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November 2001The River Congo and its tributaries drain a catchment area of 3.
November 2001How to explain the maintenance of high tree species diversity in tropical rain forests ? A study conducted by IRD researchers in French Guiana as part of the SOFT programme (1) provides the first-ever validation, in this ecosystem, of the intermediate disturbance hypothesis.
October 2001New Caledonia is bestowed with a remarkably rich and distinctive range of palm species.
Trapped in pre-adult limbo ? Changing trends in social integration of young people in three african capitals
September 2001Like their counterparts in Europe, are young people of African cities entering adult life later than in previous times? It is often stressed how difficult it is for young people in Africa to integrate into society.
July 2001The construction in Tunisia of hundreds of small hill-top catchment reservoirs in the 1990s was aimed partly at the management of runoff to avoid the silting up of the large-scale dams and partly to encourage rural populations to stay settled around these water points.