Reedel, 18. oktoobril kell 9.00 peab TLÜ ökoloogia keskuse seminaril (M523) ettekande Sándor Gulyás (University of Szeged, Assistant Professor) teemal "Climate, man environment during the LGM (26-19KA) in Hungary and New Zealand".
Seminari tutvustus: The period of the last glacial cycle is extremely interesting from both the point of climatology as well as ecology. The climate was far from uniform going into sudden jumps of warmings and coolings. Much of Northern Europe north of the line of London-Berlin-Warsaw was covered by ice. The Alps was also fully glaciated. The nadir of the glacial was ca. 20 ka when ice-sheets reached their maximum extent. South of the ice-sheets the tundra and taiga areas of Central Europe were populated by Paleolithic hunters hunting for the main elements of the Pleistocene megafauna. The Carpathian Basin was a periglacial area with the presence of only temporary permafrost. Based on paleoecological information a unique ecotone of woodlands-grasslands evolved as a result of the interplay of various climatic influences. These open parklands and forest steppes harboured coniferous elements and offered refugee for warmth-loving elements during the coldest spells. Reindeer feeding north in the tundra area of Poland and the Czech Republic migrated into the open parklands and woodlands of the Carpathian Basin during the Winter being followed by Gravettian hunters. Temperatures in the summer were 10–14° cooler than today, yet microclimatic endowments and the differential feedback of the two major parts to coolings and warmings provided ideal habitats to numerous cold-resistant and warmth-loving elements. Studying paleoclimatic records of loess in the sudden hemisphere enables us to make comparisons of feedbacks to major climate forcings occurring during the referred periods.
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