Index Catalog // ScholarsArchive@OSU

Post-dispersal seed fates in a Western Oregon native prairie

Creator:: Clark, Deborah L.
Abstract:: Knowledge of post-dispersal seed fates and other regeneration characteristics is crucial for predicting abundances and distributions of populations and, ultimately, community species composition and diversity. Seed fate studies, however, are rare primarily due to the difficulty of determining seed fates and causes of mortality. This thesis investigated post-dispersal seed fates...
Resource Type:: Dissertation
Full Text:: . Post-dispersal Seed Fates in a Western Oregon Native Prairie by Deborah L. Clark A DISSERTATION

Influence of atmospheric humidity and free water on germination and germ tube growth of Botrytis cinerea Pers.

Creator:: Carre, Deborah Danielle
Abstract:: The influence of atmospheric humidity and free water on germination and germ tube growth of Botrytis cinerea Pers. ex Fr. was studied. Relative humidities (RH) were maintained inside insulated humidity chambers with sulfuric acid solutions of the appropriate concentrations. Insulation was necessary to reduce the incidence of condensation caused by...
Resource Type:: Masters Thesis
Full Text:: BOTRYTIS CINEREA PERS. by Deborah Danielle Carre A THE submitted to Oregon State University in

Progress report II: Restoring prairies: A synthesis of studies on vegetation and invasive species in support of effective management (Year two)

Creator:: Clark, Deborah Louise, 1950- and Wilson, Mark V.
Abstract:: Willamette Valley wetland and upland prairies are some of the most endangered ecosystems in the United States, and provide habitat for many federally listed species. Because these are dynamic systems, subject to ecological succession and invasion by aggressive non-native species, prairies require active management to maintain management goals. This is...
Resource Type:: Technical Report
Full Text:: storage container. 6. Each day make a copy of the raw data and give to Deborah. Protocol for data

Progress report [I]: Restoring prairies: A synthesis of studies on vegetation and invasive species in support of effective management (Year two)

Creator:: Wilson, Mark V. and Clark, Deborah Louise, 1950-
Abstract:: Willamette Valley wetland and upland prairies are some of the most endangered ecosystems in the United States, and provide habitat for many federally listed species. These are dynamic systems, subject to ecological succession and invasion by aggressive non-native species, and require active management to maintain management goals. This is true...
Resource Type:: Technical Report
Full Text:: \BLM - synthesis\Reports\Progress Report HEP040027 (ver 2).wpd PROGRESS REPORT Restoring prairies: A

Native plant revegetation at Butterfly Meadows (Benton County), habitat for the endangered Fender's blue butterfly

Creator:: Clark, Deborah Louise, 1950-
Abstract:: Native prairies, which once dominated the landscape of the Willamette Valley, are considered among the rarest of Oregon's ecosystems and are in critical need of conservation. One of the largest remaining parcels of native upland prairie, Butterfly Meadows (Benton County), is being invaded by Brachypodium sylvaticum (false brome). This site...
Resource Type:: Technical Report
Full Text:: Prepared by Deborah Clark Department of Botany and Plant Pathology Oregon State University

Controlling woody vegetation in wetland prairies, 1994-2001

Creator:: Clark, Deborah Louise, 1950-
Abstract:: Wetland prairies of the Willamette Valley, among the rarest of Oregon’s ecosystems, are threatened by invasion of woody species and non-native pest species. Because fire has been important in maintaining Willamette Valley prairies for at least 1000 years, prescribed burning is a top choice of managers for preventing encroachment of...
Resource Type:: Technical Report
Full Text:: -2001 Prepared by Deborah L. Clark Submitted to Coast

Influence of site, soil, and inoculum density on dwarf bunt (Tilletia controversa Kühn) of winter wheat

Creator:: Clark, Deborah Ann, 1954-
Abstract:: Field microplot studies conducted over two seasons (1982-1984) evaluated the influence of four physically and chemically diverse soils collected from Pacific Northwest wheat fields on the incidence of dwarf bunt of winter wheat caused by Tilletia controversa Kuhn. These soils were placed at Flora and Pendleton, Oregon to determine the...
Resource Type:: Masters Thesis
Full Text:: BUNT OF WHEAT AS INFLUENCED BY SITE, SOIL, AND INOCULUM DENSITY Deborah A. Clark and R. L. Powelson

Demographic analysis of Erigeron decumbens var. decumbens, an endangered plant species of the Willamette Valley, Oregon: 1999 Field Studies

Creator:: Clark, Deborah Louise, 1950-
Abstract:: Erigeron decumbens var. decumbens, known only from the Willamette Valley of western Oregon, is listed as Endangered by the U.S. Fish and Wildlife Service and by the state of Oregon. In 1993 a long-term population monitoring program for Erigeron decumbens var. decumbens was initiated at Baskett Slough National Wildlife Refuge...
Resource Type:: Technical Report
Full Text:: VALLEY, OREGON 1999 Field Studies Prepared by Deborah L. Clark

Effects of Soil Nutrients and Fire on Seedling Establishment of Native Prairie Species

Creator:: Clark, Deborah Louise, 1950-
Abstract:: We sought to determine 1) the relationship between seedling establishment rates of target native prairie species and field levels of three soil nutrients (phosphate, nitrate, and ammonium) recorded in fall, winter, and summer, 2) the effect of fire on these three nutrients, and 3) the overall effect of fire on...
Resource Type:: Poster
Full Text:: *USDA-ARS Corvallis, Oregon USA INTRODUCTION: Historically, the Willamette Valley of Oregon was a vast

Factors determining species composition of post-disturbance vegetation following logging and burning of an old growth Douglas-fir forest

Creator:: Clark, Deborah Louise, 1950-
Resource Type:: Masters Thesis
Full Text:: by Deborah L. Clark A THESIS submitted to Oregon State University in partial fulfillment of the

ScholarsArchive@OSU

Post-dispersal seed fates in a Western Oregon native prairie

Influence of atmospheric humidity and free water on germination and germ tube growth of Botrytis cinerea Pers.

Progress report II: Restoring prairies: A synthesis of studies on vegetation and invasive species in support of effective management (Year two)

Progress report [I]: Restoring prairies: A synthesis of studies on vegetation and invasive species in support of effective management (Year two)

Native plant revegetation at Butterfly Meadows (Benton County), habitat for the endangered Fender's blue butterfly

Controlling woody vegetation in wetland prairies, 1994-2001

Influence of site, soil, and inoculum density on dwarf bunt (Tilletia controversa Kühn) of winter wheat

Demographic analysis of Erigeron decumbens var. decumbens, an endangered plant species of the Willamette Valley, Oregon: 1999 Field Studies

Effects of Soil Nutrients and Fire on Seedling Establishment of Native Prairie Species

Factors determining species composition of post-disturbance vegetation following logging and burning of an old growth Douglas-fir forest

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Conference Name

Creator

Contributor

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Location

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search