Mediterranean ecosystems under threat: impact of recurrent extreme drought events and shrub invasion on savannah-type cork oak forests in Portugal

Simon Haberstroh1,2, R Lobo-do-Vale2, Christiane Werner1, Maren Dubbert3, Joaquim G Pinto4, Matthias Cuntz5, Miguel N Bugalho6 and Maria C Caldeira2, (1)University of Freiburg, Freiburg, Germany, (2)University of Lisbon, Forest Research Centre, School of Agriculture, Lisbon, Portugal, (3)University of Freiburg, Ecosystem Physiology, Freiburg, Germany, (4)Karlsruhe Institute of Technology (KIT), Institute of Meteorology and Climate Research (IMK-TRO), Karlsruhe, Germany, (5)INRA Institut National de la Recherche Agronomique, Nancy, France, (6)University of Lisbon, CEABN, Lisbon, Portugal