population genetics and dynamics at short spatial scale in bulinus truncatus, the intermediate host of schistosoma haematobium, in morocco. | the population biology of the schistosome-vector snail bulinus truncatus was studied in an irrigation system near marrakech, morocco using both genetic and demographic approaches. the population genetic survey was conducted in 4 sites, 2 sites being sampled on 2 separate occasions. individuals were genotyped at 6 microsatellite loci. no variability was found at 4 loci, and the 2 other loci had less than 4 alleles. the differentiation, both spatial and temporal, among populations was extremely we ... | 2002 | 12403323 |