Index Catalog // ScholarsArchive@OSU

Ecology of aquatic habitats associated with stream margins

Creator:: Moore, Kelly M. S.
Abstract:: The morphology and ecological importance of habitats associated with the margin of third-order stream channels in the Oregon Cascades were studied in streams in three different riparian types: 450-year-old conifers, 40-year-old alder, and an open, herbaceous-dominated clearcut. Margins, backwaters, and side channels in streams create important habitat for fry of...
Resource Type:: Masters Thesis
Full Text:: 46 CHAPTER III: ECOLOGY OF CUTTHROAT TROUT FRY IN CASCADE MOUNTAIN STREAMS 51 INTRODUCTION 51

Predator assemblages in old-growth and logged sections of small Cascade streams

Creator:: Murphy, Michael Louis
Resource Type:: Masters Thesis
Full Text:: -GROWTH AND LOGGED SECTIONS OF SMALL CASCADE STREAMS Abstract approved: Jathes D. Assemblages of stream

Distribution and juvenile ecology of bull trout (Salvelinus confluentus) in the Cascade Mountains

Creator:: Goetz, Frederick Allen
Abstract:: Distribution and juvenile habitat use of bull trout (Salvelinus confluentus) were surveyed in selected areas of the Upper Willamette, Deschutes, upper Yakima, and upper Cedar River basins in Oregon and Washington from 1989 to 1991, using day snorkeling, night snorkeling, and electrofishing. These methods were selected after a preliminary diel...
Resource Type:: Masters Thesis

Comparing anuran performance and movement

Creator:: Bredeweg, Evan M.
Abstract:: Movement in an important component of an animal’s life cycle when it relies on both aquatic and terrestrial habitats. When multiple species overlap in the use of these habitats, they rely on other methods to reduce competition for shared resources. This dataset measured the jumping performance and movement behavior of...
Resource Type:: Dataset

Ecology of populations of Van Dyke's salamanders in the Cascade Range of Washington State

Creator:: McIntyre, Aimee P.
Abstract:: The Van Dyke's salamander (Plethodon vandyke,) is a rare species endemic to Washington State. It has been found in cool moist microhabitats along streams, splash zones of waterfalls, and headwater seeps. We explored the association of the Van Dyke's salamander with hydrologic condition, geomorphology, disturbance characteristics, and vegetation structure in...
Resource Type:: Masters Thesis
Full Text:: ioiulations of Van Dyke's salamanders in the Cascade Range of Washington State Abstract approved: Richard

Lake classification in the glacially influenced landscape of the north Cascade mountains, Washington, USA

Creator:: Lomnicky, Gregg A.
Abstract:: Factors affecting physical, chemical, and biological characteristics of lakes were investigated through the development of a lake-classification system for 162 lakes in North Cascades National Park Service Complex. A conceptual view of lake development and its relationship to the expression of lake and watershed characteristics was derived. Water quality and...
Resource Type:: Dissertation

Landscape-scale evaluation of genetic structure among barrier-isolated populations of coastal cutthroat trout, Oncorhynchus clarki clarki

Creator:: Guy, Troy J.
Abstract:: Although the effects of extrinsic barriers to dispersal have increasingly been shown to play a large role in the structuring of contemporary genetic diversity, describing the relationship between landscape structure, stochastic disturbance, and genetic diversity remains a major challenge. Here, environmental features for 27 barrier-isolated populations (2,232 individuals) of coastal...
Resource Type:: Masters Thesis

Regions to streams : spatial and temporal variation in stream occupancy patterns of coho salmon (Oncorhynchus kisutch) on the Oregon coast

Creator:: Flitcroft, Rebecca L.
Abstract:: Aquatic ecological investigation is expanding to encompass considerations of multiple scales across large landscapes. Much of the analysis included in this work focuses specifically on coho salmon (Oncorhynchus kisutch) in multiple subbasins on the Oregon coast. Coho salmon were chosen for an investigation of spatial scales, network connections, and life...
Resource Type:: Dissertation
Full Text:: (estimated variogram range) for 1998, 1999, 2001 and 2002 in subbasins of the Alsea and Siletz River

Distribution of nearshore macroinvertebrates in lakes of the northern Cascade Mountains, Washington, USA

Creator:: Hoffman, Robert L.
Abstract:: Although nearshore macroinvertebrates are integral members of high mountain lentic systems, knowledge of ecological factors influencing their distributions is limited. Factors affecting distributions of nearshore macroinvertebrates were investigated, including microhabitat use and vertebrate predation, in the oligotrophic lakes of North Cascades National Park Service Complex, Washington, USA, and the conformity...
Resource Type:: Masters Thesis
Full Text:: relative to the west or east side of the crest of the Cascade Range. These classification variables

Response of trout, sculpins, and salamanders to experimental manipulation of large wood in Cascade Mountain streams

Creator:: Burgess, Jack A.
Abstract:: Response of aquatic vertebrates to increased pool habitat complexity due to abundance of large wood was evaluated experimentally in three streams in the Cascade Mountains of Oregon. No difference in aquatic vertebrate density was detected among treatments, though there was a trend of increasing aquatic vertebrate density with increasing large...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Ecology of aquatic habitats associated with stream margins

Predator assemblages in old-growth and logged sections of small Cascade streams

Distribution and juvenile ecology of bull trout (Salvelinus confluentus) in the Cascade Mountains

Comparing anuran performance and movement

Ecology of populations of Van Dyke's salamanders in the Cascade Range of Washington State

Lake classification in the glacially influenced landscape of the north Cascade mountains, Washington, USA

Landscape-scale evaluation of genetic structure among barrier-isolated populations of coastal cutthroat trout, Oncorhynchus clarki clarki

Regions to streams : spatial and temporal variation in stream occupancy patterns of coho salmon (Oncorhynchus kisutch) on the Oregon coast

Distribution of nearshore macroinvertebrates in lakes of the northern Cascade Mountains, Washington, USA

Response of trout, sculpins, and salamanders to experimental manipulation of large wood in Cascade Mountain streams

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