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Interactions between immature Aedes africanus (Theobald) and larvae of two predatory species of Toxorhynchites (Diptera: Culicidae) in Zika Forest, Uganda

Published online by Cambridge University Press:  10 July 2009

S. D. K. Sempala
S. D. K. Sempala
Affiliation:
Uganda Virus Research Institute, P.O. Box 49, Entebbe, Uganda
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Abstract

Studies conducted in Zika Forest, Uganda, on the breeding interactions between Aedes africanus (Theo.) and two mosquito predators, Toxorhynchites brevipalpis conradti Grünb. and T. kaimosi (van Som.), revealed a significant reduction in the numbers of A. africanus larvae and pupae in tree holes that were also inhabited by the predator larvae. There was a tendency for seasonal peaks in numbers of A. africanus to be followed two months later by peaks in Toxorhynchites spp. Cannibalism appeared to play an important role in the regulation of the population size of the two species of Toxorhynchites. The implications of these results in relation to the possible use of Toxorhynchites mosquitoes for biological control of A. africanus and other mosquitoes breeding in tree holes are discussed.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 73 , Issue 1 , March 1983 , pp. 19 - 24
Copyright
Copyright © Cambridge University Press 1983

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References

Corbet, P. S. & Griffiths, A. (1963). Observations on the aquatic stages of two species of Toxorhynchites (Diptera: Culicidae) in Uganda. —Proc. R. ent. Soc. Lond.(A) 38, 125–135.Google Scholar
Holling, C. S.. (1961). Principles of insect predation. — A. Rev. Ent. 6, 163–182.CrossRefGoogle Scholar
Lounibos, L. P.. (1979). Temporal and spatial distribution, growth and predatory behaviour of Toxorhynchites brevipalpis (Diptera: Culicidae) on the Kenya coast. —J. Anim. Ecol. 48, 213–236.CrossRefGoogle Scholar
Muspratt, J.(1951). The bionomics of an African Megarhinus (Dipt.:Culicidae) and its possible use in biological control. —Bull. ent. Res. 42, 355–370.CrossRefGoogle Scholar
Nicholson, A. J.. (1954). An outline of the dynamics of animal populations. —Aust. J. Zool. 2, 9–65.CrossRefGoogle Scholar
Nicholson, A. J. & Bailey, V. A.. (1935).The balance of animal populations. —Part I. —Proc. zool. Soc. Lond. 1935, 551–598.CrossRefGoogle Scholar
Sempala, S. D. K.. (1982). Estimation of the mortality of the immature stages of Aedes (Stegomyia) africanus Theobald in a tropical forest in Uganda. —Insect Sci. Applic. 2, 233–244.Google Scholar
Sempala, S. D. K.. (1983). Seasonal population dynamics of the immature stages of Aedes africanus (Theobald) (Diptera:Culicidae) in Zika Forest, Uganda. — Bull. ent. Res. 73, 11–18.CrossRefGoogle Scholar
Trpis, M. (1972). Development and predatory behaviour of Toxorhynchites brevipalpis (Diptera: Culicidae) in relation to temperature. —Environ. Entomol. 1, 537–546.CrossRefGoogle Scholar
Trpis, M. (1973). Interaction between the predator Toxorhynchites brevipalpis and its prey Aedes aegypti. —Bull. Wld Hlth Org. 49, 359–365.Google ScholarPubMed