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A systems classification of watersheds and streams

Creator:: McCullough, Dale A.
Abstract:: Adequate management and scientific investigation of ecosystems depends on classification of landscape systems based on all significant bio-physical and associated cultural properties. The present classification is a hierarchical systems design that can be modeled in terms of a natural system interacting with its level-specific environment. A watershed system in this...
Resource Type:: Dissertation

Resource partitioning by bobcats and coyotes in a coniferous forest

Creator:: Toweill, Dale E.
Resource Type:: Dissertation
Full Text:: and Coyotes in a Coniferous Forest by Dale E. Toweill A ThESIS submitted to Oregon State

Plumage development and growth of young whooping cranes

Creator:: Stephenson, James Dale
Abstract:: Plumage development and growth were studied in young whooping cranes (Grus americana) from hatching until 450 days of age. The downy stage of the young cranes lasted about six weeks; the development of the juvenal plumage took until 100 days of age, and the molt to the adult or all...
Resource Type:: Masters Thesis
Full Text:: developed. Plumage Development and Growth of Young Whooping Cranes by James Dale Stephenson A THESIS

Some factors that influence the responses of starlings to aversive visual stimuli

Creator:: Arhart, Dale Keith
Resource Type:: Masters Thesis
Full Text:: Aversive Visual Stimuli by Dale Keith Arhart A THESIS submitted to Oregon State University in partial

Increasing Thiamine Concentrations in Lake Trout Eggs from Lakes Huron and Michigan Coincide with Low Alewife Abundance

Creator:: Riley, Stephen C., Rinchard, Jacques, Honeyfield, Dale C., Evans, Allison N., and Begnoche, Linda
Abstract:: Lake trout Salvelinus namaycush in the Laurentian Great Lakes suffer from thiamine deficiency as a result of adult lake trout consuming prey containing thiaminase, a thiamine-degrading enzyme. Sufficiently low egg thiamine concentrations result in direct mortality of or sublethal effects on newly hatched lake trout fry. To determine the prevalence...
Resource Type:: Article
Full Text:: . Geological Survey, Great Lakes Science Center, 1451 Green Road, Ann Arbor, Michigan 48105, USA Dale C

Multiscale habitat electivity and movement patterns by adult spring chinook salmon in seven river basins of northeast Oregon

Creator:: Price, David M.
Abstract:: I examined habitat electivity and movement patterns of adult spring chinook salmon at microhabitat and channel unit spatial scales, and seasonal to annual temporal scales in seven streams in the Grande Ronde, John Day, and Imnaha basins. The objective was to compare habitat use and availability among streams, channel units,...
Resource Type:: Masters Thesis
Full Text:: , except the Middle Fork John Day River. Radio-tagged chinook showed a high fidelity to habitats, except

Feeding Ecology and Growth of Juvenile Chinook Salmon (Oncorhynchus tshawytscha) During Early Marine Residence

Creator:: Litz, Marisa Norma Chantal
Abstract:: The early marine phase following freshwater emigration has been identified as a critical period in salmonid (Oncorhynchus spp.) life history, characterized by high but variable mortality. Consistent with the “growth-mortality” and “bigger-is-better” hypotheses, at least some of the mortality during the critical period appears to be size-dependent – with smaller...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Jessica A. Miller The early marine phase following freshwater emigration has been

Riverscape genetics of Oncorhynchus tshawytscha (Chinook salmon) in Siletz River, OR

Creator:: Davis, Chanté D.
Abstract:: Traditional analysis in population genetics evaluates differences among groups of individuals and, in some cases, considers the effects of distance or potential barriers to gene flow. However, many forces may shape genetic variation of organisms in riverine systems. Similarly complex research linking habitat heterogeneity and configuration to genetic structure has...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Michael A. Banks Traditional analysis in population genetics evaluates differences

Greater sage-grouse reproductive ecology : linkages among habitat resources, maternal nutrition, and chick survival

Creator:: Gregg, Michael A.
Abstract:: Greater sage-grouse (Centrocercus urophasianus) populations declined range wide during the past 50 years. Grouse populations were 2-3 times larger than the current population as recently as the early 1970's. In addition to habitat loss and fragmentation, declines were attributed habitat degradation that caused reduced productivity. Because chick survival remains the...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Michael A. Gregg for the

The Ecophysiology of Thiamine Deficiency Complex : Evaluating Sources of Thiaminase in Great Lakes Food Webs

Creator:: Evans, Allison N.
Abstract:: Thiamine (vitamin B₁) is required by all living organisms for carbohydrate metabolism and synthesis of amino acids. Thiamine deficiency is responsible for several related classes of early life stage mortality disorders in salmonines, including Thiamine Deficiency Complex (TDC) in the Laurentian Great Lakes, Cayuga Syndrome in the Finger Lakes, and...
Resource Type:: Dissertation
Full Text:: : ___________________________________________________________________ Scott A. Heppell Thiamine (vitamin B1) is required by all living organisms for carbohydrate

ScholarsArchive@OSU

A systems classification of watersheds and streams

Resource partitioning by bobcats and coyotes in a coniferous forest

Plumage development and growth of young whooping cranes

Some factors that influence the responses of starlings to aversive visual stimuli

Increasing Thiamine Concentrations in Lake Trout Eggs from Lakes Huron and Michigan Coincide with Low Alewife Abundance

Multiscale habitat electivity and movement patterns by adult spring chinook salmon in seven river basins of northeast Oregon

Feeding Ecology and Growth of Juvenile Chinook Salmon (Oncorhynchus tshawytscha) During Early Marine Residence

Riverscape genetics of Oncorhynchus tshawytscha (Chinook salmon) in Siletz River, OR

Greater sage-grouse reproductive ecology : linkages among habitat resources, maternal nutrition, and chick survival

The Ecophysiology of Thiamine Deficiency Complex : Evaluating Sources of Thiaminase in Great Lakes Food Webs

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