Los servicios de los ecosistemas de la Reserva de Biosfera Ciénaga Grande de Santa Marta

The Biosphere Reserve Ciénaga Grande of Santa Marta (RBCGSM) is a complex coastal and marine wetland system with a strong functioning interdependency. These ecosystems interact with several local communities through the supply of ecosystem services. The aim of this paper was to identify ecosystem services of RBCGSM that are perceived by different actors. We carried out semi-structured interviews in order to analyze the social perception, the trends of changes and a social valuation of ecosystem services. We obtained 777 responses which were typified in 34 categories, from which 55% were provisioning services, 43% cultural services, and 2% were regulating services. The supply of approximately half of them has decreased (43,9%) or disappeared (4,6%) and three-quarters of perceived services were considered as essential (46,8%) or very important (28,5%) for interviewees. The results provide a base of knowledge required for the analysis of the implications of ecosystem services use, as well as for the proposal and implementation of management guidelines aimed at maintaining a sustainable flow of ecosystem services essential for human wellbeing.