Index Catalog // ScholarsArchive@OSU

The Breeding Ecology and Foraging Niche of Aleutian Terns (Onychoprion aleuticus) in the Kodiak Archipelago, Alaska

Creator:: Tengeres, Jill E.
Abstract:: The Aleutian tern (Onychoprion aleuticus) is a species of high conservation concern in Alaska due to large declines at known breeding locations since the 1960s. Due to the small population size and ephemeral behavior of this species on the nesting grounds, there is little basic biological information available and data...
Resource Type:: Masters Thesis
Full Text:: Donald E. Lyons The Aleutian tern (Onychoprion aleuticus) is a species of high conservation

Atlantic Puffin (Fratercula arctica) Foraging Ecology During Marine Heatwave Conditions

Creator:: Kennerley, William L.
Abstract:: Marine heatwaves (“MHWs”) are discrete periods of anomalously warm ocean conditions that can lead to shifts in the distribution and abundance of marine organisms. Low-trophic level, pelagic forage species are frequently among those affected by MHWs, often resulting in considerable impacts upon their predators. In the North Atlantic Ocean, Atlantic...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: _____________________________________________________ Donald E Lyons Marine

A synthesis of significant developments in the history, calculation, and properties of the number pi

Creator:: Burdg, Donald Eugene
Abstract:: This thesis brings together under one cover a survey of the history of the real number pi along with a study of the present state of its theory, application, and calculation.
Resource Type:: Masters Thesis
Full Text:: , Calculation, and Properties of the Number PI AN ABSTRACT OF THE THESIS OF DONALD EUGENE BURDG for the M.S

Monensin and zeranol alone and in combination for growing-finishing steers and growing heifers

Creator:: Wooten, Donald Griffin
Abstract:: Ninety-two spring-born and 76 fall-born steer and heifer calves (Hereford and Angus x Hereford) averaging 188 and 255 kg, respectively, were utilized in a 2x2 factorial arrangement of treatments to study the effects of zeranol and monensin, alone and in combination, on growth rate, feed efficiency and carcass characteristics. After...
Resource Type:: Masters Thesis
Full Text:: -finishing steers and growing heifers AN ABSTRACT OF THE THESIS OF Donald Griffin Wooten for the degree of

Provisioning, growth and survival of Adélie penguin chicks at Cape Crozier, Ross Island, Antarctica

Creator:: Jennings, Scott
Abstract:: Understanding the factors that contribute to or limit reproductive success is a fundamental objective of the field of ecology, providing insight into the ways ecosystems function and facilitating better management of natural resources. Behaviors that benefit offspring often increase costs to parents, and thus parents must adjust their level of...
Resource Type:: Masters Thesis

Canola meal as a protein source in chicken diets

Creator:: Nassar, Abdul-Rahman H.
Abstract:: Several experiments involving broilers and laying hens were conducted with the primary goal of evaluating the feeding value of Canola meal (CM) in both broiler and laying hen rations. A secondary goal was to study the growth response of broilers receiving higher concentrations of CM in their starter diets to...
Resource Type:: Masters Thesis
Full Text:: . Deep gratitude and appreciation is also extended to Dr. Donald H. Helfer, Yemen Poultry Extension and

Flow characteristics of constructed wetlands : tracer studies of the hydraulic regime

Creator:: Stairs, Darrin B.
Abstract:: Treatment efficiency in a constructed wetland is related in part to the amount of time that a wastewater remains in the system. Current design methods idealize the system as a plug flow reactor and use a "residence time" based solely on the volume of the cell and the flow rate....
Resource Type:: Masters Thesis
Full Text:: porosity accounts for all hydraulic inefficiencies in the system. Watson and Hobson (1989) report

Economic and environmental evaluation of alternative farming systems for row crop and dairy farms in Northern Malheur County

Creator:: Vermilyea, Kathy Jo
Abstract:: Malheur County is located in the southeast corner of Oregon and consists of about 64 million acres of which 260,000 acres is irrigated. Groundwater contamination has been found in a 115,000 acre area in Northeastern Malheur County. The main source of the groundwater contamination is agricultural practices. The overall objective...
Resource Type:: Masters Thesis

The effects of various levels of dietary protein on high producing dairy cows in early lactation

Creator:: Pangborn, Marvin Clark
Abstract:: This project was designed to test the biological effects of three levels of dietary protein (12.7, 16.3 and 19.3% CP on a dry matter basis) on high producing Holstein-Friesian dairy cows. Forty five second lactation or older cows that showed the potential to produce over 31.75 kg (70 lbs) per...
Resource Type:: Masters Thesis
Full Text:: advisors. Dr. Donald W. Claypool served as my Thesis advisor and was a tremendous teacher and friend. Dr

Effect of plant surface area on organic carbon removal in wetlands

Creator:: Kuehn, Elaine Jinx
Abstract:: This study investigated the effect of plant surface area (plant density) on the efficiency of organic carbon removal in a bench-scale constructed wetland. Constructed wetlands are commonly assumed to be biofilm reactors in which organic carbon removal occurs primarily through sedimentation and aerobic degradation by attached microbial biofilms. In conventional...
Resource Type:: Masters Thesis
Full Text:: literature values of 3-15% of volume occupied by plants have been reported (Watson and Hobson 1989, Kadlec

ScholarsArchive@OSU

The Breeding Ecology and Foraging Niche of Aleutian Terns (Onychoprion aleuticus) in the Kodiak Archipelago, Alaska

Atlantic Puffin (Fratercula arctica) Foraging Ecology During Marine Heatwave Conditions

A synthesis of significant developments in the history, calculation, and properties of the number pi

Monensin and zeranol alone and in combination for growing-finishing steers and growing heifers

Provisioning, growth and survival of Adélie penguin chicks at Cape Crozier, Ross Island, Antarctica

Canola meal as a protein source in chicken diets

Flow characteristics of constructed wetlands : tracer studies of the hydraulic regime

Economic and environmental evaluation of alternative farming systems for row crop and dairy farms in Northern Malheur County

The effects of various levels of dietary protein on high producing dairy cows in early lactation

Effect of plant surface area on organic carbon removal in wetlands

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