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Full-Text Articles in Life Sciences

Small Mammal Survey In Two Geographically Separated Aspen Areas, Apichart Thammaruxs Apr 1975

Small Mammal Survey In Two Geographically Separated Aspen Areas, Apichart Thammaruxs

Theses and Dissertations

Small mammal surveys were conducted in two geographically separated aspen areas, in the Chicken Creek Watershed Management Unit, Utah, and Break Neck Flat, Wyoming. Four small mammal species, Peromyscus maniculatus, Clethrionomys gapperi, Zapus princeps and Eutamias minimus were caught most often in both areas of the aspen ecosystem. Peromyscus maniculatus was usually the most abundant animal trapped at all locations indicating the success of this species in aspen communities. The proportion of each species trapped, however, fluctuated, likely in accordance with responses to periodic biotic and abiotic factors. This data will serve as baseline information for the U.S. Forest Service …


Solubilization Of Acetylcholinestrerae From Subcellular Components Of Mammalian Brain Tissue, John E. Taylor Jan 1975

Solubilization Of Acetylcholinestrerae From Subcellular Components Of Mammalian Brain Tissue, John E. Taylor

University of the Pacific Theses and Dissertations

Since all chemical and electrical input into the cell / occurs via its plasma membrane, many pharmacological agents and hormones initiate their effects by interacting with receptor sites on the plasma membrane or by passing through the cell membrane and interacting with other membranes within the cell. Generally, the precise mechanisms by which these events occur remain relatively unclear. It was thought for many years that the cell membrane was a relatively static structure which allowed molecules to enter the cell at a rate dependent upon their degree of lipid solubility. However, more recently an increasing body of evidence suggests …