Index Catalog // ScholarsArchive@OSU

An investigation of the feeding pattern of caged white-crowned sparrows, Zonotrichia leucophrys gambelli (Nuttall), in relationship to vernal fat deposition

Creator:: Moldenhauer, Ralph Roy
Abstract:: Zonotrichia leucophrys gambelii is a strongly migratory race of white-crowned sparrow that exhibits a marked deposition of fat during the vernal migratory period. The physiological basis for fat deposition is a positive energy balance which results from a photo-periodically induced hyperphagia. Simultaneously with the increased caloric intake there is an...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF Ralph Roy Moldenhauer for the (Name) Date thesis is presented M. S. in

Passage, migration behavior, and autoecology of adult Pacific lamprey at Winchester Dam and within the North Umpqua River Basin, Oregon, USA

Creator:: Lampman, Ralph Tatsuo
Abstract:: The extensive reduction in adult Pacific lamprey (Entosphenus tridentatus) counts at many hydroelectric dams in the northwestern USA signals a substantial decline in lamprey numbers across the entire region in the past 40 to 50 years. Among the many potential causes of this decline, obstruction of migration routes has likely...
Resource Type:: Masters Thesis
Full Text:: Ralph Tatsuo Lampman for the degree of Master of Science in Fisheries Science presented on November 22

Relationship of certain blood nitrogen constituents with growth in different genetic groups of sheep

Creator:: Yodseranee, Somchit
Abstract:: Market lamb production usually requires a short period of time. The success of production is therefore dependent upon the growth rate of the lambs which is influenced by milk yields of the ewes. Different growth potentials of animals result from a difference in their utilisation of food. Since metabolism affects...
Resource Type:: Masters Thesis
Full Text:: this opportunity to express my deepest appreciation to Dr. Ralph Bogart for his constant encour

Population and occurrence of birds in varying cover types of the Willamette Valley

Creator:: Buchanan, Robert Leland
Resource Type:: Masters Thesis
Full Text:: is indebted to Dr. Kenneth Gordon for the idea of the present study and also for many practical

Self-diffusion of calcium ions in calcium bentonite gels

Creator:: Fletcher, Gordon Edward
Resource Type:: Masters Thesis
Full Text:: SELF-DIFFUSION OF CALCIUM IONS IN CALCIUM BENTONITE GELS by GORDON EDWARD FLETCHER Â THESIS

Project selection for prospective industrial arts machine-shop teachers

Creator:: Bastow, Paul Gordon
Resource Type:: Masters Thesis
Full Text:: GORDON BASTOW A THESIS su itted to OREGON STATE COLLEGE in partial fulfillment ot the

Studies on resistance of rice to Sogatodes oryzicola (Muir) and a parasitoid, Haplogonatopus sp., in Costa Rica

Creator:: Alvarez B., Francisco
Abstract:: Twenty-one rice cultivars were evaluated to determine the difference between populations of Sogatodes oryzicola (Muir) (Homoptera: Delphacidae) in Costa Rica and Colombia, Survival, mortality and population development of S. oryzicola on five selected cultivars was used to determine levels of plant resistance. The importance and potential of the parasitoid-predator Haplogonatopus...
Resource Type:: Masters Thesis
Full Text:: Costa Rica. Abstract approved: Redacted for Privacy s Ralph E. Beiky Twenty-one rice cultivars were

Toxicity of peppermint monoterpenes to the variegated cutworm, Peridroma saucia Hübner

Creator:: Harwood, Steven Hunter
Abstract:: The toxicity of menthol, menthone, pulegone, limonene, and a-pinene, five monoterpenes found in peppermint (Mentha piperita L.), to the variegated cutworm (Peridroma saucia Hiibner) was characterized by in vivo and in vitro methods. Pulegone and menthone caused slower growth over six days when incorporated into an artificial diet and fed...
Resource Type:: Masters Thesis
Full Text:: -processed by the author ACKNOWLEDGEMENTS I wish to thank my major professor, Dr. Ralph Berry, for his

Population dynamics, distribution, and control of nematodes in highbush blueberries

Creator:: Schroeder, Jan-Marie
Abstract:: Fluctuations in population density of Pratylenchus sp., Trichodorus sp., and Xiphinema americanum s. 1. in three blueberry fields were determined monthly for one year. Pratylenchus densities were greatest in August and least in October. Three distinct periods of population growth occurred; during January, April, and between June and August. Trichodorus...
Resource Type:: Masters Thesis
Full Text:: Phytophthora root rot complex (Ralph Garren, personal communication). Pathogenicity is often related to

Identification and characterization of some psychrotrophic heat resistant/sporeforming bacteria in the Grade A raw milk supply of Oregon

Creator:: Meer, Ralph R.
Abstract:: Heat resistant sporeforming psychrotrophic bacteria were isolated from raw milk samples from 59 Grade A farms in Oregon. Forty-nine of the 59 (83%) raw milk samples in this survey contained sporeforming psychrotrophic bacteria; isolates from twenty-four (40%) of the samples exhibited proteolytic properties. Populations of sporeforming psychrotrophic bacteria ranged from...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Ralph Meer for the degree of

ScholarsArchive@OSU

An investigation of the feeding pattern of caged white-crowned sparrows, Zonotrichia leucophrys gambelli (Nuttall), in relationship to vernal fat deposition

Passage, migration behavior, and autoecology of adult Pacific lamprey at Winchester Dam and within the North Umpqua River Basin, Oregon, USA

Relationship of certain blood nitrogen constituents with growth in different genetic groups of sheep

Population and occurrence of birds in varying cover types of the Willamette Valley

Self-diffusion of calcium ions in calcium bentonite gels

Project selection for prospective industrial arts machine-shop teachers

Studies on resistance of rice to Sogatodes oryzicola (Muir) and a parasitoid, Haplogonatopus sp., in Costa Rica

Toxicity of peppermint monoterpenes to the variegated cutworm, Peridroma saucia Hübner

Population dynamics, distribution, and control of nematodes in highbush blueberries

Identification and characterization of some psychrotrophic heat resistant/sporeforming bacteria in the Grade A raw milk supply of Oregon

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Contributor

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Location

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search