| biological control of the snail intermediate hosts of schistosoma mansoni in martinique, french west indies. | in martinique water-cress beds constituted the last transmission sites for schistosomiasis. the competitor snail, melanoides tuberculata, was introduced at the beginning of 1983 to a group of water-cress beds and eliminated the snail hosts, biomphalaria glabrata and b. straminea, in less than two years. following this first success, m. tuberculata was introduced to the other groups of beds which were inventoried at the beginning of the eighties. at the present time, b. glabrata and b. straminea ... | 1992 | 1519033 |
| biological control of biomphalaria glabrata and b. straminea by the competitor snail thiara tuberculata in a transmission site of schistosomiasis in martinique, french west indies. | in martinique, intestinal schistosomiasis was discovered at the beginning of this century. the intermediate host snail, biomphalaria glabrata, was considered in the past as a common species in the different habitats of the island, but during the last decade it has been found only in water-cress beds. several of these water-cress cultures contained mixed populations of b. glabrata and b. straminea. moreover, these habitats also constituted transmission sites for schistosoma mansoni infection. in ... | 1989 | 2513787 |
| [control of intestinal schistosomiasis in martinique island]. | the presence of schistosomiasis mansoni is known in martinique since the beginning of the xxth century. a general survey of the distribution of the disease was carried out in 1977 and showed a mean prevalence of 12% (coprology and serology taken together) in the whole of the island. following this survey, an integrated control programme associating sanitary education, detection and treatment of patients and improved sanitation, was developed. in addition, a biological control programme against t ... | 1997 | 9587606 |
| biological control of the snail hosts of schistosomiasis in areas of low transmission: the example of the caribbean area. | the biological control of schistosomiasis has already proven its efficiency in several habitats in the caribbean area. two main types of biological control agents, either trematode parasites or competitor snails have been studied and tested against the snail hosts of schistosomiasis in this region. the first one, ribeiroia guadeloupensis, a trematode sterilizing biomphalaria glabrata was successfully tested in a guadeloupean pond housing a natural population of b. glabrata. the second agent invo ... | 2000 | 10996120 |
| invading freshwater snails and biological control in martinique island, french west indies. | eight alien freshwater snail species were introduced into martinique island during the last 50 years. the introduced snails include four planorbids (biomphalaria straminea, helisoma duryi, amerianna carinata and gyraulus sp.), three thiarids (melanoides tuberculata, m. amabilis and tarebia granifera) and one ampullarid (marisa cornuarietis). four of these species rapidly colonized the whole martinican hydrographic system whereas the other four remained restricted to some particular sites. the in ... | 2001 | 11586428 |
| hybridization and invasiveness in the freshwater snail melanoides tuberculata: hybrid vigour is more important than increase in genetic variance. | many invasive taxa are hybrids, but how hybridization boosts the invasive process remains poorly known. we address this question in the clonal freshwater snail melanoides tuberculata from martinique, using three parental and two hybrid lines. we combine an extensive field survey (1990-2003) and a quantitative genetic experiment to show that hybrid lines have outcompeted their parents in natural habitats, and that this increased invasiveness co-occurred with pronounced shifts in life-history trai ... | 2005 | 15842482 |