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Food and habitat partitioning in two groups of coexisting Accipiter

Creator:: Reynolds, Richard T.
Abstract:: Sharp-shinned Hawks (Accipiter striatus), and Cooper's Hawks (A. coo erii) in the conifer forests in northwestern Oregon and A. striatus, A. cooperii, and Goshawks (A. gentilis) in the conifer forests of eastern Oregon were syntopic during the nesting season. In this study density of nests, nest success, and utilization of...
Resource Type:: Dissertation
Full Text:: . Franklin and Dyrness (1973) described the vegetational zones and associated tree species as well as the

Population characteristics and habitat utilization of bighorn sheep, Steens Mountain, Oregon

Creator:: Van Dyke, Walter A.
Abstract:: A herd of re-introduced California bighorn sheep (Ovis canadensis californiana) was studied from 15 June 1976 to 31 August 1977. Thirteen major and seven minor habitats were delineated and described. Habitat use by bighorns was observed throughout the study and a habitat preference value (H.P.V.) was calculated based on use...
Resource Type:: Masters Thesis
Full Text:: am grateful to my committee members - D. S. deCalesta, A. H. Winward, and T. P. Kistner, for their

Home range and habitat use by Roosevelt elk in Olympic National Park, Washington

Creator:: Jenkins, Kurt Jeffrey
Abstract:: This research provides information on the distribution of an unexploited Roosevelt elk population in unaltered habitat in Olympic National Park. Radio-telemetry was used to document home range and habitat use by 11 adult cow elk in the Hoh Valley during March 1978, from 10 June-15 September 1978, and from 1...
Resource Type:: Masters Thesis
Full Text:: ). Lieb (1973) and Franklin et al. (1975) documented the social organization of Roosevelt elk in Prairie

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

Creator:: Roelofs, Terry Dean
Resource Type:: Dissertation
Full Text:: , Benjamin Franklin, Malthus, and others that populations tend to increase in geometric progressions. Lotka

Growth of channel catfish, Ictalurus punctatus (Rafinesque), fed artificial diets in ponds near Corvallis, Oregon

Creator:: Suraswadi, Plodprasop
Abstract:: The experiment was conducted at the Soap Creek farm ponds near Corvallis, Oregon. Oregon Moist Pellet and Purina Trout Chow at three different rates of feeding for each diet were used to feed fingerling channel catfish stocked at the rate of 1,000 per acre. A complete random design and Fisher's...
Resource Type:: Masters Thesis
Full Text:: Total SS = ij Treatment SS = X2 + + Xt 2 - C r 1 as C = correction term ( . 2 X. ) r t when (r

Status of prairie falcons breeding in Oregon

Creator:: Denton, Samuel Jonathon
Abstract:: Distribution of nest sites and reproductive success were determined for prairie falcons breeding in Oregon during 1973 and 1974. The study area encompassed a major portion of the eastern half of the state. I located and monitored 63 breeding attempts during the study and found nest sites in a variety...
Resource Type:: Masters Thesis
Full Text:: elevations (Franklin and Dyrness 1973). Montane communities incorporate primarily ponderosa pine and

Occurrence and relative abundance of small mammals associated with riparian and upland habitats along the Columbia River

Creator:: Hinschberger, Mark Steven
Abstract:: A small mammal inventory of occurrence and relative abundance was conducted in riparian and upland habitats in six segments along the lower Columbia River from the river mouth to McNary Dam (river mile 292) during 1974 and 1975 by removal trapping on standardized trap lines. Analysis of variance was used...
Resource Type:: Masters Thesis
Full Text:: Dam, a distance of approximately 292 river miles. Climate of the study area, discussed by Franklin

Population ecology of a pheasant population augmented by release of game farm pheasants

Creator:: Engbring, John
Resource Type:: Masters Thesis
Full Text:: -226. Franklin, 3. F., and C. T. Dyrness. 1973. Natural vegetation of Oregon and Washington. U. S. For

Productivity and nesting habitat of Great Basin Canada geese : Umatilla National Wildlife Refuge

Creator:: McCabe, Thomas R.
Abstract:: Great Basin Canada goose (Branta canadensis moffitti) productivity and nesting habitat utilization were studied on the Columbia River within the boundaries of the Umatilla National Wildlife Refuge during the springs of 1974 and 1975. Five islands, BL-1, BL-2, SD-1, SD-2, and Telegraph Island (TI), contained 88 percent of the nesting...
Resource Type:: Masters Thesis
Full Text:: resident B. c. moffitti. t ........ . Productivity and Nesting Habitat of Great Basin Canada Geese

Elevated temperature and the production of juvenile Chinook salmon (Oncorhynchus tshawytscha) in a model stream

Creator:: Bisson, Peter Andre
Abstract:: Temperature was elevated approximately 4° C in a model stream relative to an unheated, but otherwise similar control stream. The streams were located outdoors, received identical amounts of exchange water from a nearby creek, and followed natural diurnal and seasonal temperature cycles Juvenile spring chinook salmon (Oncorhynchus tshawytscha) were introduced...
Resource Type:: Dissertation
Full Text:: animals were lost despite efforts to keep the riffle s we t. One window was also replaced in the heated

ScholarsArchive@OSU

Food and habitat partitioning in two groups of coexisting Accipiter

Population characteristics and habitat utilization of bighorn sheep, Steens Mountain, Oregon

Home range and habitat use by Roosevelt elk in Olympic National Park, Washington

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

Growth of channel catfish, Ictalurus punctatus (Rafinesque), fed artificial diets in ponds near Corvallis, Oregon

Status of prairie falcons breeding in Oregon

Occurrence and relative abundance of small mammals associated with riparian and upland habitats along the Columbia River

Population ecology of a pheasant population augmented by release of game farm pheasants

Productivity and nesting habitat of Great Basin Canada geese : Umatilla National Wildlife Refuge

Elevated temperature and the production of juvenile Chinook salmon (Oncorhynchus tshawytscha) in a model stream

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