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Showing 1 to 20 of 113 for “"Phylogeographic"”.
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A phylogeographic investigation of the mountain chickadee
Mountain Chickadees (Parus gambeli) were collected from mountain ranges of the Great Basin and surrounding areas. Restriction endonuclease digestion of their mitochondrial DNA revealed two highly distinct haplotypes. One of these occurred in the Great Basin and extended eastward into Arizona and …
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Phylogeographic patterns in three South African forest mosses
Lepfodon smithii (Leptodontaceae) and Pterogonium gracile (Leucodontaceae) are widespread and disjunctly distributed moss species, that in South Africa are confined to forest patches believed to be relics of vast forests that existed before the Pleistocene glaciation period. These two species …
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Population genetic and phylogeographic insights into the phyllosomal odyssey
The spatial and temporal scale of genetic connectivity influences ecological and evolutionary processes ranging from metapopulation dynamics to species diversification. The majority of marine species maintain genetic connectivity through pelagic propagules, and propagule duration is hypothesized to …
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Molecular phylogeographic structure within the Perognathus fasciatus species-group
There are four recognized species-group assemblages of silky pocket mice in the genus Perognathus. This study used molecular data to address phylogenetic and biogeographic hypotheses within the Perognathus fasciatus species group, which includes three species: P. fasciatus, P. flavescens, and P. …
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Identifying predictors of evolutionary dispersion with phylogeographic generalised linear models
Discrete phylogeographic models enable the inference of the geographic history of biological organisms along phylogenetic trees. Frequently applied in the context of epidemiological modelling, phylogeographic generalised linear models were developed to allow for the evaluation of multiple …
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Phylogeographic and environmental DNA analysis of the mudpuppy (necturus maculosus maculosus)
… tools allow us to address both of these issues. Phylogeographic analyses allow managers to understand a population’s genetic makeup with respect to other populations, facilitating decisions that preserve local adaptation and evolutionary potential. Environmental DNA analysis complements …
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Phylogeographic analysis reveals strong geographical structuring in the klipspringer, Oreotragus oreotragus
… proper understanding of the genetic variation, phylogeographic and population structure of the species, as well as the genetic validity of the 11 subspecies designations. Mitochondrial control region and cytochrome b sequence data were used to investigate these topics using blood, faecal and …
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Evolution of the African Tigerfish (Genus Hydrocynus) : phylogeographic insights into drainage evolution
… relationships can be reconstructed using phylogeographic methods. In this study, the mitochondrial DNA sequence diversity of the characiform genus, Hydrocynus, which is widespread across tropical Africa, is reconstructed using a phylogenetic framework and divergences are dated using the …
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A Phylogeographic Study of Arenaria ciliata and Arenaria norvegica in Ireland and Europe
… where the consensus of the analysis demonstrates phylogeographic patterns indicative of Pleistocene glacial survival in situ, with evi- dence for cryptic refugia in Ireland, Rum and Svalbard, and multiple colonization events for A. ciliata. In contrast, the phylogeographic patterns obtained for A. …
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Phylogeographic structure in the CFR genus Pauridia revealed by inter-simple sequence repeat amplification
The Cape Floristic Region, South Africa, has high numbers of rare and endemic plants. Many, including Pauridia Harv., are geophytes in the Hypoxidaceae. The two species of Pauridia differ in morphology and range, with P. minuta occupying a wide range across lowland CFR and P. longituba being …
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Elucidating the conservation status of Michigan's red-eared slider (trachemys scripta elegans): A phylogeographic approach
<p>The geographic origin of Michigan’s Trachemys scripta elegans has been a contentious subject since its first description in 1934. At that time two explanations were proposed: 1) populations of T. s. elegans are native to Michigan and naturally expanded their range from Ohio and Indiana; or 2) …
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A seascape genetics approach to exploring the phylogeographic response of marine fishes to late Quaternary climate change
Whether a species will flourish or face extinction under a new climate regime is largely determined by its dispersal ability, its adaptive capacity or some combination of these processes. These processes have also played important roles in the evolutionary histories of species, ultimately shaping …
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Historical refuges and recolonization routes in the Southern Appalachian Mountains, inferred through phylogeographic analysis of the spotted wintergreen (Chimaphila maculata)
… that knowledge gap thorough examination of the phylogeographic history of the understory plant Chimaphila maculata, which is native to the Appalachian Mountains. Three microsatellite loci were developed and used in genetic analyses to assess how genetic diversity varied along a latitudinal …
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Phylogeographic and morphometric studies on the Eurasian pygmy shrew Sorex minutus: insights into its evolutionary history and postglacial colonisation in Europe
… and nuclear DNA markers were used for the phylogeographic analyses, and a geometric morphometrics approach was implemented on mandible and skull samples. There was an evident phylogeographic structure across Eurasia consistent with occurrence of southern glacial refugia, and there were two …
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Phylogeographic structure of the Atlantic pupfish, Cyprinodon variegatus (Cyprinodontidae), along the eastern coast of North America: Evidence from mitochondrial nucleotide sequences
Cyprinodon variegatus is a pupfish that inhabits the Atlantic coast of North America, nearly continuously, from Massachusetts to Belize. This research attempts to resolve the phlylogeography of C. variegatus by investigating the genetic sequence structure of the mitochondrial control region …
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