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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:: : Butterfly community composition varies among prairie-oak ecosystem habitats in Willamette Valley, Oregon

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:: and Butterfly Community Composition on Upland Prairies of the Willamette Valley, Oregon. A Daniel K

Ecological and mortality factors affecting the nesting stage of the Chinese pheasant, Phasianus torquatus Gmelin, in the Willamette Valley, Oregon

Creator:: Eklund, Carl Robert
Resource Type:: Masters Thesis
Full Text:: Stage of the Chinese Pheasant, Phasianus torquatus, Gmelin in the Willamette Valley, Oregon AN

Quilts and quilt-making in the Willamette Valley of Oregon

Creator:: Meloy, Betty Thiessen
Abstract:: This thesis is a documentation of a selected number of nineteenth century quilts studied by the investigator in the Willamette Valley. The quilts were located in museums and in individual's homes. A questionnaire, that was developed for this study of quilts, was filled out as each quilt was examined. Slides...
Resource Type:: Masters Thesis

Progress of irrigation research on Willamette Valley soils

Creator:: Oregon State University. Agricultural Experiment Station
Abstract:: The future expansion of agricultural production in the Willamette Valley will depend to a large degree upon the feasibility of introducing irrigated agriculture on the poorly drained soils in the Valley. A r earch program has been initiated to investigate the feasibility of rigation on poorly drained soils with the...
Resource Type:: Technical Report
Full Text:: Progress of Irrigation Research On Willamette Valley Soils Agricultural Experiment Station, Oregon State

The Ore bin ; Vol.24, No.3 (March 1962)

Creator:: Oregon. Dept. of Geology and Mineral Industries and Glenn, Jerry L.
Resource Type:: Journal
Full Text:: Vol. 24, No. 3 March, 1962 GRAVEL DEPOSITS IN THE WILLAMETTE VALLEY BETWEEN SALEM AND OREGON CITY

The possibilities and problems of forest farming in the Willamette Valley with particular reference to the determination of economic size

Creator:: Collard, Charles G.
Resource Type:: Undergraduate Thesis
Full Text:: Willamette Valley with particular reference to the determination of economic size The Possibilities and

Population and occurrence of birds in varying cover types of the Willamette Valley

Creator:: Buchanan, Robert Leland
Resource Type:: Masters Thesis
Full Text:: of the Willamette Valley POPULATION AND OCCURRENCE OF BIRDS IN VARYING COVER TYPES OF rHE

Genetic and environmental differences in important economic traits of crossbred sheep in spring lamb production

Creator:: De Baca, Roberto Luciano C., 1930-
Resource Type:: Masters Thesis
Full Text:: THEIS submitted to OREGON kï COLLEGE in partial rulfiliment of the requirements for the degree

Notes on some of the weeds of the Willamette Valley

Creator:: Gilbert, Henry C.
Resource Type:: Masters Thesis
Full Text:: Notes on some of the weeds of the Willamette Valley

ScholarsArchive@OSU

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

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

Ecological and mortality factors affecting the nesting stage of the Chinese pheasant, Phasianus torquatus Gmelin, in the Willamette Valley, Oregon

Quilts and quilt-making in the Willamette Valley of Oregon

Progress of irrigation research on Willamette Valley soils

The Ore bin ; Vol.24, No.3 (March 1962)

The possibilities and problems of forest farming in the Willamette Valley with particular reference to the determination of economic size

Population and occurrence of birds in varying cover types of the Willamette Valley

Genetic and environmental differences in important economic traits of crossbred sheep in spring lamb production

Notes on some of the weeds of the Willamette Valley

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