Index Catalog // ScholarsArchive@OSU

Effects of livestock grazing and small mammal populations on endangered Bradshaw's desert parsley (Lomatium bradshawii) at Oak Creek, Willamette Valley, Oregon

Creator:: Drew, Aaron D.
Abstract:: I evaluated the response of the federally listed endangered plant species Bradshaw's desert parsley (Lomatium bradshawii) to livestock grazing and small mammal depredation at Oak Creek, Linn County, Oregon, 1997-1998. I established six study blocks (three each in wooded and herbaceous pastures) with plots in each block randomly assigned to...
Resource Type:: Masters Thesis
Full Text:: Endangered Bradshaw's Desert Parsley (Lomatium bradshawii) at Oak Creek, Willamette Valley, Oregon

Incipient motion and particle transport in gravel-bed streams

Creator:: Matin, Habib
Abstract:: The incipient motion of sediment particles in gravel-bed rivers is a very important process. It represents the difference between bed stability and bed mobility. A field study was conducted in Oak Creek, Oregon to investigate incipient motion of individual particles in gravel-bed streams. Investigation was also made of the incipient...
Resource Type:: Dissertation
Full Text:: . A field study was conducted in Oak Creek, Oregon to investigate incipient motion of individual

An assessment of a Stream Reach Inventory and Channel Stability Evaluation : predicting and detecting flood-induced change in channel stability

Creator:: Morét, Stephanie L.
Abstract:: Pre-flood (1995), and post-flood (1996) channel stability surveys were conducted on 22 reaches along Oak Creek, Benton County, Oregon in an effort to note if the flood of February 1996 altered the channel and if the channel stability survey that was being used accurately predicted the channels resistance to change...
Resource Type:: Masters Thesis
Full Text:: Area 2.1.1 Location of Oak Creek Oak Creek is located in Benton County, Oregon, U.S.A

Modeling the impact of logging debris on the dissolved oxygen balance of small mountain streams

Creator:: Berry, John David
Abstract:: Previous research has indicated that considerable amounts of finely divided slash accumulate in small mountain streams following timber harvesting. The subsequent biological decomposition of this organic matter can result i.n the reduction of dissolved oxygen (DO) concentration to levels as low as 0.6 ppm. These DO levels are lethal to...
Resource Type:: Masters Thesis

Sediment production from forest roads in the upper Oak Creek Watershed of the Oregon Coast Range

Creator:: Amann, Joseph R.
Abstract:: Unpaved roads are sources of chronic sediment in forested watersheds. Bare soil on roads is exposed to erosion from rainfall and runoff Published research on sediment production from forest roads focuses primarily on road characteristics. Since water drives the mechanics of sediment transport, hydrologic variables should correlate with sediment production....
Resource Type:: Masters Thesis

Drift, wood, and grazing cattle : macroinvertebrates in managed streams

Creator:: Reed, T. L.
Abstract:: The importance of active-entry drift at a community-scale was evaluated by testing whether the placement of wood in streams affected the abundance of Baetis spp. mayflies in drift. Baetis were chosen because they use drift as a behavioral strategy and are important in salmonid diets. The density of woody debris...
Resource Type:: Masters Thesis
Full Text:: . northwest of Corvallis, Oregon. Oak Creek is a third-order stream with extensive riparian vegetation

Hydraulic control of grain size distributions and differential transport rates of bedload gravels Oak Creek, Oregon

Creator:: Shih, Shyuer-ming
Abstract:: Grain-size distributions of gravels transported as bedload in Oak Creek, Oregon, show systematic variations with changing flow discharges. At low discharges the gravel distributions are nearly symmetrical and Gaussian. As discharges increase, the distributions become more skewed and follow the ideal Rosin distribution. The patterns of variations are established by...
Resource Type:: Masters Thesis

Monitoring individual particle transport in a gravel bedded stream using a passive radio transponder system, Corvallis, Oregon

Creator:: Childers, Elayne S.
Abstract:: Gathering empirical data on the factors and processes affecting bedload transport in the field is difficult. This project conducted during the winter of 1996 field tested a new passive method of positively tracking individual particle movement. The project was conducted in Oak Creek, a gravel bedded stream, located in Corvallis,...
Resource Type:: Capstone Project
Full Text:: monitoring between Montana State University (Squaw Creek) and Oregon State University (Oak Creek) could lead

Scaling hydrologic impacts from road segments to a small watershed

Creator:: Royer, Timothy Adam
Abstract:: The impact of forest roads on the hydrology of forested watersheds has long been studied. While forest roads have been reported to alter storm runoff at the road segment scale, the potential for changes to be detectable at the small watershed scale has been debated. The purpose of this study...
Resource Type:: Masters Thesis
Full Text:: in the Oregon Coast Range near Corvallis, Oregon. Claire Creek, a small watershed within the Oak

Using in situ turbidity to estimate sediment loads in forested headwater streams : a top-down versus bottom-up approach

Creator:: Meadows, Matthew W.
Abstract:: Suspended sediment and in situ turbidity data from two western Oregon streams, Oak Creek and South Fork Hinkle Creek, were used to estimate annual sediment loads for the 2006 water year (October 1, 2005 to September 30, 2006). Water samples and in situ turbidity observations were taken following the Turbidity...
Resource Type:: Masters Thesis
Full Text:: turbidity data from two western Oregon streams, Oak Creek and South Fork Hinkle Creek, were used in this

ScholarsArchive@OSU

Effects of livestock grazing and small mammal populations on endangered Bradshaw's desert parsley (Lomatium bradshawii) at Oak Creek, Willamette Valley, Oregon

Incipient motion and particle transport in gravel-bed streams

An assessment of a Stream Reach Inventory and Channel Stability Evaluation : predicting and detecting flood-induced change in channel stability

Modeling the impact of logging debris on the dissolved oxygen balance of small mountain streams

Sediment production from forest roads in the upper Oak Creek Watershed of the Oregon Coast Range

Drift, wood, and grazing cattle : macroinvertebrates in managed streams

Hydraulic control of grain size distributions and differential transport rates of bedload gravels Oak Creek, Oregon

Monitoring individual particle transport in a gravel bedded stream using a passive radio transponder system, Corvallis, Oregon

Scaling hydrologic impacts from road segments to a small watershed

Using in situ turbidity to estimate sediment loads in forested headwater streams : a top-down versus bottom-up approach

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