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The Influence Of Dispersal And Diet Breadth On Patterns Of Genetic Isolation By Distance In Phytophagous Insects, Merrill A. Peterson
The Influence Of Dispersal And Diet Breadth On Patterns Of Genetic Isolation By Distance In Phytophagous Insects, Merrill A. Peterson
Biology Faculty and Staff Publications
To determine the effects of dispersal ability and diet breadth on population-genetic structure, we reviewed the allozyme literature and estimated genetic isolation by distance (IBD) for 43 species/host races of phytophagous insects. Subsequently, we tested two opposing hypotheses regarding the influence of dispersal ability on IBD: that IBD slopes do not vary with mobility, but that intercepts increase with mobility, and, alternatively, that IBD slopes vary with dispersal ability. We found that from tens of kilometers to more than 1,000 km, IBD is weak in sedentary and highly mobile species but pronounced in moderately mobile species. We attribute the weak …
Genetic Variation Within And Among Populations Of Florida Burrowing Owls (Athene Cunicularia Floridana), Wendy T. Denton
Genetic Variation Within And Among Populations Of Florida Burrowing Owls (Athene Cunicularia Floridana), Wendy T. Denton
Legacy ETDs
This study employed DNA Polymerase Chain Reaction (PGR) and Single-Stranded Conformation Polymorphisms (SSCP) on a mitochondrial control region target to assess population structure and possible gene flow in the Florida Burrowing Owl (Athene cunicularia floridana), a Florida Species of Special Concern. Although widespread in Florida, Burrowing Owls occur at low densities in semi-isolated populations that are susceptible to extirpation from human development and the demographic consequences of small population size. To better manage these populations, there is a need for data on the population genetic structure of the Florida Burrowing Owl. Therefore, I acquired DNA from Burrowing Owls …