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Vegetation and environmental conditions in the Doñana Natural Park coastal area (SW Iberia) at the beginning of the last glacial cycle
Authors:César Morales-Molino  José María Postigo-Mijarra  Cari Zazo
Institution:
  • a Dpto. de Silvopascicultura, E.T.S.I. Montes, Universidad Politécnica de Madrid, Ciudad Universitaria s/n, 28040, Madrid, Spain
  • b Dpto. de Biología (Botánica), Facultad de Ciencias, Universidad Autónoma de Madrid, 28049, Cantoblanco, Madrid, Spain
  • c Dpto. de Geología, Museo Nacional de Ciencias Naturales, C.S.I.C., c/ José Gutiérrez Abascal no. 2, 28006-Madrid, Spain
  • Abstract:Detailed reconstructions of the vegetation of Iberia during the last glacial inception are rare due to the limited number of terrestrial sites recording this period. Active retreat of El Asperillo cliff, located on the Atlantic coast of southwestern Iberia, has exposed a fossil organic level dating back to one of the early stades of the last glacial cycle. Pollen and macrofossil analyses from this site show that the Doñana area was covered mainly by steppic vegetation; temperate trees survived the coldest periods, albeit in reduced numbers. Mediterranean taxa are extremely reduced, in contrast with other dry areas of southern Iberia over this time span. This vegetation suggests cold and arid climatic conditions, in accordance with paleoclimatic reconstructions based on several Atlantic marine cores.
    Keywords:Late Pleistocene  Biogeography  Myrica  Pollen  Coastal geomorphology  Cold stage  Fossil wood  Macrofossil
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