Index Catalog // ScholarsArchive@OSU

Fall directions and breakage of riparian trees along streams in the Pacific Northwest

Creator:: Sobota, Daniel J.
Abstract:: In the Pacific Northwest, regulatory agencies have recently implemented management strategies for restoration and maintenance of wood recruitment to streams over time. This allochthonous organic material is a critical component in the geomorphic and biological structure of forested streams. Mathematical models are commonly used to evaluate long-term wood dynamics in...
Resource Type:: Masters Thesis
Full Text:: Directions and Breakaqe of Riparian Trees alonq Streams in the Pacific Northwest Stanley V. c rego In the

Coexistence of top predators in headwater streams : pathways of intraguild predation between Pacific Giant salamander larvae and cutthroat trout

Creator:: Rundio, David E.
Abstract:: The coexistence of multiple predators may have important consequences for the structure and function of communities. Interactions between predators may strongly affect their combined direct and indirect effects on prey populations and lower trophic levels. Predators often have size-structured populations, which may result in intraguild predation characterized by complex trophic...
Resource Type:: Masters Thesis
Full Text:: predation. In Pacific Northwest forested ecosystems, Pacific giant salamanders (Dicamptodon tenebrosus

Interactions between western hemlock mycorrhizal fungi and wood rotting fungi in a system simulating Douglas-fir nurse logs in Pacific Northwest forests

Creator:: Tuininga, Amy R.
Abstract:: Decomposing logs in Douglas-fir - western hemlock forests in the Pacific Northwest are systems in which many organisms interact. Fungi in these systems include both mycorrhizal fungi associated with hemlock seedlings and many species of saprotrophic wood decomposer fungi. It is very likely that these two groups of fungi interact...
Resource Type:: Masters Thesis

Riparian vegetation and larval Pacific Giant (Dicamptodon tenebrosus) and adult Western Redback (Plethodon vehiculum) salamanders in the Oregon Coast Range

Creator:: Graff, Paula (Paula Hayes)
Abstract:: Riparian areas in the Pacific Northwest provide important biotic and abiotic features, such as down wood, moist microsites, and abundant invertebrate prey that benefit aquatic and terrestrial amphibians. Reported high densities of amphibians from streams and riparian areas in the Pacific Northwest highlight their importance in riparian food webs. Amphibians...
Resource Type:: Masters Thesis
Full Text:: W. Daniel Edge Riparian areas in the Pacific Northwest provide important biotic and

Correlation between structural heterogeneity and arthropod biodiversity : implications for management of Pacific Northwest forests

Creator:: Madson, Stephanie Lee
Abstract:: The "old-growth controversy" in the Pacific Northwest recognized thinning as the primary silvicultural practice for land managers to produce wildlife habitat while continuing to produce timber. For the foreseeable future, forest stands will be harvested to produce forest gaps and a patchwork of trees of different ages. In order to...
Resource Type:: Masters Thesis
Full Text:: Structural Heterogeneity and Arthropod Biodiversity: Implications for Management of Pacific Northwest

The source area for coarse woody debris in small streams in western Oregon and Washington

Creator:: McDade, Mary Helen
Abstract:: Large organic debris has important biological and physical roles within the stream ecosystem. In order to determine the source area of large organic debris in streams, thirty-nine streams in the Cascade and Coast Ranges of Oregon and Washington were sampled. The distance from point-of-origin to channel was measured for thirty...
Resource Type:: Masters Thesis
Full Text:: forest biome of the Pacific Northwest has many unique characteristics. Climatic factors (mild, wet

A comparative analysis of stream response to disturbance in the Pacific Northwest

Creator:: Hodgins-Carlson, Terry Anne
Abstract:: Published literature about six Pacific Northwest stream systems was contrasted to provide a regional perspective on channel response to disturbance. This investigation was prompted by a combination of recent environmental legislation, mounting social pressures to plan projects at a drainage basin scale, and the difficulty in defining and predicting the...
Resource Type:: Masters Thesis
Full Text:: disturbance in the Pacific Northwest AN ABSTRACT OF THE THESIS OF Terry Anne Hodoins-Carlson for the degree

Spatial distribution of understory vegetation in tree canopy gaps of the Pacific Northwest

Creator:: London, Sharon Gail
Abstract:: Understory vegetation in artificially created tree canopy gaps in the Pacific Northwest was studied to determine 1) variation in understory vegetation cover between gap edges and gap centers, as well as between control and treatment plots, 2) spatial patterns of biomass and difference in biomass patterns among plots, 3) individual...
Resource Type:: Masters Thesis

Patterns of macrophyte wrack deposition on sandy beaches of the Pacific Northwest coast, U.S.A.

Creator:: Reimer, Jessica N.
Abstract:: Dislodged macroalgae and seagrasses, also known as marine wrack, frequently wash into coastal ecosystems from the ocean and are potentially important ecological resources for biological communities. These!nutrient and organic matter subsidies may be especially important on sandy beaches, where little in situ primary productivity exists for higher trophic levels. To...
Resource Type:: Masters Thesis
Full Text:: of the Pacific Northwest coast, U.S.A. ! AN ABSTRACT OF THE THESIS OF! ! ! Jessica N. Reimer for

The ecology of wild turkey (Meleagris gallopavo) foraging in Pacific Northwest ecosystems

Creator:: Evans-Peters, Sara Tondee
Abstract:: Wild turkeys (Meleagris gallopavo) were first successfully introduced into Oregon and Washington in the 1960s; the population has grown in size and expanded in distribution to a point where it provides an important recreational hunting opportunity in both states that generates significant funds for habitat conservation and contributes financially to...
Resource Type:: Masters Thesis
Full Text:: The Ecology of Wild Turkey (Meleagris gallopavo) Foraging in Pacific Northwest Ecosystems by

ScholarsArchive@OSU

Fall directions and breakage of riparian trees along streams in the Pacific Northwest

Coexistence of top predators in headwater streams : pathways of intraguild predation between Pacific Giant salamander larvae and cutthroat trout

Interactions between western hemlock mycorrhizal fungi and wood rotting fungi in a system simulating Douglas-fir nurse logs in Pacific Northwest forests

Riparian vegetation and larval Pacific Giant (Dicamptodon tenebrosus) and adult Western Redback (Plethodon vehiculum) salamanders in the Oregon Coast Range

Correlation between structural heterogeneity and arthropod biodiversity : implications for management of Pacific Northwest forests

The source area for coarse woody debris in small streams in western Oregon and Washington

A comparative analysis of stream response to disturbance in the Pacific Northwest

Spatial distribution of understory vegetation in tree canopy gaps of the Pacific Northwest

Patterns of macrophyte wrack deposition on sandy beaches of the Pacific Northwest coast, U.S.A.

The ecology of wild turkey (Meleagris gallopavo) foraging in Pacific Northwest ecosystems

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