Index Catalog // ScholarsArchive@OSU

Limnology of Upper Klamath Lake, Oregon, with emphasis on benthos

Creator:: Hazel, Charles R.
Abstract:: Aspects of the limnology and benthic ecology of Upper Klamath Lake, Oregon, are described emphasizing those features that identify its uniqueness. The lake is large, shallow, and characterized by nuisance abundances of Aphanizomenon flos-aquae and midge flies. Results of this study indicate that it does not stratify and dissolved oxygen...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF CHARLES RICHARD HAZEL for the

Response of avian communities to herbicide-induced vegetation changes, western Oregon

Creator:: Morrison, Michael L.
Abstract:: The relationships between avian community structure and herbicide modification of vegetation were analyzed on early-growth clearcuts in western Oregon that had received phenoxy herbicide treatment 1 or 4 years previously. Only minor effects of herbicide treatment were evident 1-year after spraying, except for red adler (Alnus rubra), which still exhibited...
Resource Type:: Dissertation
Full Text:: . Charles Mels w The relationships between avian community structure and herbicide modification of

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

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

Effects of rotenone treatment on the fauna of the Green River, Wyoming

Creator:: Binns, Niles Allen
Resource Type:: Masters Thesis
Full Text:: records. Dr. Charles E. Warren, Oregon State University, provided guidance in the initial organization

A population study of the rainbow trout (Salmo gairdneri) in a Central Oregon stream

Creator:: Osborn, Charles Edwin
Abstract:: The rainbow trout population in Elder Creek, Oregon was studied between June 1965 and November 1966. The physical characteristics of the stream during the summer season were described. Rainbow trout were captured in each of three sections on the stream by electrofishing and were tagged and measured. Population size, mortality,...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF CHARLES EDWIN OSBORN for the

Status and habitat preference of California bighorn sheep on Sheldon National Wildlife Refuge, Nevada

Creator:: Hansen, Michael Charles
Abstract:: A herd of California bighorn sheep (Ovis canadensis californiana), re-introduced to the area of Hell Creek on the Sheldon National Wildlife Refuge in northwestern Nevada, was studied from 15 June 1978 to 20 August 1980. Major vegetation and physiographic types were delineated and described. Habitat preferences were determined from field...
Resource Type:: Masters Thesis
Full Text:: on Sheldon National Wildlife Refuge, Nevada AN ABSTRACT OF THE THESIS OF Michael Charles Hansen

An analysis of the population dynamics of selected avian species

Creator:: Henny, Charles J.
Abstract:: The impact that pesticides may have had on the mortality rates and productivity rates of non-game birds during the last 25 years was evaluated by studying the population dynamics of 16 species. A mathematical model showing the relationships between population parameters that yielded stable populations was developed. The information needed...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF CHARLES JOSEPH HENNY for the

Population characteristics of the dusky Canada goose as determined from banding data

Creator:: Henny, Charles J.
Abstract:: See pdf
Resource Type:: Masters Thesis
Full Text:: CHARLES JOSEPH HENNY Abstract approved: AN ABSTRACT OF THE

Influence of marine environment on age and size at maturity, growth, and abundance of chum salmon, Ohcorhynchus keta (Walbaum), from Olsen Creek, Prince William Sound, Alaska

Creator:: Helle, John H.
Abstract:: Effects of the marine environment on age and size at maturity, early marine growth, and abundance of chum salmon, Oncorhynchus keta, were studied at Olsen Creek during 1959-77. Chum salmon returned to Olsen Creek as predominately 3-, 4-, and 5-year fish; however, age composition varied from year to year. The...
Resource Type:: Dissertation
Full Text:: , Richard Williamson, Robert Gunter, and Dr. Richard Straty of the Auke Bay Laboratory; and Michael McCurdy

ScholarsArchive@OSU

Limnology of Upper Klamath Lake, Oregon, with emphasis on benthos

Response of avian communities to herbicide-induced vegetation changes, western Oregon

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

Contextual systems description of an Oregon coastal watershed

Effects of rotenone treatment on the fauna of the Green River, Wyoming

A population study of the rainbow trout (Salmo gairdneri) in a Central Oregon stream

Status and habitat preference of California bighorn sheep on Sheldon National Wildlife Refuge, Nevada

An analysis of the population dynamics of selected avian species

Population characteristics of the dusky Canada goose as determined from banding data

Influence of marine environment on age and size at maturity, growth, and abundance of chum salmon, Ohcorhynchus keta (Walbaum), from Olsen Creek, Prince William Sound, Alaska

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