Index Catalog // ScholarsArchive@OSU

Negative effect of purple loosestrife and reed canary grass on the diversity of wetland plant and moth communities

Creator:: Schooler, Shon
Abstract:: Invasive plants have the potential to reduce the diversity of species in plant and animal communities. I examined the negative effect of two invasive wetland plants, purple loosestrife and reed canary grass, on the species richness and diversity of plant and moth communities within 24 wetland study sites in the...
Resource Type:: Dissertation
Full Text:: Plant and Moth Communities. Invasive plants have the potential to reduce the diversity of species in

Ecology and biological control of an apomictic invasive plant, Chondrilla juncea (Asteraceae)

Creator:: Campanella, Donald M.
Abstract:: A study consisting of three parts was undertaken to investigate how variation in species interactions, population genetic structure, epidemiological parameters, and plant breeding system may influence the ecology and biological control of an apomictic invasive plant, Chondrilla juncea (Asteraceae). Interactions between natural enemy species may modify their net effect on...
Resource Type:: Dissertation
Full Text:: All Rights Reserved Ecology and Biological Control of an Apomictic Invasive Plant

Spatial patterns of invasion by exotic plants in a forested landscape

Creator:: Parendes, Laurie Anne, 1958-
Abstract:: Few landscapes are immune to invasion by exotic plant species. The forested landscape in the western Cascade Range of Oregon appears to have some barriers to invasion, but the extensive road network provides a corridor and habitat for a suite of exotic species to enter and become established. This study...
Resource Type:: Dissertation

Role of propagule pressure and priority effects on plant establishment during restoration of invaded shrub-steppe

Creator:: Schantz, Merilynn C.
Abstract:: Biological plant invasions are diminishing the ecological integrity and function of ecosystems worldwide. A primary example of this is in the Great Basin of the United States, where invasive annual grasses, like cheatgrass (Bromus tectorum L.) and medusahead (Taeniatherum caput-medusae L. Nevski), are dominating many sagebrush-steppe ecosystems. In these invaded...
Resource Type:: Dissertation
Full Text:: neighboring vegetation height on seed dispersal: implications for invasive plant management. Weed Science

Vegetation changes of communities containing medusahead (Taeniatherum asperum (Sim.) Nevski) following herbicide, grazing, and mowing treatments

Creator:: Turner, Robert Bruce
Abstract:: Studies were conducted from 1962 to 1966 to investigate the effectiveness of several practices in manipulating medusahead (Taeniatherum asperum (Sim. ) Nevski) infested and/or dominated ecosystems by releasing competition in favor of perennial grasses. Several herbicide treatments were evaluated for selective control of medusahead and cheatgrass (Bromus tectorum L. )...
Resource Type:: Dissertation
Full Text:: River hills of eastern Oregon. On foothill range in western Oregon, sheep grazing and mow- ing

The influence of biophysical feedbacks and species interactions on grass invasions and coastal dune morphology in the Pacific Northwest, USA

Creator:: Zarnetske, Phoebe Lehmann
Abstract:: Biological invasions provide a unique opportunity to study the mechanisms that regulate community composition and ecosystem function. Invasive species that are also ecosystem engineers can substantially alter physical features in an environment, and this can lead to cascading effects on the biological community. Aquatic-terrestrial interface ecosystems are excellent systems to...
Resource Type:: Dissertation
Full Text:: the mechanisms that regulate community composition and ecosystem function. Invasive species that are

Twenty-one years of secondary succession in Pseudotsuga forests of the western Cascade Range, Oregon

Creator:: Halpern, Charles B.
Resource Type:: Dissertation
Full Text:: . Halpern and Jerry F. Franklin Department of Botany and Plant Pathology Oregon State University

Characteristics of some vegetation-soil units in the Juniper Zone in central Oregon

Creator:: Driscoll, Richard S., 1928-
Resource Type:: Dissertation

Directing ecological succession : the role of competition in restoring semi-arid grasslands dominated by invasive plants

Creator:: Mangla, Seema
Abstract:: Successful ecosystem restoration requires an understanding of the ecological processes directing succession. One of the challenges in the semi-arid grasslands of western United States is replacement of native species by invasive annual grasses. Solutions to this problem require identifying and manipulating ecological processes that direct succession to favor desired vegetation....
Resource Type:: Dissertation
Full Text:: which intra- versus inter-specific competition controls invasive and native plant growth during the

Economic and social impacts of restoration : a case study of the Great Basin Region

Creator:: Satyal, Vijayanand H.
Abstract:: The last five decades of research in arid land ecology cites Invasive species as a source of imbalances in biodiversity through habitat destruction and reductions of native species through ecosystem alterations in favor of non-native species. Invasive species are known to damage not only the surrounding ecosystem but also cause...
Resource Type:: Dissertation
Full Text:: : _____________________________________________________________ John A Tanaka The last five decades of research in arid land ecology cites Invasive species as

ScholarsArchive@OSU

Negative effect of purple loosestrife and reed canary grass on the diversity of wetland plant and moth communities

Ecology and biological control of an apomictic invasive plant, Chondrilla juncea (Asteraceae)

Spatial patterns of invasion by exotic plants in a forested landscape

Role of propagule pressure and priority effects on plant establishment during restoration of invaded shrub-steppe

Vegetation changes of communities containing medusahead (Taeniatherum asperum (Sim.) Nevski) following herbicide, grazing, and mowing treatments

The influence of biophysical feedbacks and species interactions on grass invasions and coastal dune morphology in the Pacific Northwest, USA

Twenty-one years of secondary succession in Pseudotsuga forests of the western Cascade Range, Oregon

Characteristics of some vegetation-soil units in the Juniper Zone in central Oregon

Directing ecological succession : the role of competition in restoring semi-arid grasslands dominated by invasive plants

Economic and social impacts of restoration : a case study of the Great Basin Region

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