Index Catalog // ScholarsArchive@OSU

Natural history and evolution of a color polymorphism in Rana pipiens, the northern leopard frog

Creator:: Hoffman, Eric A.
Abstract:: A primary goal of population genetics is to identify the role of microevolutionary forces in producing observed patterns of molecular and phenotypic variation. I conducted four studies in the northern leopard frog, Rana pipiens, to determine just how mutation, migration, genetic drift, and selection influenced, genetic structure of mitochondrial DNA...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Eric A. Hoffman for the

Direct effects and tradeoffs affect vegetative growth and sexual reproduction in an invasive seagrass experiencing different disturbance regimes

Creator:: Henderson, Jeremy Scott
Abstract:: Disturbance has both direct and indirect ramifications that can influence species abundance, distribution, and ultimately the diversity found within a community. As a result, we might expect disturbance to play a particularly important role in the ability of non-native species to proliferate outside of their native range. In practice, disturbance...
Resource Type:: Masters Thesis
Full Text:: 286 287 288 289 290 291 Jeremy S. Henderson and Sally D. Hacker 292 293 294

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

Adaptive diversity and divergence at frog antimicrobial peptide loci

Creator:: Tennessen, Jacob A.
Abstract:: In this dissertation I study evolutionary patterns at genes encoding antimicrobial peptides (AMPs) in frogs. AMPs are short, amphipathic, cationic, secreted proteins that kill bacteria and other pathogens through a non-catalytic mechanism that involves binding to and disrupting the microbial cell membrane. In many animal taxa, positive selection is much...
Resource Type:: Dissertation
Full Text:: Michael S. Blouin In this dissertation I study evolutionary patterns at genes encoding antimicrobial

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

Genetic and phenotypic variation associated with the resistance gene SOD1 in Biomphalaria glabrata, an important intermediate host of Schistosomiasis

Creator:: Bonner, Kaitlin M.
Abstract:: Schistosomiasis afflicts 200 million people and is responsible for 200,000 deaths per year. The infection is caused by a digenean trematode in the genus Schistosoma. The parasite must cycle through both a vertebrate (human) and invertebrate (snail) host to complete the life cycle. My dissertation focuses on the genetic mechanisms...
Resource Type:: Dissertation
Full Text:: Intermediate Host of Schistosomiasis Abstract approved: Michael S. Blouin Schistosomiasis afflicts 200

Density-dependent selection and the maintenance of genetic variation in life-history attributes : evidence from tribolium castaneum and t. confusum in temporally heterogeneous environments

Creator:: Riddle, Russel R.
Resource Type:: Dissertation
Full Text:: : Peter S. Dawson Density-dependent selection was studied in laboratory popula- tions of two species of

Larval dispersal in marine fishes: novel methods reveal patterns of self-recruitment and population connectivity

Creator:: Christie, Mark R.
Abstract:: Many marine fish populations are severely declining due to over-fishing, loss of both juvenile and adult habitats, and accelerating environmental degradation. Fisheries management and the implementation of marine protected areas (MPAs) and other conservation tools are currently hindered by large gaps in knowledge about larval dispersal and its subsequent effects...
Resource Type:: Dissertation
Full Text:: from: Hitoshi Araki, Kevin Buch, Jeremy Claisse, Jeff Eble, Alex Krupkin, Dellise Ortiz, Kim Page

Steroids regulate α2,6-sialic acid-containing glycoconjugates in murine uterine epithelium at the time of implantation

Creator:: Gaza-Bulseco, Georgeen S.
Abstract:: Sialic acids are involved in many cellular interactions. They can serve as an adhesion ligand or act as an inhibitor to cellular adhesion by charge repulsion or by masking potential ligands. Although sialic acids are implicated in the process of blastocyst implantation, their expression and regulation in uterine epithelium of...
Resource Type:: Masters Thesis
Full Text:: S. Gaza-Bulseco for the degree of Master of Science in Zoology presented on June 1, 2000. Title

On the evolution of correlated color traits in garter snakes

Creator:: Westphal, Michael F.
Abstract:: How complex traits evolve continues to be a major focus of evolutionary investigation. A current topic of debate is the hypothesis that the phenotypic integration of complex traits gives rise to evolutionary constraints. I studied two color traits in the common garter snake, Thamnophis sirtalis, that show a high level...
Resource Type:: Dissertation
Full Text:: Lutterschmidt, Dr. Heather Waye, Dr. Eric Hoffman, Devon Quick, Amy Harwell, M. Rockwell Parker, Barbara Han

ScholarsArchive@OSU

Natural history and evolution of a color polymorphism in Rana pipiens, the northern leopard frog

Direct effects and tradeoffs affect vegetative growth and sexual reproduction in an invasive seagrass experiencing different disturbance regimes

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

Adaptive diversity and divergence at frog antimicrobial peptide loci

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

Genetic and phenotypic variation associated with the resistance gene SOD1 in Biomphalaria glabrata, an important intermediate host of Schistosomiasis

Density-dependent selection and the maintenance of genetic variation in life-history attributes : evidence from tribolium castaneum and t. confusum in temporally heterogeneous environments

Larval dispersal in marine fishes: novel methods reveal patterns of self-recruitment and population connectivity

Steroids regulate α2,6-sialic acid-containing glycoconjugates in murine uterine epithelium at the time of implantation

On the evolution of correlated color traits in garter snakes

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