Discriminative feeding behaviour of Anopheles gambiae s.s. on endemic plants in western Kenya

H. Manda; L. C. Gouagna; E. Nyandat; E. W. Kabiru; R. R. Jackson; W. A. Foster; J. I. Githure; J. C. Beier; A. Hassanali

doi:10.1111/j.1365-2915.2007.00672.x

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Discriminative feeding behaviour of Anopheles gambiae s.s. on endemic plants in western Kenya

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Discriminative feeding behaviour of Anopheles gambiae s.s. on endemic plants in western Kenya

H. Manda, L. C. Gouagna, E. Nyandat, E. W. Kabiru, R. R. Jackson, W. A. Foster, J. I. Githure, J. C. Beier et A. Hassanali

Medical and veterinary entomology, Vol.21(1), pp.103-111

03/2007

DOI: https://doi.org/10.1111/j.1365-2915.2007.00672.x

PMID: 17373953

Résumé

Anopheles gambiae Giles s.s. (Diptera: Culicidae) is known to feed on plant sugars, but this is the first experimental study to consider whether it discriminates between plant species. Thirteen perennial plant species were selected on the basis of their local availability within the vicinity of human dwellings and larval habitats of An. gambiae s.s. in western Kenya. Groups of 100 or 200 mosquitoes were released into cages either with a cutting of one plant type at a time (single-plant assay) or with cuttings of all 13 plants simultaneously (choice assay), respectively, and left overnight. In the choice assay, direct observations of the percentages of mosquitoes perching or feeding on each plant were recorded over four 1-h periods each night. For both types of assay, mosquitoes were recaptured and the percentage that had fed on plants was assessed by testing them individually for the presence of fructose. To identify which plants the choice-assay mosquitoes had fed on, gas chromatography (GC) profiles of samples of mosquito homogenates were compared with GC profiles of extracts from relevant parts of each plant. Four of the plants that were observed to have been fed on most frequently in the choice assay (Parthenium hysterophorus L., Tecoma stans L., Ricinus communis L., and Senna didymobotrya Fresen) were also shown to have been ingested most often by mosquitoes in both types of assay, suggesting that An. gambiae is differentially responsive to this range of plants, regardless of whether the plants were presented singly or mixed together. Significantly more females than males fed on plants, with the exception of P. hysterophorus L., one of the plants most frequently fed on. For most plant species (ten of 13), GC profiles indicated that An. gambiae obtained sugars primarily from flowers. The exceptions were P. hysterophorus L., Lantana camara L. and R. communis L., on which An. gambiae fed more often from leaves and stems than from flowers.

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Titre: Discriminative feeding behaviour of Anopheles gambiae s.s. on endemic plants in western Kenya
Créateurs - sans rôle: H. Manda - International Centre of Insect Physiology and Ecology (ICIPE), Nairobi, Kenya Department of Biological Sciences, Kenyatta University, Nairobi, Kenya Institut de Recherche pour le Développement (IRD) Ouagadougou, Burkina Faso School of Biological Sciences, University of Canterbury, Christchurch, New Zealand Department of Entomology, Ohio State University, Columbus, Ohio, U.S.A. Department of Epidemiology and Public Health, University of Miami, Miami, Florida, U.S.A
L. C. Gouagna - International Centre of Insect Physiology and Ecology (ICIPE), Nairobi, Kenya Department of Biological Sciences, Kenyatta University, Nairobi, Kenya Institut de Recherche pour le Développement (IRD) Ouagadougou, Burkina Faso School of Biological Sciences, University of Canterbury, Christchurch, New Zealand Department of Entomology, Ohio State University, Columbus, Ohio, U.S.A. Department of Epidemiology and Public Health, University of Miami, Miami, Florida, U.S.A
E. Nyandat - International Centre of Insect Physiology and Ecology (ICIPE), Nairobi, Kenya Department of Biological Sciences, Kenyatta University, Nairobi, Kenya Institut de Recherche pour le Développement (IRD) Ouagadougou, Burkina Faso School of Biological Sciences, University of Canterbury, Christchurch, New Zealand Department of Entomology, Ohio State University, Columbus, Ohio, U.S.A. Department of Epidemiology and Public Health, University of Miami, Miami, Florida, U.S.A
E. W. Kabiru - International Centre of Insect Physiology and Ecology (ICIPE), Nairobi, Kenya Department of Biological Sciences, Kenyatta University, Nairobi, Kenya Institut de Recherche pour le Développement (IRD) Ouagadougou, Burkina Faso School of Biological Sciences, University of Canterbury, Christchurch, New Zealand Department of Entomology, Ohio State University, Columbus, Ohio, U.S.A. Department of Epidemiology and Public Health, University of Miami, Miami, Florida, U.S.A
R. R. Jackson - International Centre of Insect Physiology and Ecology (ICIPE), Nairobi, Kenya Department of Biological Sciences, Kenyatta University, Nairobi, Kenya Institut de Recherche pour le Développement (IRD) Ouagadougou, Burkina Faso School of Biological Sciences, University of Canterbury, Christchurch, New Zealand Department of Entomology, Ohio State University, Columbus, Ohio, U.S.A. Department of Epidemiology and Public Health, University of Miami, Miami, Florida, U.S.A
W. A. Foster - International Centre of Insect Physiology and Ecology (ICIPE), Nairobi, Kenya Department of Biological Sciences, Kenyatta University, Nairobi, Kenya Institut de Recherche pour le Développement (IRD) Ouagadougou, Burkina Faso School of Biological Sciences, University of Canterbury, Christchurch, New Zealand Department of Entomology, Ohio State University, Columbus, Ohio, U.S.A. Department of Epidemiology and Public Health, University of Miami, Miami, Florida, U.S.A
J. I. Githure - International Centre of Insect Physiology and Ecology (ICIPE), Nairobi, Kenya Department of Biological Sciences, Kenyatta University, Nairobi, Kenya Institut de Recherche pour le Développement (IRD) Ouagadougou, Burkina Faso School of Biological Sciences, University of Canterbury, Christchurch, New Zealand Department of Entomology, Ohio State University, Columbus, Ohio, U.S.A. Department of Epidemiology and Public Health, University of Miami, Miami, Florida, U.S.A
J. C. Beier - International Centre of Insect Physiology and Ecology (ICIPE), Nairobi, Kenya Department of Biological Sciences, Kenyatta University, Nairobi, Kenya Institut de Recherche pour le Développement (IRD) Ouagadougou, Burkina Faso School of Biological Sciences, University of Canterbury, Christchurch, New Zealand Department of Entomology, Ohio State University, Columbus, Ohio, U.S.A. Department of Epidemiology and Public Health, University of Miami, Miami, Florida, U.S.A
A. Hassanali - International Centre of Insect Physiology and Ecology (ICIPE), Nairobi, Kenya Department of Biological Sciences, Kenyatta University, Nairobi, Kenya Institut de Recherche pour le Développement (IRD) Ouagadougou, Burkina Faso School of Biological Sciences, University of Canterbury, Christchurch, New Zealand Department of Entomology, Ohio State University, Columbus, Ohio, U.S.A. Department of Epidemiology and Public Health, University of Miami, Miami, Florida, U.S.A
Détails de publication: Medical and veterinary entomology, Vol.21(1), pp.103-111
Nombre de pages: 9
Identifiants: 99147925009311
Unité académique: Maladies Infectieuses et Vecteurs : Ecologie, Génétique, Evolution et Contrôle - MIVEGEC
Langue: English
Type de ressource: Journal article