This research focuses on the larval ecology of African malaria vectors, a ne3glected area of malaria research. As a result of technological advances in the molecular identification of species in the Anopheles gambiae complex, the use microsatellite markers to study mosquito population genetics, the use of Geographic Information Systems and remote sensing as applied to medical entomology and malaria epidemiology, advances in modeling to predict insect population dynamics, and modern insect control technologies, it is now possible to address important basic questions about larval-stage biology of anopheline mosquitos in Africa. Field studies in Kenya to identify the mechanisms by which environmental factors regulate the dynamics of larval-stage mosquitoes will provide new insights for explaining the spatial and temporal dynamics of adult mosquito populations and patterns of Plasmodium falciparum transmission to humans. There are 3 specific aims: 1) to determine through district-level field studies of Anopheles larval habitats the key environmental determinants regulating the spatial and temporal distributions of malaria vectors and Plasmodium falciparum transmission. 2) to determine through longitudinal village-level field studies the impact of climate on relationships between the dynamics of larval populations of Anopheles, the production of adult mosquitoes, the behavior of adult mosquitoes, and the transmission of plasmodium falciparum malaria to humans and 3) to develop new approaches for the control of larval populations of Anopheles mosquitoes by conducting small-scale pilot control projects that involve local communities are organizers and participants. The outcome of this research will include better methods for mosquito control that can be applied at the community level to fight malaria.

Agency
National Institute of Health (NIH)
Institute
National Institute of Allergy and Infectious Diseases (NIAID)
Type
Research Program--Cooperative Agreements (U19)
Project #
3U19AI045511-02S1
Application #
6442911
Study Section
Special Emphasis Panel (ZAI1)
Project Start
2001-04-01
Project End
2001-08-31
Budget Start
Budget End
Support Year
2
Fiscal Year
2001
Total Cost
$159,181
Indirect Cost
Name
Tulane University
Department
Type
DUNS #
City
New Orleans
State
LA
Country
United States
Zip Code
70118
Mwangangi, Joseph M; Mbogo, Charles M; Orindi, Benedict O et al. (2013) Shifts in malaria vector species composition and transmission dynamics along the Kenyan coast over the past 20 years. Malar J 12:13
Muiruri, Samuel K; Mwangangi, Joseph M; Carlson, John et al. (2013) Effect of predation on Anopheles larvae by five sympatric insect families in coastal Kenya. J Vector Borne Dis 50:45-50
Mireji, Paul O; Keating, Joseph; Hassanali, Ahmed et al. (2010) Expression of metallothionein and alpha-tubulin in heavy metal-tolerant Anopheles gambiae sensu stricto (Diptera: Culicidae). Ecotoxicol Environ Saf 73:46-50
Carlson, John C; Dyer, Lee A; Omlin, Francois X et al. (2009) Diversity cascades and malaria vectors. J Med Entomol 46:460-4
Impoinvil, Daniel E; Keating, Joseph; Mbogo, Charles M et al. (2008) Abundance of immature Anopheles and culicines (Diptera: Culicidae) in different water body types in the urban environment of Malindi, Kenya. J Vector Ecol 33:107-16
Impoinvil, Daniel E; Mbogo, Charles M; Keating, Joseph et al. (2008) The role of unused swimming pools as a habitat for Anopheles immature stages in urban Malindi, Kenya. J Am Mosq Control Assoc 24:457-9
Mireji, Paul O; Keating, Joseph; Hassanali, Ahmed et al. (2008) Heavy metals in mosquito larval habitats in urban Kisumu and Malindi, Kenya, and their impact. Ecotoxicol Environ Saf 70:147-53
Magalhaes, T; Brackney, D E; Beier, J C et al. (2008) Silencing an Anopheles gambiae catalase and sulfhydryl oxidase increases mosquito mortality after a blood meal. Arch Insect Biochem Physiol 68:134-43
Sumba, Leunita A; Ogbunugafor, C Brandon; Deng, Arop L et al. (2008) Regulation of oviposition in Anopheles gambiae s.s.: role of inter- and intra-specific signals. J Chem Ecol 34:1430-6
Impoinvil, Daniel E; Cardenas, Gabriel A; Gihture, John I et al. (2007) Constant temperature and time period effects on Anopheles gambiae egg hatching. J Am Mosq Control Assoc 23:124-30

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