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Seasonal fluctuations of Culicoides species (Diptera: Ceratopogonidae) in Kenya

Published online by Cambridge University Press:  10 July 2009

Alan R. Walker
Alan R. Walker
Affiliation:
Veterinary Research Laboratory, P.O. Kabete, Kenya
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Abstract

Light-traps were used to collect adult Culicoides from 61 sites throughout Kenya and to sample long-term population fluctuations at six sites. Activity patterns were recorded with a suction trap and larval habitats were sampled with laboratory emergence traps. Culicoides cornutus De Medllon, C. milnei Aust., C. pallidipennis C, I. & M., C. schultzei (End.) gp. and C. zuluensis De Meillon were found widespread and also concentrated at livestock pens. Their seasonal population fluctuations did not correlate clearly with rainfall but all these species persist throughout the year. The activity of C. pallidipennis and C. schultzei gp. extends over the whole night and is inhibited by winds in excess of 3 m/s and stimulated by high temperatures and relative humidity. Larval habitats were mainly in mud mixed with detritus or dung; larvae of C. pallidipennis and C. schultzei gp. were both found in swamp mud but not in dung pats. The significance of these findings is discussed in relation to the epidemiology of bluetongue virus disease of sheep and ephemeral fever virus disease of cattle.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 67 , Issue 2 , June 1977 , pp. 217 - 233
Copyright
Copyright © Cambridge University Press 1977

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References

Davies, F. G.., Shaw, T.. &Ochieng, P.. (1975). Observations on the epidemiology of ephemeral fever in Kenya.— J. Hyg., Camb. 75, 231–235.CrossRefGoogle ScholarPubMed
Davies, F. G.. &Walker, A. R.. (1974a). The distribution in Kenya of bluetongue virus and antibody, and the Culicoides vector.— J. Hyg., Camb. 72, 265–272.CrossRefGoogle ScholarPubMed
Davies, F. G.. &Walker, A. R.. (1974b). The isolation of ephemeral fever virus from cattle and Culicoides midges in Kenya.— Vet. Rec. 95, 63–64.CrossRefGoogle ScholarPubMed
Henning, M. W.. (1956). Animal diseases in South Africa.—3rd edn, 1239 pp. Johannesburg, Central News Agency Ltd.Google Scholar
Kangwagye, T. N.. (1973). Diurnal and nocturnal biting activity of flies (Diptera) in western Uganda.— Bull. ent. Res. 63, 17–19.CrossRefGoogle Scholar
Khamala, C. P. M.. (1971). Ecological distribution of East African Culicoides Latreille (Dipt., Ceratopogonidae) as shown by light traps.— Bull. ent. Res. 60, 549–557.CrossRefGoogle ScholarPubMed
Khamala, C. P. M.. &Kettle, D. S.. (1971). The Culicoides Latreille (Diptera: Ceratopogonidae) of East Africa.— Trans. R. ent. Soc. Lond. 123, 1–95.CrossRefGoogle Scholar
Newton, L. G.. &Wheatley, C. H.. (1970). The occurrence and spread of ephemeral fever of cattle in Queensland.— Aust. vet. J. 46, 561–568.CrossRefGoogle ScholarPubMed
Odetoyinbo, J. A.. (1969). Preliminary investigation on the use of a light-trap for sampling malaria vectors in Gambia.— Bull. Wld Hlth Org. 40, 547–560.Google ScholarPubMed
Pratt, D. J.., Greenway, P. J.. &GWYNNE, M. D.. (1966). A classification of East African rangeland, with an appendix on terminology.— J. appl. Ecol. 3, 369–382.CrossRefGoogle Scholar
Service, M. W.. (1970). A battery-operated light-trap for sampling mosquito populations.— Bull. Wld Hlth Org. 43, 635–641.Google ScholarPubMed
Sudia, W. D.. &Chamberlain, R. W.. (1962). Battery operated light trap, an improved model.— Mosquito News 22, 126–129.Google Scholar
Walker, A. R.. &Boreham, P. F. L.. (1976a). Blood feeding of Culicoides (Diptera, Ceratopogonidae) in Kenya in relation to the epidemiology of bluetongue and ephemeral fever.— Bull. ent. Res. 66, 181–188.CrossRefGoogle Scholar
Walker, A. R.. &Boreham, P. F. L.. (1976b). Saline as a collecting medium for Culicoides in blood feeding and other studies.— Mosquito News 36, 18–20.Google Scholar
Walker, A. R.. &Davies, F. G.. (1971). A preliminary survey of the epidemiology of bluetongue in Kenya.—J. Hyg., Camb. 69, 47–60.CrossRefGoogle ScholarPubMed