Vegetation dynamics in southern France during the last 30 ky BP in the light of marine palynology |
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| Institution: | 1. UMR CNRS 5125 Laboratoire PaléoEnvironnements et PaléobioSphère, Université Claude Bernard Lyon 1, Campus La Doua, Bâtiment Géode, 2 rue Dubois, 69622 Villeurbanne Cédex, France;2. Department of Earth Sciences, Sun Yat-sen University, 135 Xin Gang Xi Lu, 510275 Guangzhou, China;3. UMR CNRS 6538 Domaines océaniques, Institut Universitaire Européen de la Mer, 1 Place Copernic, 29280 Plouzané, France;4. Laboratoire Environnements Sédimentaires, Géosciences Marines, IFREMER, Centre de Brest, BP 70, 29280 Plouzané, France;1. Archaeobiology Group, Institute of History, Spanish National Research Council (CCHS-CSIC), Albasanz 26-28, 28037 Madrid, Spain;2. University of the Basque Country (UPV/EHU). Francisco Tomás y Valiente, s/n. Apdo. 2111, 01006, Vitoria-Gasteiz, Spain;1. Département de Préhistoire, UMR 7194, Les Hominidés au Quaternaire, Muséum National d’Histoire Naturelle, Paris, France;2. Institut Català de Paleoecologia Humana i Evolució Social, C/ Marcel·lí Domingo s/n Campus Sescelades URV (Edifici W3) 43007-Tarragona Universitat Rovira i Virgili, Av. Catalunya, 35, 43002 Tarragona, Spain;3. UMR 7209, Département d''écologie et gestion de la biodiversité, UMR 7209 Archéozoologie, archéobotanique, Muséum National d’Histoire Naturelle, Paris;4. Musée Requien, Avignon, France;5. Laboratoire de Préhistoire du Lazaret, Nice, France;6. CERP, Tautavel, France;7. Département des Sciences de la Terre, Université de Lyon I, France;8. Museum of Archaeology and Anthropology, University of Pennsylvania, 3260 South Street, Philadelphia, PA 19104-6324 USA;9. Archaeology Centre University of Toronto, 19 Russell Street, Toronto, ON M5S 2S2 Canada;1. Dipartimento di Scienze Fisiche, della Terra e dell''Ambiente, U.R. Preistoria e Antropologia, Università degli Studi di Siena, Via Laterina 8, 53100 Siena, Italy;2. Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany;3. Department of Cultural Heritage, University of Bologna, Via degli Ariani 1, Ravenna 48121, Italy;4. Oxford Radiocarbon Accelerator Unit, Research Laboratory for Archaeology and the History of Art, University of Oxford, Oxford OX1 3QY, United Kingdom;1. Royal Belgian Institute of Natural Sciences, Earth and Life History Operational Division, Vautier Street, 29, B-1000 Brussels, Belgium;2. Taras Shevshenko National University, Glushkova prospect 2a, 03127 Kiev, Ukraine;3. Service public de Wallonie, Direction de l''Archéologie, Rue des Brigades d''Irlande, 1, B-5100 Jambes, Belgium |
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| Abstract: | The composition of the glacial vegetation of southern French plains has been a matter of debate for several decades. Vegetation is considered as steppic according to French and Spanish lacustrine pollen records whereas cave deposits suggest the presence of mesothermophilous trees through the Last Glacial Maximum. In our paper, we display new palynological records from marine sediments of the Gulf of Lions. They indicate the presence of Abies, Picea and deciduous Quercus in the Gulf of Lions, certainly located in the drainage basins of the Pyreneo-Languedocian rivers. These populations that were sensitive to short climatic events during Marine Isotopic Stage 2 could have been linked to northeastern Spanish and southeastern French relicts already evidenced by phylogenetic data. These trees were absent from the Rhone drainage basin during the deglaciation and certainly also disappeared from the Pyreneo-Languedocian drainage basins from ca 17 to 15 ky cal BP. Finally, the Last Glacial Maximum does not appear as stable, cold and dry as previously thought. |
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