Situated between latitude 4° 00 to 4° 8 N and longitude 9° 30 to 9° 49 E, Douala the economic capital of Cameroun has since four decades witness an unprecedented demographic pressure. Like other towns of the developing countries, the construction of social facilities does not follow the demographic increase. Since 1990, the need of land for settlement and the economic crisis that stroke our country have favored the invasion and occupation of the Youpwe mangrove, considered for a long time as camp for fishermen. The development of habitat, the carry out of activities like fuel wood exploitation and sand extraction, stands to be the majors’ factors for mangrove regression in Youpwe. The social pressure that is been manifested by practice and thought of actors with divergent logics, has contributed in a significant manner to the transformation of mangrove space. The analysis of aerial photographs permitted to identify the different phases of regression of the Youpwe mangrove since 1978. The unceasing increased pressure on the resources at Youpwe been manifested by the reduction and extinction of numerous flora, halieutic and fauna species has generated malfunctioning of mangrove ecosystem causing hydro-morphologic and socio – economic repercussions. Demographic and spatial projections show that the Youpwe mangrove, despite many projects of conservation and protection undertook should be more subjected to future intense human pressure in the next three decades.
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