University de Queensland (Australia). At the Spatial Ecology Lab, supervised by Dr. Hugh Possingham. Funded by the Catalan Government. January - May 2009

University of Southampton (UK). At the Civil Engineering and the Environment School, supervised by Dr. Patrick Osborne. April - May 2008

Alpine Ecology Lab LECA-CNRS (France). Supervised by Dr. Wilfried Thuiller, within the framework of the international research group GDRE 'Mediterranean and Mountain Systems in a Changing World'. November - December 2006