n African Entomology - Malaria vector studies in two ecological zones in southern Ghana

Volume 9, Issue 1
  • ISSN : 1021-3589



A two-year longitudinal malaria vector study was carried out in two communities, Dodowa and Prampram, located in the coastal forest and coastal savannah zones, respectively, of the Dangme West district of Ghana. Giles was most prevalent in both study areas, followed by Giles in Dodowa and Theobald in Prampram. occurred in sympatry with Theobald in Prampram. Small numbers of Theobald, Edwards, Laveran, Evans and Evans were collected in Dodowa and their role in transmission was negligible. and were found to be the major human-biting species in Dodowa, while and were the most common biting mosquitoes in Prampram. The overall biting rate of the anophelines at Dodowa was twice that at Prampram. and were identified as the main vectors of malaria by salivary gland dissections. Overall mean infectivity rate of both species was approximately 2.5 times higher at Dodowa than at Prampram. was not found to be infected with parasites. The intensity of malaria transmission at Dodowa, the coastal forest area, was about six times higher than Prampram, the coastal savanna area. Some aspects of control strategies are discussed.

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