SEASONAL FLUCTUATIONS IN POPULATION-DENSITIES OF BULINUS-SENEGALENSIS AND B-TRUNCATUS (PLANORBIDAE) IN TEMPORARY POOLS IN A FOCUS OF SCHISTOSOMA-HAEMATOBIUM IN NIGER – IMPLICATIONS FOR CONTROL

The Institute of Evolutionary Science of Montpellier (ISEM – University of Montpellier, CNRS, IRD, EPHE, CIRAD, INRAP) has been focusing research on biodiversity origins and dynamics and the associated evolutionary mechanisms.