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Filtering by: Creator Marston, Richard Alan Degree Name Doctor of Philosophy (Ph.D.)

The geomorphic significance of log steps in forest streams of the Oregon Coast Range

Creator:

Marston, Richard A.

Abstract:

A log step develops when large woody debris extends across the active channel, creating a change in the water surface elevation as the stream spills over the log step. By forming a series of vertical falls, log steps reduce the amount of potential energy available for conversion to kinetic energy...

Resource Type:

Dissertation

Full Text:

streams of the Oregon Coast Range AN ABSTRACT OF THE THESIS OF Richard Alan Marston for the degree of
Sampling methods and injury thresholds for western spotted cucumber beetle in snap beans

Creator:

Weinzierl, Richard Alan

Resource Type:

Dissertation

Full Text:

Cucumber Beetle in Snap Beans AN ABSTRACT OF THE THESIS OF Richard A. Weinzierl for the degree of Doctor