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Temperature, interspecific competition, and the production of juvenile salmonids in experimental stream communities

Creator:: Hughes, Robert M.
Resource Type:: Dissertation

A morphologic and morphometric analysis of the "Sorex vagrans species complex" in the Pacific Coast region

Creator:: Carraway, Leslie N.
Abstract:: Shrews of the "Sorex vagrans species complex" were classified into nine taxa on the basis of morphologic and morphometric analyses of 2,299 specimens from Washington, west of the Cascade Mountains in Oregon, and in the Coast Ranges of California. In Washington, Sorex monticolus setosus and S. m. obscurus occur west...
Resource Type:: Dissertation
Full Text:: Pacific Coast Region Abstract approved: Redacted for Privacy Charles E. Warren Shrews of the "Sorex

Trophic and habitat requirements of two deposit-feeding stream invertebrates, Ptychoptera townesi (Diptera) and Paraleptophlebia spp. (Ephemeroptera)

Creator:: Mattingly, Rosanna
Abstract:: Ptychoptera townesi (false crane fly, Diptera) occur in high densities in an experimental stream section that has not been allowed to exceed bankfull flow for more than two decades, but are quite rare in areas both upstream and downstream from this section. By contrast, Paraleptophlebia spp. (mayfly, Epherneroptera) are relatively...
Resource Type:: Dissertation

Contextual systems description of an Oregon coastal watershed

Creator:: Goetze, Brigitte
Abstract:: Many resource management controversies indicate disagreement about the possible intended and unintended effects of management actions on ecosystems. Researchers have documented a variety of negative effects on specific ecosystems, e. g. the degradation of salmonid habitat due to mass wasting (Hagans et al. 1986). While the effects of some management...
Resource Type:: Dissertation
Full Text:: Description of on Oregon Coastal Watershed Abstract approved: Charles E. Warren Many resource management

The development and maintenance of stream community structure and organization

Creator:: Wevers, Mary Jo
Abstract:: The goal of this study was to better understand stream communities through a perspective that might make their structure, organization, and development more understandable. This goal was approached through the following objectives: 1. To determine the assemblages of stream organisms and define subsystems within a stream community. 2. To explain...
Resource Type:: Masters Thesis
Full Text:: Community Structure and Organization Redacted for Privacy Abstract approved: Charles E. Warren The goal

Life history patterns of two allopatric clupeids : Atlantic menhaden (Brevoortia tyrannus) and gulf menhaden (B. patronus)

Creator:: Powell, Allyn B.
Abstract:: Atlantic menhaden, compared to gulf menhaden, exhibit a life history pattern that appears to be adapted to a more unpredictable reproductive environment. From experiments on laboratory-reared eggs and larvae, Atlantic menhaden have larger eggs with larger yolk volume. They are larger at hatching, utilize their yolk faster, begin feeding at...
Resource Type:: Dissertation
Full Text:: ) and Gulf Menhaden (B. patronus). Abstract approved: Redacted for Privacy Dr. Charles E. Warren

Classification of Icelandic watersheds and rivers to explain life history strategies of Atlantic salmon

Creator:: Gudjonsson, Sigurdur
Abstract:: A hierarchical classification system of Iceland's watersheds and rivers is presented. The classification is based on Iceland's substrate, climate, water, biota, and human cultural influences. The geological formations of Iceland are very different in character depending on their age and formation history. Three major types of formations occur: Tertiary, Plio-Pleistocene,...
Resource Type:: Dissertation
Full Text:: Abstract approved: 4 Redacted for Privacy Charles E. Warren A hierarchical classification system of

A theory of resource utilization

Creator:: Booty, William Michael
Resource Type:: Masters Thesis
Full Text:: OF RESOURCE UTILIZATION Abstract approved: Charles E. Warren Resource utilization theory has lacked

Effects of primary treated and biologically stabilized kraft mill effluents on the production, biomass and growth rates of juvenile salmonids in three stream channels

Creator:: Borton, Dennis Leland
Resource Type:: Dissertation
Full Text:: .4bstract approved: LS (Charles E. Warren) The effects of sublethal concentrations of primary kraft mill

Effects of dieldrin on the intrinsic rate of increase of the guppy, Poecilia reticulata Peters

Creator:: Roelofs, Terry Dean
Resource Type:: Dissertation
Full Text:: Peters. Abstract approved: Redacted for Privacy Charles E. Warren The effects of dieldrin (not less

ScholarsArchive@OSU

Temperature, interspecific competition, and the production of juvenile salmonids in experimental stream communities

A morphologic and morphometric analysis of the "Sorex vagrans species complex" in the Pacific Coast region

Trophic and habitat requirements of two deposit-feeding stream invertebrates, Ptychoptera townesi (Diptera) and Paraleptophlebia spp. (Ephemeroptera)

Contextual systems description of an Oregon coastal watershed

The development and maintenance of stream community structure and organization

Life history patterns of two allopatric clupeids : Atlantic menhaden (Brevoortia tyrannus) and gulf menhaden (B. patronus)

Classification of Icelandic watersheds and rivers to explain life history strategies of Atlantic salmon

A theory of resource utilization

Effects of primary treated and biologically stabilized kraft mill effluents on the production, biomass and growth rates of juvenile salmonids in three stream channels

Effects of dieldrin on the intrinsic rate of increase of the guppy, Poecilia reticulata Peters

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