Index Catalog // ScholarsArchive@OSU

Sediment reservoir dynamics on steepland valley floors : influence of network structure and effects of inherited ages

Creator:: Frueh, Walter Terry
Abstract:: Sediment deposit ages inferred from radiocarbon dating of stream bank material were used to estimate residence times of valley-floor deposits in headwater valleys of the Oregon Coast Range, USA. Inherited ages of radiocarbon-dated material, i.e., time between carbon fixation in wood and its incorporation in a sediment deposit, can result...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ Stephen T. Lancaster Sediment deposit ages inferred from radiocarbon dating of stream bank

Transformation of Western Hemlock Tree Crowns by Dwarf Mistletoe

Creator:: Calkins, Stephen J.
Abstract:: Hemlock dwarf mistletoe (Arceuthobium tsugense subsp. tsugense) is an arboreal, hemiparasitic plant that principally parasitizes western hemlock (Tsuga heterophylla). Hemlock dwarf mistletoe exerts a profound influence on infected trees that can drastically change the structure of the tree crown due to reduced growth, top dieback, branch deformation and death, resulting...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF Stephen John Calkins for the degree of Master of Science in Sustainable

Evaluation of Compartmentalized Aquifers in the Walla Walla Subbasin of Oregon Using Isotopic and Geochemical Tracers

Creator:: van Stolk, Courtney A.
Abstract:: The Walla Walla Subbasin (WWSB) in Oregon is underlain by formations of the extensive Columbia River Basalt Group (CRBG) which have been deformed by post-Miocene folding and faulting. Extensive irrigation with groundwater from these basalt groups, as well as sedimentary aquifers and surface water diversions from the Walla Walla River,...
Resource Type:: Masters Thesis
Full Text:: . Sincere thanks to my committee members Dr. Michael E. Campana, Dr. Julia Jones, and Dr. Catalina Segura

Comparing Random and Nonrandom Spatial Patterns of Artifacts within Lithostratigraphic Unit 3 at Cooper’s Ferry, Idaho

Creator:: Gregory, Alex R.
Abstract:: Archaeological investigations at the Cooper's Ferry site in Western Idaho have recovered cultural remains dating to 16,000 years ago, suggesting the oldest human occupation recorded in North America. However, many archaeologists have argued the initial peopling of North America occurred no earlier than the opening of an ice-free corridor between...
Resource Type:: Masters Thesis
Full Text:: advisor Dr. Loren Davis and my outside skills committee member Dr. Julia Jones for their specific

How well do American viticultural areas correspond with the soil classes in Oregon's northern Willamette Valley? A question for the wine industry

Creator:: Wood, Douglas T.
Abstract:: The specific geography of individual wine growing regions has long been understood to be a significant factor in predicting both a region’s success in producing high quality grapes, and the resulting demand for wines produced from that region's fruit. In the American wine industry, American Viticultural Areas (AVAs) are increasingly...
Resource Type:: Masters Thesis
Full Text:: would also like to thank my committee members Dr. Julia A. Jones, Dr. Jay S. Noller, and Dr. Susan E

Comparison of MODIS binary and fractional snow cover mapping techniques in the Himalayan Region, Nepal

Creator:: Tuladhar, Preeti
Abstract:: Satellite remote sensing is an effective tool for mapping snow covered area. However, complex terrain and heterogeneous land cover, due to vegetation and patchy snow cover, present challenges to snow cover mapping. This research compares two techniques for mapping snow covered area: binary and enhanced fractional snow cover mapping techniques....
Resource Type:: Capstone Project
Full Text:: rc en t S C A -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 M ea n N D VI Binary MODSCAG NDVI

Plant community dynamics in remnant and restored Willamette Valley wetland prairies

Creator:: Schwindt, Rachel A.
Abstract:: Invasion by exotic species can pose a major challenge for developing native plant communities in wetland restoration projects. Often native plant communities do not develop as anticipated in restored wetlands due to colonization by exotic species that dominate the native plant community. Despite the time and expense to restore wetlands,...
Resource Type:: Masters Thesis
Full Text:: the field. My committee members Dr. Mark Wilson and Dr. Julia Jones gave me invaluable suggestions

An evaluation of a water, sanitation, and hygiene (WASH) program for rural communities in northern Afghanistan

Creator:: Costello, Denise H.
Abstract:: The Water, Sanitation and Hygiene (WASH) sector of international development works to increase access to sustainable, safe water and improved sanitation. Currently, at least 780 million people live without clean drinking water and 2.5 billion without access to improved sanitation (UNICEF & World Health Organization, 2012). Lack of access to...
Resource Type:: Masters Thesis
Full Text:: thank each person on my thesis committee for your encouragement and guidance: Dr. Julia Jones, Dr

Mathematical models of decision processes for dispersing animals

Creator:: Brugger, Max F.
Abstract:: Each chapter in this expository paper considers a mathematical model of an aspect of animal behavior, and how it aﬀects the patterns of movement across and within a landscape. These models are all directly or indirectly related to questions in either Behavioral Ecology or Landscape Ecology, or both. I ﬁrst...
Resource Type:: Capstone Project
Full Text:: with many thoughtful and inspiring scientists: Dr. Julia Jones, Dr. Matt Betts, Dr. Enrique Thomann, Dr

Top-down Influences of bald eagles on common murre populations in Oregon

Creator:: Horton, Cheryl A.
Abstract:: Populations of organisms are influenced by both top-down (predator driven) and bottom-up (environment or resource driven) effects. Seabird research has largely focused on bottom-up factors influencing reproduction, with little emphasis on top-down. Our goal was to better understand top-down impacts on colonial nesting seabirds over a range of spatio-temporal scales....
Resource Type:: Masters Thesis
Full Text:: better mentors. To my committee members, Patricia Kennedy and Julia Jones, thank you for your

ScholarsArchive@OSU

Sediment reservoir dynamics on steepland valley floors : influence of network structure and effects of inherited ages

Transformation of Western Hemlock Tree Crowns by Dwarf Mistletoe

Evaluation of Compartmentalized Aquifers in the Walla Walla Subbasin of Oregon Using Isotopic and Geochemical Tracers

Comparing Random and Nonrandom Spatial Patterns of Artifacts within Lithostratigraphic Unit 3 at Cooper’s Ferry, Idaho

How well do American viticultural areas correspond with the soil classes in Oregon's northern Willamette Valley? A question for the wine industry

Comparison of MODIS binary and fractional snow cover mapping techniques in the Himalayan Region, Nepal

Plant community dynamics in remnant and restored Willamette Valley wetland prairies

An evaluation of a water, sanitation, and hygiene (WASH) program for rural communities in northern Afghanistan

Mathematical models of decision processes for dispersing animals

Top-down Influences of bald eagles on common murre populations in Oregon

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