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Factors affecting seasonal dispersal of the tsetse flies Glossina pallidipes and G. longipennis (Diptera: Glossinidae) at Nguruman, south-west Kenya

Published online by Cambridge University Press:  10 July 2009

R. Brightwell ,
R.D. Dransfield  and
B.G. Williams
R. Brightwell*
Affiliation:
International Centre for Insect Physiology and Ecology, Nairobi, KE
R.D. Dransfield
Affiliation:
International Centre for Insect Physiology and Ecology, Nairobi, KE
B.G. Williams
Affiliation:
International Centre for Insect Physiology and Ecology, Nairobi, KE
*
Mr R. Brightwell, c/o Ms S. MacMillan, ILRAD, Box 30709, Nairobi, KE.
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Abstract

Seasonal changes in the distribution of the tsetse flies, Glossina pallidipes Austen and G. longipennis Corti, along a transect from riverine thickets out into open plains were monitored along with tsetse density, climatic factors, vegetation and host abundance. Dispersal of tsetse into open country was quantified using the mean spread. During and after the rains both species extended their distribution out into open country up to at least 3.5 km from riverine thicket areas. The mean spread of G. longipennis was greater than that of G. pallidipes. The spread of males and females was very similar, as was the spread of different age categories of parous females, but nulliparous flies and females carrying second instar larvae were under-represented in samples from open areas. This seasonal dispersal can be accounted for by random diffusion with an average root mean square displacement of about 175 m per day. Observed degrees of spread were best correlated with humidity conditions prior to sampling, but multiple regression models suggested that host abundance, vegetation as measured by Normalised Difference Vegetation Indices (NDVI), and, in the case of G. longipennis, tsetse density, were also factors in determining the degree of spread. The significance of these findings in relation to tsetse control is discussed.

Type
Research Paper
Information
Bulletin of Entomological Research , Volume 82 , Issue 2 , June 1992 , pp. 167 - 182
Copyright
Copyright © Cambridge University Press 1992

