Index Catalog // ScholarsArchive@OSU

Analyzing large paleoclimate datasets : implications for past and future climate change

Creator:: Shakun, Jeremy D.
Abstract:: This dissertation presents the results of statistical analyses of large climate datasets from two time intervals – the 20th century instrumental record and the proxy record of the last deglaciation – in order to understand the forcings and mechanisms of past climate variability. A longstanding question in climate dynamics concerns...
Resource Type:: Dissertation
Full Text:: 1 AN ABSTRACT OF THE DISSERTATION OF Jeremy D. Shakun

Integrating functional trait frameworks into restoration : the role of seed and seedling traits in recruitment success

Creator:: Larson, Julie E.
Abstract:: Seeding is a vital tool to facilitate recovery of degraded ecosystems, but low seedling recruitment rates limit the utility of this practice in a range of ecosystems across the globe. Plant functional traits impact individual fitness through effects on growth, reproduction and survival. Consequently, seed and seedling trait variation among...
Resource Type:: Masters Thesis
Full Text:: Recruitment Success. Abstract approved: Paul S. Doescher Jeremy J. James Seeding is a vital tool to

Ocean Temperature Variability during the Late Pleistocene

Creator:: Hoffman, Jeremy Scott
Abstract:: This dissertation explores one overarching question relevant to the paleoclimate of the latest Pleistocene glacial cycle (approximately the last 130,000 years): “How did spatial and temporal evolution of ocean temperature, both at the surface and interior, relate to other parts of the climate system in the late Pleistocene?” Results from...
Resource Type:: Dissertation
Full Text:: Jeremy Scott Hoffman for the degree of Doctor of Philosophy in Geology presented on August 25, 2016

Community composition and activities of denitrifying bacteria in soils

Creator:: Rich, Jeremy J.
Abstract:: Few studies have directly compared denitrifying community composition and activities in soils by coupling molecular-genetic techniques and traditional measures of denitnfication. I investigated communities of denitrifying bacteria from adjacent meadow and forest soils in the Cascade Mountains, Oregon. A key gene in the denitrification pathway, N₂O reductase (nosZ), served as...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Jeremy J. Rich for the

Survival and behavior of juvenile steelhead trout (Oncorhynchus mykiss) in two small estuaries in Oregon

Creator:: Romer, Jeremy D.
Abstract:: A number of steelhead (Oncorhynchus mykiss) populations are at risk throughout Oregon, including five populations that are federally listed as threatened or endangered. However, little is known about behavior and survival of these fish as they transition from freshwater to seawater. We investigated whether estuarine survival varies on a temporal...
Resource Type:: Masters Thesis
Full Text:: Jeremy D. Romer for the degree of Master of Science in Fisheries Science presented on July 26, 2010

Hydrogeologic field investigation and groundwater flow model of the southern Willamette Valley, Oregon

Creator:: Craner, Jeremy D.
Abstract:: Elevated groundwater nitrate (NO3 -) concentrations in the Southern Willamette Valley (SWV) caused the Oregon Department of Environmental Quality (ODEQ) to declare a Groundwater Management Area (GWMA) in Spring, 2004. To better understand direction of groundwater flow, groundwater age, and nitrate transport pathways of the SWV we developed a steady-state...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Jeremy D. Craner for the degree of Master of Science in Geology

A Phenomenological Study of the Experiences of Rural School Counselors in the State of Georgia in Supporting and Advocating for LGBTQIA+ Students

Creator:: Shain, Jeremy D.
Abstract:: Queer students in American public schools may face significant challenges including unsupportive or hostile peers or staff members (Eisenberg et al., 2017). The culture of rural Southern schools may be particularly challenging for these students as they are less likely to have an active support group and more likely to...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Jeremy D

Role of propagule pressure and priority effects on plant establishment during restoration of invaded shrub-steppe

Creator:: Schantz, Merilynn C.
Abstract:: Biological plant invasions are diminishing the ecological integrity and function of ecosystems worldwide. A primary example of this is in the Great Basin of the United States, where invasive annual grasses, like cheatgrass (Bromus tectorum L.) and medusahead (Taeniatherum caput-medusae L. Nevski), are dominating many sagebrush-steppe ecosystems. In these invaded...
Resource Type:: Dissertation
Full Text:: so grateful that, because of his kindness, Dr. Borman provided them. Dr. Jeremy James helped me

Winterfat seed viability and dormant season livestock grazing

Creator:: Leary, Ryan
Abstract:: Krascheninnikovia lanata (winterfat) is a valuable forage species with an average of 10% crude protein during winter when there are few nutritious options for livestock and wildlife. However, excessive grazing throughout the west has negatively impacted survival of winterfat stands. We hypothesized that four years rest from dormant season livestock...
Resource Type:: Masters Thesis
Full Text:: Appendix D: Analyses Performed ………………..............…………….........53 LIST OF FIGURES Figure

Directing ecological succession : the role of competition in restoring semi-arid grasslands dominated by invasive plants

Creator:: Mangla, Seema
Abstract:: Successful ecosystem restoration requires an understanding of the ecological processes directing succession. One of the challenges in the semi-arid grasslands of western United States is replacement of native species by invasive annual grasses. Solutions to this problem require identifying and manipulating ecological processes that direct succession to favor desired vegetation....
Resource Type:: Dissertation
Full Text:: extraordinary. I am very thankful to my committee member, Jeremy James, for much appreciated and

ScholarsArchive@OSU

Analyzing large paleoclimate datasets : implications for past and future climate change

Integrating functional trait frameworks into restoration : the role of seed and seedling traits in recruitment success

Ocean Temperature Variability during the Late Pleistocene

Community composition and activities of denitrifying bacteria in soils

Survival and behavior of juvenile steelhead trout (Oncorhynchus mykiss) in two small estuaries in Oregon

Hydrogeologic field investigation and groundwater flow model of the southern Willamette Valley, Oregon

A Phenomenological Study of the Experiences of Rural School Counselors in the State of Georgia in Supporting and Advocating for LGBTQIA+ Students

Role of propagule pressure and priority effects on plant establishment during restoration of invaded shrub-steppe

Winterfat seed viability and dormant season livestock grazing

Directing ecological succession : the role of competition in restoring semi-arid grasslands dominated by invasive plants

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