Index Catalog // ScholarsArchive@OSU

Delineating pattern and process in tropical lowland : mealy parrot migration dynamics as a guide for regional conservation planning

Creator:: Bjork, Robin D.
Abstract:: Most reserves fail to capture the habitat heterogeneity necessary to maintain viable populations of wide-ranging species. Methods to determine defensible dimensions of reserves and reserve networks are needed. The primary goal of this study was to develop such methods for lowland tropical forests by examining habitat- and spatial-use patterns of...
Resource Type:: Dissertation
Full Text:: Conservation Planning. / Abstract approved: ..,,. Signature redacted for privacy. Reed F. Noss Most

Multiscale relationships of wintering birds with riparian and wetland habitat in the Willamette Valley, Oregon

Creator:: Adamus, Paul R.
Abstract:: Relatively little is known about wintering bird communities in lowlands of the Pacific Northwest, yet, the condition of winter habitats potentially can pose a major constraint on bird populations. I initiated a study to determine: (1) Which avian species use lowland riparian and wetland habitats in the Willamette Valley during...
Resource Type:: Dissertation
Full Text:: McComb, Raymond O'Connor, Dave Wallin, and members of my committee. Reed Noss, as the committee Chair

Butterfly and flower community composition among prairie-oak ecosystem habitats in the Willamette Valley, Oregon

Creator:: Powers, Breanna F.
Abstract:: Prairie-oak ecosystems in the Willamette Valley, Oregon have experienced habitat loss and degradation; most of these ecosystems are fragmented into smaller patches. Prairie-oak butterfly species, in the Willamette Valley, have decreased dramatically due to loss or degradation of habitat. More research is needed on sustaining the populations of butterflies in...
Resource Type:: Masters Thesis
Full Text:: , Oregon. Noss, R. F., L. E. T. III, and M. J. Scott. 1995. Endangered Ecosystems of the United States

Seasonal floodplain wetlands as fish habitat in Oregon and Washington

Creator:: Baker, Cynthia F.
Abstract:: To begin to understand freshwater seasonal floodplain fish communities in the context of human alteration of the physical system, species introductions and wetland restoration efforts, I studied fish assemblages in fifteen seasonal floodplain wetlands within four geographic regions (coastal, upper Columbia River estuary, Puget Sound and eastern Oregon/Washington) in the...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Cynthia F. Baker for the degree of Doctor of Philosophy in Fisheries

Virulence characteristics of infectious pancreatic necrosis virus (IPNV) in brook trout, Salvelinus fontinalis, fry

Creator:: Maret, Joseph J.
Abstract:: Infectious pancreatic necrosis (IPN) is an acute, contagious disease of trout fry and fingerlings caused by viruses of the family birnaviridae. IPN disease usually results in mortality that is inversely proportional to the age of the fish. While many studies have been carried out to increase our understanding of IPN,...
Resource Type:: Masters Thesis
Full Text:: Leong, and Mark Reed, for their helpful discussion and comments regarding this thesis. lowe special

Biology of the Rex sole, Glyptocephalus zachirus Lockington, in waters off Oregon

Creator:: Hosie, Michael J.
Abstract:: Data are presented on the life history and population dynamics of rex sole (Glyptocephalus zachirus Lockington) collected from Oregon waters between September 1969 and October 1973. Length-weight relationships vary little between sexes or with time of year. Otolith annuli form primarily from January through May and were used for age...
Resource Type:: Masters Thesis
Full Text:: ACKNOWLE DGEMENTS I would like to express appreciation to Dr. Howard F. Horton (Professor of Fisheries

Movement and angler use of four foodfishes in Yaquina Bay, Oregon

Creator:: Beardsley, Alan J.
Resource Type:: Dissertation
Full Text:: ANGLER USE OF FOUR FOODFISHES IN YAQUINA BAY, OREGON I Abstract approved: Howard F. Horton A tagging

Juvenile Coho Salmon (Oncorhynchus kisutch) Diet in Brackish and Freshwater Habitats in the Stream-estuary Ecotones of Coos Bay, Oregon

Creator:: Mackereth, Kailan F.
Abstract:: Loss of lowland estuarine and freshwater off-channel habitats along the Pacific Northwest coast has contributed to the decline of salmonid populations. These habitats serve as nursery grounds for juvenile salmonids providing them with food, winter shelter, and a transition zone between freshwater and saltwater. Lowland areas have undergone anthropogenic alterations...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Kailan F. Mackereth

Development of a progeny marker for steelhead

Creator:: Shippentower, Gene E.
Abstract:: This study was undertaken to determine if strontium chloride could be used to create a trans-generational otolith mark in steelhead (Oncorhynchus mykiss). I completed two strontium injection trials and a survey of juvenile steelhead from various steelhead hatcheries. The two trials measured Sr:Ca ratios in otoliths in response to injections...
Resource Type:: Masters Thesis
Full Text:: solid (Jones 1992). The electrons strike the solid and emit X-rays (Reed 1975; Mulvey 1983; Jones

Trophic adaptations and relationships of rockfishes (Sebastes spp.) of Oregon

Creator:: Pequeño, Germán E.
Abstract:: A comparative analysis of structures related to capture and processing of food, in 624 specimens belonging to 31 species of Sebastes of Oregon was made. The structures studied were the following: the tooth-bearing bones (premaxillary, dentary, vomer, palatine); the maxillary, angular, articular, parasphenoid and glossohyal bones; the lower limb of...
Resource Type:: Dissertation
Full Text:: goodei borealis prert:gr raw reel tiger reed:: saa-icola f&wicks pinniger eh loran t,:ctus sacen tn4s Sc

ScholarsArchive@OSU

Delineating pattern and process in tropical lowland : mealy parrot migration dynamics as a guide for regional conservation planning

Multiscale relationships of wintering birds with riparian and wetland habitat in the Willamette Valley, Oregon

Butterfly and flower community composition among prairie-oak ecosystem habitats in the Willamette Valley, Oregon

Seasonal floodplain wetlands as fish habitat in Oregon and Washington

Virulence characteristics of infectious pancreatic necrosis virus (IPNV) in brook trout, Salvelinus fontinalis, fry

Biology of the Rex sole, Glyptocephalus zachirus Lockington, in waters off Oregon

Movement and angler use of four foodfishes in Yaquina Bay, Oregon

Juvenile Coho Salmon (Oncorhynchus kisutch) Diet in Brackish and Freshwater Habitats in the Stream-estuary Ecotones of Coos Bay, Oregon

Development of a progeny marker for steelhead

Trophic adaptations and relationships of rockfishes (Sebastes spp.) of Oregon

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