HR: 1340h
AN: H33F-1699 [WITHDRAWN]    [Abstracts]
TI: Malaria transmission in a rice-irrigation area in Mali, West Africa: Review of past work and new findings
AU: * Touré, M B
EM: mtoure@taylor0.biology.ucla.edu
AF: Malaria Research and Training Center, Faculty of Medicine, Pharmacy and Dentistry, Bamako, BP1805, Mali
AU: Diuk-Wasser, M A
EM: maria.diuk@yale.edu
AF: Department of Epidemiology and Public Health, Yale School of Medicine 60 College St., New Haven, CT 06520, United States
AU: Lozano-Fuentes, S
EM: slozano@colostate.edu
AF: Department of Microbiology, Immunology and Pathology, Colorado State University 1692 Campus Delivery, Ft. Collins, CO 80523, United States
AU: Traoré, S
EM: cheick@mrtcbko.org
AF: Malaria Research and Training Center, Faculty of Medicine, Pharmacy and Dentistry, Bamako, BP1805, Mali
AU: Taylor, C E
EM: taylor@biology.ucla.edu
AF: Department of Ecology and Evolutionary Biology, University of California 621 Charles Young Dr. South, Los Angeles, CA 90095, United States
AB: The "Office du Niger" in the Niono District of Mali oversees irrigation from a dam on the Niger River -- the largest irrigation project in Mali. The facility was first built in 1932, and now irrigates more than 55,000 hectares for rice. A large reservoir in the center of the area provides water throughout the year through a water-control system. This water-control system enables a double cropping of rice. Nearly all residents located near the irrigated areas practice rice cultivation from that irrigation during the rainy season: some of them double crop. It has been well- established that malaria transmission occurs throughout the year in the irrigated area with two peaks --- one peak in the rainy season and the second peak corresponding to irrigated cultivation that occurs in the dry season due to double cropping. The Niono area has been the subject of several intensive studies during past years. Among the findings has been that the irrigated villages experience very large numbers of mosquitoes (often in excess of 550 bites per person per night), and neighboring non-irrigated villages experience far fewer bites (ca 70 bites per person per night). Paradoxically, the rates of malaria are very much lower in the irrigated villages than in the non-irrigated ones, in spite of the numbers of mosquitoes. We have been studying villages around Niono for the past 10 years, with the hope of understanding what is responsible for the level of malaria transmission and learning how that understanding can be used to control malaria elsewhere. Our work has involved remote sensing, GIS mapping, and collections and modeling of both adult and immature mosquitoes. Recently we have been conducting social surveys as well. In this talk we review our past work and present new results about spatial patterns of vector behavior within villages situated within the irrigated areas.
UR: http://taylor0.biology.ucla.edu/malaria_publist_from_ross.php
DE: 1800 HYDROLOGY
DE: 1803 Anthropogenic effects (4802, 4902)
DE: 1855 Remote sensing (1640)
DE: 1880 Water management (6334)
SC: Hydrology [H]
MN: 2007 Fall Meeting