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References

Ahmed, M.M. & Dairri, M.F. (1987) Trypanosome infection rate of Glossina pallidipes during wet and dry seasons in Somalia. Tropical Animal Health and Production 19, 11–20.CrossRefGoogle Scholar
Allsopp, R. (1984) Control of tsetse flies (Diptera: Glossinidae) using insecticides: a review and future prospects. Bulletin of Entomological Research 74, 1–23.CrossRefGoogle Scholar
Allsopp, R., Baldry, D.A.T. & Rodrigues, C. (1972) The influence of game animals on the distribution and feeding habits of Glossina pallidipes in the Lambwe Valley. Bulletin of the World Health Organization 47, 795–809.Google ScholarPubMed
Bursell, E. (1966) The nutritional state of tsetse flies from different vegetation types in Rhodesia. Bulletin of Entomological Research 57, 171–180.CrossRefGoogle ScholarPubMed
Bursell, E. (1970) Dispersal and concentration of Glossina. pp 382–394in Mulligan, H.W. (Ed.) The African trypanosomiase. 950pp London, Allen & Unwin.Google Scholar
Challier, A. (1965) Amélioration de la méthode de détermination de l'age physiologique des glossines. Études faites sur Glossina palpalis gambiensis Vanderplank 1949. Bulletin de la Société de Pathologie exotique et de ses Filiales 58, 250–259.Google Scholar
Challier, A., Eyraud, M., Lafaye, A. & Laveissière, C. (1977) Amélioration du rendement du piège biconique pour glossines (Diptera, Glossinidae) par l'emploi d'un cône inférieur bleu. Cahiers ORSTOM, série Entomologie médicale et Parasitologic 15, 283–286.Google Scholar
Clarke, S.E. (1990). The war against tsetse: tsetse fly eradication along the Shebelle River, Somalia. Rural Development in Practice 2, 17–19.Google Scholar
Dransfield, R.D. (1984) The range of attraction of the biconical trap for Glossina pallidipes and Glossina longipennis. Insect Science and its Application 5, 363–368.Google Scholar
Dransfield, R.D., Brightwell, R., Kyorku, C. & Williams, B. (1990) Control of tsetse (Glossinidae) populations using traps at Nguruman, south west Kenya. Bulletin of Entomological Research 80, 265–276.CrossRefGoogle Scholar
Durbin, J. & Watson, G.S. (1950) Testing for serial correlation in least squares regression. I. Biometrika 37, 409–428.Google ScholarPubMed
Glasgow, J.P. (1961) Seasonal variation in size and colour and daily changes in the distribution of Glossina pallidipes Aust. in the South Busoga forest, Uganda. Bulletin of Entomological Research 52, 647–666.CrossRefGoogle Scholar
Glasgow, J.P. & Duffy, B.J. (1961) Traps in field studies of Glossina pallidipes Austen. Bulletin of Entomological Research 52, 795–814.CrossRefGoogle Scholar
Hargrove, J.W. & Vale, G.A. (1980) Catches of Glossina morsitans morsitans Westwood and G. pallidipes Austen (Diptera: Glossinidae) in odour-baited traps in riverine and deciduous woodlands in the Zambesi Valley of Zimbabwe. Bulletin of Entomological Research 70, 571–578.CrossRefGoogle Scholar
Holben, B.N. (1986) Characteristics of maximum-value composite images from temporal AVHRR data. International Journal of Remote Sensing 7, 1417–1434.CrossRefGoogle Scholar
Hugh-Jones, M. (1989) Applications of remote sensing to the identification of the habitats of parasites and disease vectors. Parasitology Today 5, 244–251.CrossRefGoogle Scholar
Jeffers, J.N.R. (1978) An introduction to systems analysis with ecological applications. London, Edward Arnold.Google Scholar
Lewis, T.J. & Siddorn, J.W. (1972) Measurement of the physical environment. pp. 235–273in Aphid technology. London & New York, Academic Press.Google Scholar
Moggridge, J.Y. (1936) Some observations on the seasonal spread of Glossina pallidipes in Italian Somaliland with notes on G. brevipalpis and G. austeni. Bulletin of Entomological Research 40, 43–47.CrossRefGoogle Scholar
Nash, T.A.M. (1937) Climate, the vital factor in the ecology of Glossina. Bulletin of Entomological Research 28, 75–127.CrossRefGoogle Scholar
Page, W.A.C. (1960) The ecology of Glossina longipalpis in southern Nigeria. Bulletin of Entomological Research 50, 595–615.CrossRefGoogle Scholar
Pilson, R.D. & Pilson, B.M. (1967) Behaviour studies of Glossina morsitans Westw. in the field. Bulletin of Entomological Research 57, 227–257.CrossRefGoogle ScholarPubMed
Power, R.J.B. (1964) The activity pattern of Glossina longipennis Corti. Proceedings of the Royal Entomological Society of London A 39, 5–14.CrossRefGoogle Scholar
Riley, J.R. (1989) Remote sensing in entomology. Annual Review of Entomology 34, 247–271.CrossRefGoogle Scholar
Rogers, D.J. (1977) Study of a natural population of Glossina fuscipes fuscipes Newstead and a model of fly movement. Journal of Animal Ecology 46, 309–330.CrossRefGoogle Scholar
Saunders, D.S. (1960) The ovulation cycle of Glossina morsitans Westwood (Diptera: Muscidae) and a possible method of age determination for female tsetse flies by the examination of their ovaries. Transactions of the Royal Entomological Society of London 112, 221–238.CrossRefGoogle Scholar
Sokal, R.R. & Rohlf, F.J. (1981) Biometry. 2nd Edn.859 pp. San Francisco, W.H. Freeman.Google Scholar
Tarimo, S.A., Golder, T.K., Dransfield, R.D., Chaudhury, M.F.B. & Brightwell, R. (1986) Preliminary observations on trypanosome infection rates in Glossina pallidipes and the factors affecting them at Nkruman, Kenya, pp. 276–283in 18th Meeting of the International Scientific Council for Trypanosomiasis Research and Control, Harare, Zimbabwe, 1985. OAU/STRC, Nairobi.Google Scholar
Tucker, C.J. & Sellers, P.J. (1986) Satellite remote sensing of primary production. International Journal of Remote Sensing 7, 1395–1416.CrossRefGoogle Scholar
Vale, G.A., Lovemore, D.F., Flint, S. & Cockbill, G.F. (1988) Odour-baited targets to control tsetse flies, Glossina spp. (Diptera: Glossinidae), in Zimbabwe. Bulletin of Entomological Research 78, 31–49.CrossRefGoogle Scholar
Wetherill, G.B. (1986) Regression analysis with applications. 311 pp. London & New York, Chapman & Hall.CrossRefGoogle Scholar
Williams, B.W., Dransfield, R.D. & Brightwell, R. (1991) The control of tsetse flies in relation to fly movement and trapping efficiency. Journal of Applied Ecology (in press).Google Scholar