Index Catalog // ScholarsArchive@OSU

Effects of variation in ecosystem carryover on biodiversity and community structure of forest floor bryophytes and understory vascular plants : a retrospective approach

Creator:: Traut, Bibit Halliday
Resource Type:: Masters Thesis
Full Text:: Pathology Dean of Graduat chool I understand that my thesis will become part of the permanent collection

Impacts of dredged material disposal on estuarine benthic macrofaunal communities in Coos Bay, Oregon

Creator:: Erman, Lisa T.
Abstract:: Hopper dredge disposal of coarse grained sediment was investigated between May and September, 1986, at a designated disposal area, Site G, in Coos Bay, Oregon. The objectives of the study were to: (a) identify and describe the benthic macrofaunal community structure at Site G during May and September, 1986; (b)...
Resource Type:: Masters Thesis
Full Text:: of Department of General Science Redacted for privacy Dean of Gradilte School Date thesis is

The fate of organic and inorganic nitrogen inputs in an old-growth forest of the central Oregon Cascade Range

Creator:: Holub, Scott M.
Abstract:: Forests in the Pacific Northwest receive very little nitrogen through atmospheric deposition and thus studying the nitrogen cycle in this region can provide insights into how the unpolluted nitrogen cycle functions. I examined the fate of organic nitrogen versus inorganic nitrogen and the effect of tamlins on N retention by...
Resource Type:: Dissertation
Full Text:: June 6, 2002 Approved: Major Professor, representing Chair Dean of Botany and Plant Pathology

Marine Neritic and Epipelagic Community Dynamics: An Investigation of the 'Yin' and 'Yang', No-Analog, and Refugia from a Multi-species Perspective

Creator:: Barceló, Caren
Abstract:: Changes in ocean conditions influenced by climatic fluctuations have lead to changes in individual species distributions, which alter the diversity, communities and species interactions across marine ecosystems worldwide. Assessing the species composition and identifying regions and habitats that can safeguard the persistence of biota are critically important. In this dissertation,...
Resource Type:: Dissertation
Full Text:: Professor, representing Ocean, Earth, and Atmospheric Sciences Dean of the College of Earth, Ocean and

The effects of irrigation water withdrawals on macroinvertebrate community structure and life history strategies

Creator:: Miller, Scott W.
Abstract:: I used current water management practices in central and eastern Oregon and Washington as natural experiments to quantify the effects of irrigation water withdrawals on macroinvertebrate community structure and life history strategies. Reduced discharge had direct (e.g. decreased velocity and wetted habitat) and indirect (e.g. increased conductivity and temperature) effects...
Resource Type:: Dissertation
Full Text:: ______________________________________________________________________ Dean of the Graduate School I understand that my dissertation will become part of

Ecological Consequences of Marine Debris: Understanding Large-Scale Species Transport on Tsunami Debris and Research Priorities in Oregon

Creator:: Gillman, Reva A.
Abstract:: The release of marine debris into the oceans and seas is a global issue of growing concern. These materials are harmful to marine environments and can also transport non-native species to novel habitats. Non-native species floating on marine litter is one of the lesser known impacts associated with marine debris....
Resource Type:: Masters Thesis
Full Text:: Dean of the College of Earth, Ocean, and Atmospheric Sciences Dean of the Graduate School

Patterns of distribution, abundance, and change over time in the marine bird community of Prince William Sound, Alaska, 1989-2012

Creator:: Cushing, Daniel A.
Abstract:: Over recent decades, the marine ecosystems of Prince William Sound (PWS), Alaska have experienced the concurrent effects of a major anthropogenic disturbance, the 1989 Exxon Valdez oil spill (EVOS), and a dynamic atmospheric-oceanic environment. Studies of top marine consumers can provide insights into processes of ecosystem change. Using data collected...
Resource Type:: Masters Thesis
Full Text:: Head of the Department of Fisheries and Wildlife Dean of the Graduate School

Growth and photosynthesis of plants in response to environmental stress

Creator:: Greitner, Carol S.
Resource Type:: Dissertation
Full Text:: Redacted for Privacy Dean of Grad e School (\. Date thesis is presented January 23, 1991 Typed by

Relationships of green-tree retention following timber harvest to forest growth and species composition in the western Cascade Mountains

Creator:: Rose, Coulter R.
Abstract:: National Forest management in the Pacific Northwest is shifting from a focus on commodity production to ecosystem management, in which the health of the entire forest ecosystem is considered, rather than that of a few key species. Ecosystem management includes retention of some live trees following timber harvest (green-tree retention)...
Resource Type:: Masters Thesis
Full Text:: Head of Department of General Science Dean of Graduat hool Date thesis is presented Nnvg.mhpr 1R

Developing models to predict favorable environments for rice blast

Creator:: Calvero, Silvino B.
Abstract:: Statistical analyses were used to develop predictive models of rice blast and to relate the favorability of environment to disease incidence and severity on different rice cultivars at five sites in Asia. The WINDOW PANE program was used to search for weather factors highly correlated with blast. Stepwise and r-square...
Resource Type:: Masters Thesis
Full Text:: Plant Pathology charge of major Head of department of Botany and Plant hology Dean of Gradue Schoo

ScholarsArchive@OSU

Effects of variation in ecosystem carryover on biodiversity and community structure of forest floor bryophytes and understory vascular plants : a retrospective approach

Impacts of dredged material disposal on estuarine benthic macrofaunal communities in Coos Bay, Oregon

The fate of organic and inorganic nitrogen inputs in an old-growth forest of the central Oregon Cascade Range

Marine Neritic and Epipelagic Community Dynamics: An Investigation of the 'Yin' and 'Yang', No-Analog, and Refugia from a Multi-species Perspective

The effects of irrigation water withdrawals on macroinvertebrate community structure and life history strategies

Ecological Consequences of Marine Debris: Understanding Large-Scale Species Transport on Tsunami Debris and Research Priorities in Oregon

Patterns of distribution, abundance, and change over time in the marine bird community of Prince William Sound, Alaska, 1989-2012

Growth and photosynthesis of plants in response to environmental stress

Relationships of green-tree retention following timber harvest to forest growth and species composition in the western Cascade Mountains

Developing models to predict favorable environments for rice blast

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