descriptions of characters and events, as each attempts to create a...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Simon K. Tatom for the degree of

A satellite-derived climatology of global ocean winds

Creator:: Risien, Craig Miller
Abstract:: A satellite-derived Climatology of Global Ocean Winds (COGOW) on a 0.5° latitude by 0.5° latitude grid is presented based on 5-years (August 1999 July 2004) of measurements from the SeaWinds scatterometer that was launched on 19 June 1999 onboard the QuikSCAT satellite. SeaWinds is an active microwave radar that estimates...
Resource Type:: Masters Thesis
Full Text:: THESIS OF Craig Miller Risien for the degree of Master of Science in Marine Resource Management

ScholarsArchive@OSU

Conserving avian diversity in agricultural systems : the role of isolated Oregon white oak legacy trees

The influence of environmental and physical factors on the thermal patterns of headwater streams

Biotransformation of 2,4,6-trinitrotoluene by ruminal organisms

Molecular characterization of bacterial populations implicated inthe anaerobic metabolism of toxic plant alkaloids from two different experimental and environmental sources

Metabolism of toxic plant alkaloids in livestock : comparative studies on the hepatic metabolism of pyrrolizidine alkaloids in sheep and cattle and of ergot alkaloids in an endophyte-resistant mouse model

Sources of variability in duration of anesthesia with brevital sodium in snakes

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

The distribution of geologic and artifact obsidian from the Silver Lake/Sycan Marsh geochemical source group, South-Central Oregon

Fantastic Histories: How Malory's Morte Darthur Influenced Tolkien's The Silmarillion

A satellite-derived climatology of global ocean winds

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