Résumé
WETwin is a research project supported by the European Commission under the Seventh Framework Program. Its overall objective is to enhance the role of wetlands in basin-scale Integrated Water Resources Management (IWRM), with the aim of improving the community service functions while conserving good ecological status. This report presents the initial vulnerability assessment of case study wetlands to global changes conducted under the WETwin project. This includes: i) the development of three global changes scenarios in line with the IPCC SRES scenarios but complemented with recent trends and ideas derived from Millennium Assessment Scenarios; ii) the development of DPSIR (Driving force, Pressure, State, Impact, Response) chains for each case study to identify and explore the major environmental and livelihood problems (impacts) at the study sites; iii) the definition of site-specific storylines to focus on specific research questions and also support the development of regional scenarios; and iv) initial vulnerability assessment for the southern case studies. Results are provided for each of the seven case study sites of the WETwin project in Europe, Africa and South America.