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Filtering by: Creator Smith, Devon Decade 1970-1979 Degree Name Master of Science (M.S.)

Taxonomy and ecology of atrypella spp. and the atrypella community

Creator:

Smith, Roy Edward

Abstract:

Two measured sections of the upper Silurian Douro Formation from Devon Island, N.W.T. were examined for their faunal content with emphasis on the paleoecology and taxonomy of the fauna. Atrypella is believed to have lived with its beaks embedded in the muddy substrate of a somewhat restricted environment. Intermittent, low...

Resource Type:

Masters Thesis
Diet and feeding behavior of cattle at risk to dietary acute bovine pulmonary emphysema (DABPE)

Creator:

Elliott, Jon Carner

Abstract:

The objectives of this study were to determine the diets of cattle at risk to DABPE on stress and inciting pastures and to determine if segregated feeding groups of cattle displayed differential susceptibility to DABPE. Stress pastures were classified and mapped by plant communities and segregated feeding group areas. Cattle...

Resource Type:

Masters Thesis

Full Text:

was conducted in the bunchgrass region of north- central Oregon (Stoddart and Smith 1955). Two stress
Effects of controlled flow reductions on the insect community of an Oregon coastal stream

Creator:

Hafele, Richard E.

Abstract:

Controlled flow reductions of 75% apportioned over four two-week intervals were studied during the summers of 1975 and 1976 on the North Fork of Elk Creek, an Oregon coastal stream. The effects of reduced flows on invertebrate drift, insect benthos, and the available food for juvenile salmonids were measured. Invertebrate...

Resource Type:

Masters Thesis

Full Text:

Smith-Root backpack shocker. The species were coho salmon (Oncorhynchus kisutch) age 0+, and cutthroat