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Filtering by: Creator Wright, Kristopher Keith Language English [eng]

A multi-trophic level examination of recreational impacts on a national wild and scenic river

Creator:

Wright, Kristopher Keith

Abstract:

Initially, components of an aquatic food web were examined to study impacts of recreational use on the aquatic ecology of Quartzville Creek, Oregon in 1995 and 1996. Measurements of the food web components consisted of observations of harlequin ducks (Histrionicus histrionicus), visual counts of the larval caddisfly Dicosmoecus gilvipes, benthic...

Resource Type:

Masters Thesis
From continua to patches : longitudinal patterns in the Middle Fork of the John Day River, Oregon

Creator:

Wright, Kristopher Keith

Abstract:

The Middle Fork John Day River is composed of low gradient, alluvial valley segments separated by constrained, canyon-like reaches, and has a history of multiple land-uses. These factors can alter the physical and biological structure of streams, and disrupt the longitudinal river continuum. I examined habitat, fish, macroinvertebrates, and primary...

Resource Type:

Dissertation