Index Catalog // ScholarsArchive@OSU

Vegetation, Bryophytes, Lichens, Environment, and Stand Dynamics in Forests of the Swan Valley, Montana

Creator:: McCune, Bruce and Antos, Joseph A.
Abstract:: We sampled vegetation, bryophytes, lichens, environment, and stand dynamics in 56 plots in the Swan Valley, Montana in 1975-1978. The data include complete inventory of trees in 375 m2 plots, with whole-plot ocular estimates of plant cover by species, transect sampling of the ground layer bryophytes and lichens with microplots,...
Resource Type:: Dataset
Full Text:: macrolichen species; ground dwelling SpeciesLookup.csv Subset of plots used in McCune & Antos publications

Description and classification of the forests of the upper Illinois River drainage of Southwestern Oregon

Creator:: Atzet, Thomas
Abstract:: The purpose of this study was to develope a plant community classification within the Siskiyou mountains, a small range within the Klamath geological province well known for its geologic and floristic diversity. Forest land managers have expressed the need for identification of basic Land classes that will aid in the...
Resource Type:: Dissertation
Full Text:: CLASSIFICATION OF THE FORESTS OF THE UPPER ILLINOIS RIVER DRAINAGE OF SOUTHWESTERN OREGON Abstract approved

Distribution of understory species in relation to maximum and minimum tree influence in the montane forest of the Central Oregon Cascades

Creator:: Robinson, Andrew Frederick, Jr.
Abstract:: Twenty sites of uniform topography and soil were select ed in the montane forest found on the East flank of the Central Oregon Cascades. These sites were located along a vegetational gradient composed of five plant communities: Abies/Pachistima, Pinus/Ceanothus, Pinus Arctostaphylos-Purshia, Pinus/Purshia/Festuca, and Juniperus Festuca. An attempt was made to...
Resource Type:: Dissertation
Full Text:: THE CENTRAL OREGON CASCADES Abstract approved: Redacted for Privacy W. W. Chilcote Twenty sites of

Regeneration biology of Erigeron decumbens var. decumbens, an endangered plant of the Willamette Valley

Creator:: Clark, Deborah Louise, 1950-, Finley, Karen K., and Ingersoll, Cheryl A.
Abstract:: Erigeron decumbens var. decumbens, the Willamette daisy, is known only from the Willamette Valley of Oregon. Herbarium records, from the 1800's until 1934, indicate that the Willamette daisy was once common and widely distributed throughout the Willamette Valley (Clark et al. 1993). However, between 1934 and 1980, this taxon was...
Resource Type:: Technical Report
Full Text:: . Cheryl A. Ingersoll Dept. of Botany and Plant Pathology Oregon State University Corvallis, Oregon

Comparative water relations of Abies grandis, Abies concolor and their hybrids

Creator:: Yoder, Barbara J.
Abstract:: Comparisons were made of the tissue water relations, stomatal conductance and growth of grand fir (Abies grandis), white fir (Abies concolor) and their hybrids growing in a western Oregon plantation. The grand fir were naturally-regenerated trees native to the study site. White fir and hybrids were the progeny of controlled...
Resource Type:: Masters Thesis

Strobilus production and growth of Pacific yew under a range of overstory conditions in western Oregon

Creator:: DeFazio, S. P., Vance, N. C., and Wilson, M. V.
Abstract:: Strobilus production, growth, and morphology of Pacific yew (Taxus brevifolia Nutt.) were examined at three sites in the Cascade Mountains and one site in the Willamette Valley of western Oregon. Strobilus production on branch segments was positively associated with overstory openness for male and female trees at all four sites...
Resource Type:: Article
Full Text:: Cascade Mountains and one site in the Willamette Valley of western Oregon. Strobilus production on branch

Phytophthora ramorum colonizes tanoak xylem and is associated with reduced stem water transport

Creator:: Parke, J. L., Oh, E., Voelker, S., Hansen, E. M., Buckles, G., and Lachenbruch, Barbara
Abstract:: Isolation, detection with diagnostic polymerase chain reaction (PCR), and microscopy demonstrated the presence of Phytophthora ramorum in the sapwood of mature, naturally infected tanoak (Lithocarpus densiflorus) trees. The pathogen was strongly associated with discolored sapwood (P < 0.001), and was recovered or detected from 83% of discolored sapwood tissue samples....
Resource Type:: Article
Full Text:: trees. In April 2005, a 40- to 60-year- old mature tanoak (Tree 9135, Oregon Department of Forestry

Forest structure and regeneration in the Tsuga heterophylla - Abies amabilis transition zone, central Western Cascades, Oregon

Creator:: Stewart, Glenn H.
Abstract:: The dynamics of stands in the mid-elevation old-growth Douglas-fir (Pseudotsuga menziesii) forests of the central western Oregon Cascade Range were investigated using stand structure analysis. Trees with different growth rates were commonly present in the same stand, which resulted often in a weak correlation between tree diameter and age. Thus,...
Resource Type:: Dissertation
Full Text:: heterophylla - Abies amabilis transition zone, central Western Cascades, Oregon AN ABSTRACT OF THE THESIS OF

Brown rot of fruits and fruit trees in Oregon

Creator:: Posey, Gilbert Bradley
Resource Type:: Masters Thesis
Full Text:: Brown rot of fruits and fruit trees in Oregon THESIS

Chaparral history, dynamics, and response to disturbance in southwest Oregon : insights from age structure

Creator:: Duren, Olivia
Abstract:: Fuels management on Bureau of Land Management lands in SW Oregon, USA, is motivated by the needs to reduce fire hazard and restore ecosystems thought to be impacted by fire suppression. Chaparral is one of the most characteristic vegetation communities of SW Oregon's interior valleys, and extensive acreages within this...
Resource Type:: Masters Thesis
Full Text:: : ___________________________________________________________________________________ Patricia S. Muir Fuels management on Bureau of Land Management lands in SW Oregon, USA

ScholarsArchive@OSU

Vegetation, Bryophytes, Lichens, Environment, and Stand Dynamics in Forests of the Swan Valley, Montana

Description and classification of the forests of the upper Illinois River drainage of Southwestern Oregon

Distribution of understory species in relation to maximum and minimum tree influence in the montane forest of the Central Oregon Cascades

Regeneration biology of Erigeron decumbens var. decumbens, an endangered plant of the Willamette Valley

Comparative water relations of Abies grandis, Abies concolor and their hybrids

Strobilus production and growth of Pacific yew under a range of overstory conditions in western Oregon

Phytophthora ramorum colonizes tanoak xylem and is associated with reduced stem water transport

Forest structure and regeneration in the Tsuga heterophylla - Abies amabilis transition zone, central Western Cascades, Oregon

Brown rot of fruits and fruit trees in Oregon

Chaparral history, dynamics, and response to disturbance in southwest Oregon : insights from age structure

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