Index Catalog // ScholarsArchive@OSU

Floodplain vegetation following over 80 years of intensive land use and de-watering : Lower Owens River, California

Creator:: Risso, Derek A.
Abstract:: Riparian areas in the arid western United States are critical ecosystems that have been severely degraded by a variety of land and water uses over the last 100 years. In this study, the composition and structure of floodplain vegetation along the Lower Owens River in eastern California was quantitatively described...
Resource Type:: Masters Thesis
Full Text:: Intensive Land Use and De- watering: Lower Owens River, California. Abstract approved

The horizontal distribution and vertical migrations of the limnetic zooplankton in Crater Lake, Oregon

Creator:: Hoffman, F. Owen
Abstract:: During the summers of 1967 and 1968 the horizontal distribution and did vertical migrations of zooplankton were studied within the unique environment of Crater Lake. Sampling of the horizontal distribution was done by towing plankton nets vertically in different locations. The vertical distribution was sampled by towing at different depths...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF F. OWEN HOFFMAN (Name) for the M

Estimation of chronically safe zinc concentrations with steelhead trout (Salmo gairdneri) emphasizing ventilatory responses

Creator:: Cairns, Michael A.
Resource Type:: Masters Thesis
Full Text:: approved: Richard A. Tubb A 96 hr toxicity test, measuring ventilation rate, was developed to estimate

Prevalence, geographic distribution, and biology of a dungeness crab, Cancer magister, microsporidian parasite

Creator:: Childers, Richard K.
Abstract:: The microsporidian parasite Nadelspora canceri infects Dungeness crabs, Cancer magister, along the United States Pacific Northwest coast. The prevalence and seasonal variation of N. canceri in Dungeness crabs from Alsea Bay, Oregon, are described based on examination of 2991 crabs collected at monthly intervals from October, 1991 to June, 1993....
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Richard K. Childers for the degree

Relationship between plant and butterfly community composition on upland prairies of the Willamette Valley, Oregon

Creator:: York, Melissa M.
Abstract:: Small remnants of 'natural' habitats exist today throughout much of the world. Upland prairies in the Willamette Valley, Oregon have been nearly eliminated by conversion to agriculture and other uses. As a result, very few prairies remain and at least four butterfly species that require this habitat appear to be...
Resource Type:: Masters Thesis
Full Text:: me grow numerous dendrites, to my committee members, Alix Gitelman and Richard Schmitz, for their

Ecology of Columbian black-tailed deer fawns in western Oregon

Creator:: Pamplin, Nathan P.
Abstract:: Little is known about Columbian black-tailed deer (Odocoileus hemionus columbianus) because of their elusive nature and the logistical difficulty of studying them in densely forested and mountainous terrain. The Oregon Department of Fish and Wildlife has identified fawn survival as an important gap in the current knowledge of demography and...
Resource Type:: Masters Thesis
Full Text:: expresses sincere appreciation to Drs. Richard A. Schmitz and DeWaine H. Jackson, the co-principal

Infection, histopathology and migration of Anisakis sp. (Nematoda:Heterocheiloidea) in Pacific herring (Clupea harengus pallasi) from Yaquina Bay, Oregon

Creator:: Hauck, Arthur Kent
Resource Type:: Masters Thesis
Full Text:: : Richard A. Tubb Infection, histopathologic, and migration studies of Anisakis sp. larvae Dujardin, 1845

Effect of ageing errors on estimates of growth, mortality and yield-per-recruit for the Chilean sardine (Sardinops sagax)

Creator:: Garland, David Ernest
Resource Type:: Masters Thesis
Full Text:: (Sardinops sagax). Abstract approved: Richard A. Tubb Ageing errors produce important changes in the

Avian communities in relation to habitat influenced by fire in a sagebrush steppe landscape

Creator:: Noson, Anna C.
Abstract:: Fire suppression in high-elevation sagebrush steppe over the last century has profoundly influenced the structure and complexity of vegetation communities. Although fire is the primary management tool used to restore these areas, the impact of this management practice on associated avian communities is poorly understood. We examined patterns of habitat...
Resource Type:: Masters Thesis
Full Text:: their guidance and support. T am particularly grateful to Richard A. Schmitz and Richard F. Miller for

White-breasted nuthatch density and nesting ecology in oak woodlands of the Willamette Valley, Oregon

Creator:: Viste-Sparkman, Karen
Abstract:: Habitat loss causes a reduction in available resources for wildlife, alters the configuration of remaining habitat, and may isolate wildlife populations. White-breasted nuthatches (Sitta carolinensis) are experiencing long-term population declines in the Willamette Valley of Oregon, where they are historically associated with oak woodlands. As secondary cavity-nesters, white-breasted nuthatches may...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: __________________________________________________________________ Richard A

ScholarsArchive@OSU

Floodplain vegetation following over 80 years of intensive land use and de-watering : Lower Owens River, California

The horizontal distribution and vertical migrations of the limnetic zooplankton in Crater Lake, Oregon

Estimation of chronically safe zinc concentrations with steelhead trout (Salmo gairdneri) emphasizing ventilatory responses

Prevalence, geographic distribution, and biology of a dungeness crab, Cancer magister, microsporidian parasite

Relationship between plant and butterfly community composition on upland prairies of the Willamette Valley, Oregon

Ecology of Columbian black-tailed deer fawns in western Oregon

Infection, histopathology and migration of Anisakis sp. (Nematoda:Heterocheiloidea) in Pacific herring (Clupea harengus pallasi) from Yaquina Bay, Oregon

Effect of ageing errors on estimates of growth, mortality and yield-per-recruit for the Chilean sardine (Sardinops sagax)

Avian communities in relation to habitat influenced by fire in a sagebrush steppe landscape

White-breasted nuthatch density and nesting ecology in oak woodlands of the Willamette Valley, Oregon

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