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20,000 14C Years of Climate and Environmental Change in Europe : A Coleopteran-based Reconstruction with an Anthropocenic FocusEnayat, Misha January 2015 (has links)
This thesis builds on the work of previous coleopteran-based climatic reconstructions to recreate the environment and climate of the last 20,000 14C years of northwest Europe using the data and methods available within the Bugs Coleopteran Ecology Package, and aims to assess the ability of the BugsCEP results to provide information regarding events and anthropogenic changes on environment during the Anthropocene. Samples and data from 134 sites across northwest Europe and the British Isles were included in this study. The Mutual Climatic Range method and the BugStats module based on habitat code classifications were used to create the climatic and environmental reconstructions respectively, the results of which are provided in eight isotherm maps for 14.5-9 14C years BP and 2 EcoFigure graphs for 20,000 14C to present. While the results of some isotherm maps align with the changes described in previous studies, other climate trends are muted within these results. Likewise, some previously recognized environmental shifts in Europe are visible, whereas other major events are not distinguishable within the environmental record. An assessment of the environmental reconstruction results finds that though there is not sufficient material to support any proposed Anthropocene start dates, effects of anthropogenic influence upon the environment may be visible starting within the last 2,000 14C years; the results also show some support for the Vera Hypothesis.
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Palaeoentomological reconstruction of the environment during the Late Quaternary : A comparison between living species in Europe and regionally extinct in British IslesKourela, Genovefa January 2018 (has links)
During the Late Quaternary, abrupt climate and cultural changes took place and made alternations to the past landscape. Climatic phenomena such as expand of ice masses,sea level rise, high and low temperatures, migration of humans, decline and increase of forest areas and more changes were the reason of changing the biodiversity of species and the formation of the land. Here cartographic maps with the use of GIS will be presented from reconstructions of the environment during the Late Quaternary, which then will be interpreted from coleopteran fossils for the whole of Europe. Furthermore, living and extinct species will be compared, in which the focus of the extinction will be in the British Isles. Each period will show a different abundance of species, the regional disappearance of the species will be depicted by the abrupt changes in the landscape during the past. Anthropogenic and natural factors will be discussed and be compared with the habitats of the species.
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