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.
Results
Showing 1 to 14 of 14 for “"glacial refugia"”.
-
Tracking thicket through space and time : insights into the evolutionary history of the Albany Subtropical Thicket from comparative phylogeography and distribution modelling
… but climatic changes associated with Pleistocene glacial cycles may have profoundly affected the distributions, gene flows, and demographies of species. The glacial refugia hypothesis predicts that AST retracted into fragmented refugia during glacial cycles. The evolutionarily discrete drainage …
-
The Population Genetics Of The Wood Frog, Rana Sylvatica, Across Its Geographic Range
… investigated as was the possible locations of glacial refugia for this species. DNA microsatellites were used as the genetic marker. This study found significant genetic differentiation across the geographic range of Rana sylvatica that increased with geographic distance. In addition three …
-
Phylogeographic and morphometric studies on the Eurasian pygmy shrew Sorex minutus: insights into its evolutionary history and postglacial colonisation in Europe
… Eurasia consistent with occurrence of southern glacial refugia, and there were two distinct lineages in Northern-Central Europe and near the Pyrenees supporting the existence of northern glacial refugia through the characteristics of their distribution and population expansion. Haplotypes from …
-
Genetic and ecological investigations of European populations of the pool frog, Rana lessonae (Camerano, 1882) with allied, osteological and species identification methods
… data were consistent with an unexpected post-glacial colonisation route, in which the northern clade derived from migration out of Italy, via Hungary and Poland, but cryptic glacial refugia in Eastern Europe are an alternative explanation. Similarity indices suggested a complex origin for the …
-
The phylogeography of North American chestnuts and chinquapins (Castanea Mill., Fagaceae)
… current distributions with locations of possible glacial refugia. Although the precise genetic basis of the confounding morphology in southeastern populations of North American Castanea is still uncertain, an intricate biogeographical history combined with the tendency of taxa within this genus to …
-
Phylogeography of eastern leatherwood (Dirca palustris L.) resolved by chloroplast sequencing and microsatellite genotyping
… of eastern North America persisted in southern glacial refugia near the Gulf Coast, after which many dispersed nearly 2000 km to contemporary northern range limits. The rates of migration necessary to account for present distributions exceed those suggested by contemporary observations of seed …
-
Range-wide Distribution and Genetic Structure of Acroneuria frisoni Stark and Brown, 1991 (Plecoptera; Perlidae): Tools for Reintroduction to Central Illinois
… I (COI) was used to determine the Pleistocene glacial refugia, northward recolonization routes and the role of contemporary and ancient drainages in shaping A. frisoni genetic structure. Data suggest that there are at least three refugia throughout the range including the Interior Highlands of …
-
New approaches to understanding functional traits and butterfly responses to environmental changes in Europe
… of a sample of the European butterflies over a glacial-interglacial cycle scale was examined. Traits underlying mobility contribute to population structuring observed between putative glacial refugia and explain this better than past climate and landscape resistance alone. Comprehensive …
-
The winds of change: A study of post-glacial dispersal in pacific-northwest conifers
… during the last glaciation and the present interglacial period. Such ""climate refugia"" allow pockets of diversity to persist within a regional climate that is otherwise inhospitable for those species. It is important to understand climate refugia, as they are potential targets for conservation. …
-
Advancements in environmental statistics concerning multiple data sources
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-12-04 without embargo terms
-
Species response to shifting and variable climates
… plant taxa persisted through the Last Glacial Maximum (LGM) in Alaska and adjacent Canada. In part, my dissertation investigated the spatial patterns of glacial persistence and postglacial colonization of an alder (Alnus) species complex (n = 3 taxa) from this vast region. Using …