Index Catalog // ScholarsArchive@OSU

The maintenance and stability of the shell color polymorphism in the rocky intertidal gastropod Thais (Nucella) emarginata

Creator:: Davis, Charles Lee
Abstract:: Thais (Nucella) emarginata is a common predatory gastropod of the rocky intertidal system of western North America. It is usually found at low tide on top of its sedentary prey, barnacles and mussels. Thais is also highly polymorphic for shell color, and breeding of isolated females has shown that the...
Resource Type:: Dissertation
Full Text:: Charles Lee Davis for the degree of Doctor of Philosophy in Zoology presented on 14 December 1979 Title

The distribution of biota in Oregon

Creator:: Bratz, Robert Davis
Resource Type:: Dissertation
Full Text:: B IOTA IN OREGON by ROB ERT DAVIS BRATZ A THISIS submitted. to OREGON STATE COILXE in

A distributional study of the birds of Montana

Creator:: Davis, Clifford Vernon, 1914-
Resource Type:: Dissertation
Full Text:: DISTRIBUTIONAL STUDY OF THE BIRDS OF MONTANA by CLIFFORD VERNON DAVIS A THESIS submitted to OREGON

Habitat Use and Ecological Interactions of Invasive Lionfish in the Bahamas

Creator:: Davis, Alexandra C. D.
Abstract:: Invasive species are a growing global economic and ecological problem. Invasive Indo-Pacific lionfish (Pterois spp.) are known to have extreme negative effects on coral-reef communities in the Bahamas, so understating their distribution within and among reefs, what limits their local movements, and the effects they have on native prey species...
Resource Type:: Dissertation
Full Text:: Christina Danielle Davis for the degree of Doctor of Philosophy in Zoology presented on December 4, 2018

Population and conservation genetic structure of the Cascades frog, Rana cascadae throughout the species' range

Creator:: Monsen, Kirsten J.
Abstract:: A major goal of conservation biology is to elucidate the population genetic structure in threatened species and assess the relative importance of the evolutionary forces that shape that population genetic structure. I conducted three studies in the declining amphibian Rana cascadae to assess levels of population genetic differentiation and the...
Resource Type:: Dissertation
Full Text:: DISSER'I'ATION OF 4ichael S. Blouin A major goal of conservation biology is to elucidate the population genetic

Population genetics of ranid frogs : investigating effective population size and gene flow

Creator:: Phillipsen, Ivan C.
Abstract:: This dissertation focuses on the evolutionary forces of genetic drift and gene flow in frog populations. The balance of these two forces and the force of mutation largely determine the amount of neutral genetic variation within populations as well as the degree of genetic similarity among populations. The stochastic evolutionary...
Resource Type:: Dissertation
Full Text:: Gene Flow Abstract approved: Michael S. Blouin This dissertation focuses on

A quantitative genetic analysis of fitness characters in Tribolium confusum

Creator:: Zirkle, Dave F.
Abstract:: The objective of this study is to assess the quantitative genetic structure of fitness characters in Tribolium confusum flour beetles. Estimates of genetic variation and covariation for a series of fitness components (two measurements of survival, larval weight, development time, fecundity, and female productivity) were obtained from two populations of...
Resource Type:: Dissertation
Full Text:: Tribolium confusum Redacted for privacy Abstract approved : P`ter S. Dawson The objective of this study is

Dynamics of enzyme polymorphism in a natural population of the boreal toad, Bufo boreas boreas Baird and Girard : evidence of natural selection via differential mortality in early life history stages

Creator:: Samollow, Paul B.
Resource Type:: Dissertation
Full Text:: -- Peter S. Dawson The genetic effects of heavy mortality during early life history stages in a natural

All hosts are not created equal : variation in amphibian responses to an emerging fungal pathogen and why it matters

Creator:: Gervasi, Stephanie S.
Abstract:: Emerging infectious diseases are increasing globally and are a threat to human, wildlife, and ecosystem health. The emerging fungal pathogen, Batrachochytrium dendrobatidis (Bd), or amphibian chytrid fungus, is associated with worldwide amphibian population declines and extinctions. Bd has been found on every continent where amphibians exist and has been documented...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Stephanie S. Gervasi for the degree of Doctor of Philosophy in

Investigating variation in immunity and infection risk in wild ungulates

Creator:: Dugovich, Brian S.
Abstract:: In the midst of the sixth mass extinction, understanding wildlife disease spillover is critical to maintaining protected wildlife areas. Studying ecoimmunology and wildlife disease ecology helps to understand immune and disease traits in an ecological context, which is invaluable in preventing pathogen spillover between livestock and wildlife. To investigate this...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Brian S. Dugovich

ScholarsArchive@OSU

The maintenance and stability of the shell color polymorphism in the rocky intertidal gastropod Thais (Nucella) emarginata

The distribution of biota in Oregon

A distributional study of the birds of Montana

Habitat Use and Ecological Interactions of Invasive Lionfish in the Bahamas

Population and conservation genetic structure of the Cascades frog, Rana cascadae throughout the species' range

Population genetics of ranid frogs : investigating effective population size and gene flow

A quantitative genetic analysis of fitness characters in Tribolium confusum

Dynamics of enzyme polymorphism in a natural population of the boreal toad, Bufo boreas boreas Baird and Girard : evidence of natural selection via differential mortality in early life history stages

All hosts are not created equal : variation in amphibian responses to an emerging fungal pathogen and why it matters

Investigating variation in immunity and infection risk in wild ungulates

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