Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 27 for “"genetic population structure"”.
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Genetic population structure and dispersal of two North American woodpeckers in ephemeral habitats
… patches. In this research, I used patterns of genetic variation to estimate the dispersal dynamics of black-backed woodpeckers (Picoides arcticus), a fire specialist, and compared these patterns to hairy woodpeckers (Picoides villosus), a generalist. I then examined how frequent colonization of …
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Genetic population structure and dispersal of two North American woodpeckers in ephemeral habitats
… patches. In this research, I used patterns of genetic variation to estimate the dispersal dynamics of black-backed woodpeckers (Picoides arcticus), a fire specialist, and compared these patterns to hairy woodpeckers (Picoides villosus), a generalist. I then examined how frequent colonization of …
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DEVELOPMENT OF FECAL DNA SAMPLING METHODS TO ASSESS GENETIC POPULATION STRUCTURE OF GREATER YELLOWSTONE BISON
… (GTNP) represent two of only three remaining populations of plains bison that have no evidence of hybridization with cattle. Therefore, these bison are an important source for ecological and genetic restoration of wild bison. Little is known regarding genetic population structure and gene flow …
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DEVELOPMENT OF FECAL DNA SAMPLING METHODS TO ASSESS GENETIC POPULATION STRUCTURE OF GREATER YELLOWSTONE BISON
… (GTNP) represent two of only three remaining populations of plains bison that have no evidence of hybridization with cattle. Therefore, these bison are an important source for ecological and genetic restoration of wild bison. Little is known regarding genetic population structure and gene flow …
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GENETIC POPULATION STRUCTURE AND CONSERVATION OF BULL TROUT IN THE EAST FORK BITTERROOT RIVER DRAINAGE, MONTANA
… Service. Understanding and conserving the genetic and life history diversity of bull trout populations across their range is critical as conservation, management, and recovery plans are developed. Numerous studies in different regions have shown that local bull trout populations in close …
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GENETIC POPULATION STRUCTURE AND CONSERVATION OF BULL TROUT IN THE EAST FORK BITTERROOT RIVER DRAINAGE, MONTANA
… Service. Understanding and conserving the genetic and life history diversity of bull trout populations across their range is critical as conservation, management, and recovery plans are developed. Numerous studies in different regions have shown that local bull trout populations in close …
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Genetic Population Structure and Effective Number of Breeders in Systems Across the Range of the Gulf Sturgeon
… the Endangered Species Act. This study uses genetic techniques to determine the effective number of breeders for multiple spawning groups of Gulf sturgeon in river systems across their range to set a baseline for tracking reproductive success of the species. Accompanying genetic information …
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Investigation of small mammal species richness, abundance, and genetic population structure on and around the Eastern Washington University Prairie Restoration Site
… area near a drainage ditch. We conducted STRUCTURE analysis and calculated FIS and FST to determine gene flow occurring between populations of P. maniculatus on and around the EWU Prairie Restoration Site. We found high levels of gene flow occurring between and among all populations. …
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Characterization of the intraspecific variation within the nickel (Ni) hyperaccumulator species Senecio coronatus (Asteraceae): a preliminary analysis of genetic population structure and shoot proteome expression
… accumulator taxa (over 75%), the underlying genetic and molecular basis of Ni accumulation remains unclear. A prominent difficulty in understanding Ni hyperaccumulation has been the severe lack of intraspecific variation in the trait. Hence, the study of a single species exhibiting a …
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Landscape Genetics of the Marbled Salamander (Ambystoma Opacum) at Mammoth Cave National Park
… to maintain in order to prevent loss of genetic diversity, reduce inbreeding depression, and decrease extinction risk in threatened or endangered species. Here I present a landscape genetics study on marbled salamanders (Ambystoma opacum) in highly connected forested habitat at Mammoth …
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Mating Habits, Dispersal and Postglacial Range Expansion of Nigronia Serricornis (Say) (Megaloptera: Corydalidae)
… isolation-by-distance would be evident in the genetic population structure, due to poor dispersal ability. Using sequence data from a 630-base fragment of cytochrome oxidase I (COI), nested clade phylogeographical analysis (NCPA) was performed to determine the patterns of genetic diversity and …
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Conservation Genetics and Mark-Recapture Monitoring of the Rare Pigeon Mountain Salamander (Plethodon petraeus) within a Highly Restricted Range
… at an elevated risk of a significant decline in population numbers and extinction because of the inability to avoid and recover from these impacts. Long-term management plans are critical for conservation of species with small ranges; however, the knowledge required to develop effective plans is …
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The Response of a protandrous species to exploitation, and the implications for management: a case study with patellid limpets
… model was made of three component sub-models; a population fecundity model, a gamete dispersal model, and a fertilisation model. The model makes explicit account of sperm limitation, and is based upon data collected through field and laboratory investigations conducted as part of this …
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Assessing the threat of non-native salmonids to Lahontan cutthroat trout recovery in a subalpine watershed
… reintroduction program. I investigated the genetic population structure and connectivity of naturalized rainbow and brown trout throughout the Glen Alpine Creek watershed including Fallen Leaf Lake in order to assess the threats posed by these non-native fishes. Fin clips were collected from …
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A biogeographic analysis of the species Fragaria vesca using microsatellite markers on a worldwide plant collection
… Another importat reason for assessing the genetic population structure of the F. vesca is its vast distribution and the effect of climate change through the ages, which could shed light on the dispersal route of the species during and after the last glacial maximum. The aims of this study …
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Population Structure of Lethrinus Lentjan (Lethrinidae, Percoidei) Across the South China Sea and the Philippines Is Detected With Lane-Affected RADSeq Data
… varied threats. Patterns of speciation and population structure in the Coral Triangle have been examined to test hypotheses relating to the historical geologic processes that may have influenced this biodiversity phenomenon. This study investigates the genetic population structure of the …
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Conservation genetics of sauger in the upper Missouri River drainage
… interspecific hybridization and describe the genetic population structure of sauger. Two major population groupings of sauger were revealed by principal component analysis. The first consisted of samples from the Missouri and lower Yellowstone River drainages, which showed no evidence for …
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Conservation genetics of sauger in the upper Missouri River drainage
… interspecific hybridization and describe the genetic population structure of sauger. Two major population groupings of sauger were revealed by principal component analysis. The first consisted of samples from the Missouri and lower Yellowstone River drainages, which showed no evidence for …
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Population genetics and conservation of the endemic Mus cypriacus.
… as well as a poor understanding of its genetic population structure. Using the mitochondrial D-loop, single nucleotide polymorphisms and microsatellite data, I investigated the genetic diversity of M. cypriacus, the genetic structure of different M. cypriacus populations and tested for …
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