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Palaeoecological aspects of the immigration history of some tree taxa during the Holocene to Europe


, : Palaeoecological aspects of the immigration history of some tree taxa during the Holocene to Europe. Journal of Applied Botany 71(1-2): 54-61

The immigration history of Abies, Carpinus, Corylus, and Fraxinus was studied for the Holocene in Europe. The data is presented in maps showing geographical distribution patterns of first traces of relevant taxa which point to the very beginning of immigration into the sites studied. Direction of immigration, refuge areas during the Pleniglacial and time span between first traces and mass-spreading of the taxa were analysed. The ages are given in calibrated 14C-years. The immigration maps cover the time from 13'000 cal. 14C yr. b.p. till today. It becomes evident that there existed strong differences in time and in space regarding the immigration processes of the taxa studied. The maps reconstructed are "overlayering-maps", not "isopollen-maps". This chosen form of visualizing the migration pattern of the taxa studied enabled a discussion based on regional and spatial aspects like direction, ways, time and velocity of immigration, with regard to a palaeoecological interpretation of these processes.

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