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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Feeding frequency and survival of Anopheles gambiae in a rice-growing area in Ghana
Medical and Veterinary Entomology, Volume 26, No. 3, Year 2012
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Description
Mortality rates, determined by dissection, of predominantly M form female Anopheles gambiae (Diptera: Culicidae) were estimated. Mosquitoes were collected in tent traps and light traps in an irrigation project village in Ghana in June and July 2010, when much of the area was flooded. Both M and S form larvae were collected from rice fields (74 of 80 specimens were M form). Adults were collected in equal proportions from the two traps (90 of 107 specimens from the light trap and 106 of 116 specimens from the tent trap were M form). During the study, collection numbers rose from 105 to 972 per night. A total of 1787 of the 15 431 An. gambiae collected were dissected. Of these, 953 (53%) were found to have taken their first bloodmeal, either as virgins or following mating. The age profiles of mosquitoes collected alive and dead, respectively, were similar. Eighteen of 2933 (0.61 ± 0.49%) specimens were found to be positive for sporozoites in an enzyme-linked immunosorbent assay (ELISA). Lagged cross correlations among the different age groups implied that the mosquitoes fed on days 2 and 4 following emergence prior to oviposition and every 2.65 ± 0.17 days thereafter. The best model to describe the observed population patterns implied a daily mortality of 84%. The results are discussed in relation to possible mosquito control measures for the village. © 2011 The Authors. Medical and Veterinary Entomology © 2011 The Royal Entomological Society.
Authors & Co-Authors
Charlwood, J. D.
Unknown Affiliation
Tomás, Elsa V.E.
Unknown Affiliation
Egyir-Yawson, Alexander
Ghana, Accra
Csir - Institute for Scientific and Technological Information
Kampango, Ayubo A.
Unknown Affiliation
Pitts, R. Jason
United States, Nashville
Vanderbilt University
Statistics
Citations: 16
Authors: 5
Affiliations: 2
Identifiers
Doi:
10.1111/j.1365-2915.2011.00987.x
ISSN:
0269283X
e-ISSN:
13652915
Study Design
Cross Sectional Study
Study Locations
Ghana
Participants Gender
Female