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Creator:: Mitchell, Diane Lynne
Abstract:: A 22 ha, 1S yeas old, diked permanent pasture in the Salmon River estuary in Lincoln County, Oregon, was chosen for a study to determine the potential for natural salt marsh restoration with dike breaching. Two undiked fragments of relatively undisturbed salt marsh, one at each end of the study...
Resource Type:: Dissertation
Full Text:: Date thesis is presented August 21, 1981 (Date of examination) Typed by Phyllis Taylor-Hill for Diane

Creator:: Byther, Ralph S.
Abstract:: Abundant conidial production occurs from colonized straws and plants infected with Cercosporella herpotrichoides Fron during the cool moist months of the growing season. Experiments were designed to study the survival, inoculum potential and competitive saprophytic ability of conidia in soil. Laboratory results indicated that cool moist soil favors the saprophytic...
Resource Type:: Dissertation

Creator:: Reese, Weldon Harold
Abstract:: This thesis reports a portion of a general ecological study of a stream under conditions of controlled flow and low levels of organic enrichment. It is concerned with the effects of experimental variations of light intensity and concentration of soluble organic enrichment imposed on seasonal variations of temperature and total...
Resource Type:: Dissertation

Creator:: Williams, Harvey Dean
Abstract:: Raw and biologically stabilized Kraft mill effluents were introduced into laboratory artificial streams at a ratio of 15 ml per liter of water over a two year period. Effluent from the stabilization pond of a second mill was introduced at concentrations of from 5 to 40 ml per liter of...
Resource Type:: Dissertation
Full Text:: , 100 lux, was provided by a 1500 watt incandes- cent lamp suspended over the chamber. The light from

Creator:: Halpern, Charles B.
Resource Type:: Dissertation
Full Text:: herbivores in grasslands (Weaver and Bruner 1945, Albertson and Tomanek 1965, Smeins et al. 1976, Watt 1960

Creator:: Martinson, Charlie Anton
Resource Type:: Dissertation
Full Text:: . Smith for constructive criticism of the manuscript. Appreciation is also expressed to Mrs. Ruth Bott

Creator:: Amspoker, Michael C.
Abstract:: Sediment samples were collected from eight sampling sites along the Yaquina Estuary, Oregon from Yaquina Bay to Elk City near the head of the estuary. Samples were collected in November 1973, February 1974, May 1974 and August 1974 from two or three intertidal levels depending on the magnitude of the...
Resource Type:: Dissertation
Full Text:: enlightening discussions. I would also like to thank Drs. Charles W. Reimer and Ruth Patrick for making

ScholarsArchive@OSU