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Sexual responses of males of Glossina morsitans morsitans Westwood and G. pallidipes Austen (Diptera: Glossinidae) to traps and targets in the field

Published online by Cambridge University Press:  10 July 2009

Richard Wall
Richard Wall
Affiliation:
Tsetse Research Laboratory, University of Bristol, Langford, Bristol, BS18 7DU, UK
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Abstract

Studies were conducted in Zimbabwe to determine the nature and degree of sexual responses of males of Glossina morsitans Westwood and G. pallidipes Austen around host animals, traps and targets. Males of both species, after being attracted, appeared to accumulate around a stationary bait. This was supported by observations of concentrations of unfed males of G. m. morsitans on bait animals and unfed males of G. pallidipes on the surrounding ground. Nutritional analysis confirmed that traps attract males with a range of hunger states but catch mainly hungry males of both species. Movement of electrified targets significantly increased the catches of both sexes of G. m. morsitans but not of G. pallidipes. Artificial female-mimicking decoys made from black felt sewn onto electrified targets significantly increased the numbers of G. m. morsitans males caught when the targets were stationary and of G. pallidipes males when they were moving. The electrified targets caught a higher proportion of males of both species than traps, most probably as a result of their killing the males accumulating around the target in search of virgin females. The results show that the behaviour of relatively well-fed males attracted to host animals, traps and targets does appear to have a sexual component in both G. m. morsitans and G. pallidipes and that it may be possible to exploit the sexual responses of males to increase capture efficiency further. However, targets may have far greater potential for such manipulation than traps.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 79 , Issue 2 , June 1989 , pp. 335 - 343
Copyright
Copyright © Cambridge University Press 1989

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References

Brady, J. (1975). ‘Hunger’ in the tsetse fly: the nutritional correlates of behaviour.—J. Insect Physiol. 21, 807–829.CrossRefGoogle ScholarPubMed
Bursell, E. (1959). The water balance of tsetse flies.—Trans. R. ent. Soc. Lond. 111, 205–235.Google Scholar
Bursell, E. (1961). The behaviour of tsetse flies (Glossina swynnertoni Austen) in relation to problems of sampling.—Proc. R. ent. Soc. Lond. (A) 36, 9–20.Google Scholar
Challier, A. & Laveissière, C. (1973). Un nouveau piège pour la capture des glossines (Glossina: Diptera, Muscidae): description et essais sur le terrain.—Cah. ORSTOM, Sér. Entomol. méd. Parasitol. 11, 251–262.Google Scholar
Charnov, E. L. (1976). Optimal foraging: the marginal value theorum.—Theor. Populat. Biol. 9, 129–136.CrossRefGoogle Scholar
Flint, S. (1985). A comparison of various traps for Glossina spp. (Glossinidae) and other Diptera.—Bull. ent. Res. 75, 529–534.CrossRefGoogle Scholar
Glasgow, J. P. (1963). The distribution and abundance of tsetse.—241 pp. Oxford, Pergamon Press.Google Scholar
Hall, M. J. R. (1988). Characterization of the sexual responses of male tsetse flies, Glossina morsitans morsitans, to pheromone-habited decoy ‘females’ in the field.—Physiol. Entomol. 13, 49–58.CrossRefGoogle Scholar
Hall, M. J. R. & Langley, P. A. (1987). Development of a system for sterilizing tsetse flies, Glossina spp., in the field.—Med. Vet. Entomol. 1, 201–210.Google Scholar
Hargrove, J. W. (1976). The effect of human presence on the behaviour of tsetse (Glossina spp.) (Diptera: Glossinidae) near a stationary ox.—Bull. ent. Res. 66, 173–178.Google Scholar
Hargrove, J. W. (1980). Improved estimates of the efficiency of traps for Glossina morsitans morsitans Westwood and G. pallidipes Austen (Diptera: Glossinidae), with a note on the effect of the concentration of accompanying host odour on efficiency. —Bull. ent. Res. 70, 579–587.Google Scholar
Huyton, P. M., Langley, P. A., Carlson, D. A. & Coates, T. W. (1980). The role of sex pheromones in initiation of copulatory behaviour by male tsetse flies, Glossina morsitans morsitans.—Physiol. Entomol. 5, 243–252.Google Scholar
Jaenson, T. G. T. (1979). Mating behaviour of males of Glossina pallidipes Austen (Diptera: Glossinidae).—Bull. ent. Res. 69, 573–588.Google Scholar
Langley, P. A. & Weidhaas, D. (1986). Trapping as a means of controlling tsetse, Glossina spp. (Diptera: Glossinidae): the relative merits of killing and of sterilization.—Bull. ent. Res. 76, 89–95.CrossRefGoogle Scholar
Owaga, M. L. A. & Challier, A. (1985). Catch composition of the tsetse Glossina pallidipes Austen in revolving and stationary traps with respect to age, sex ratio and hunger stage.—Insect Sci. Applic. 6, 711–718.Google Scholar
Swynnerton, C. F. M. (1936). The tsetse flies of East Africa. A first study of their ecology, with a view to their control.—Trans. R. ent. Soc. Lond. 84, 1–579.Google Scholar
Turner, D. A. (1987). The population ecology of Glossina pallidipes Austen (Diptera: Glossinidae) in the Lambwe Valley, Kenya. I. Feeding behaviour and activity patterens.—Bull. ent. Res. 77, 317–333.CrossRefGoogle Scholar
Vale, G. A. (1974a). The responses of tsetse flies (Diptera: Glossinidae) to mobile and stationary baits.—Bull. ent. Res. 64, 545–588.CrossRefGoogle Scholar
Vale, G. A. (1974b). New field methods for studying the responses of tsetse flies (Diptera: Glossinidae) to hosts.—Bull. ent. Res. 64, 199–208.CrossRefGoogle Scholar
Vale, G. A. (1980). Flight as a factor in the host-finding behaviour of tsetse flies (Diptera: Glossinidae).—Bull. ent. Res. 70, 299–307.Google Scholar
Vale, G. A. (1982). The improvement of traps for tsetse flies (Diptera: Glossinidae).—Bull. ent. Res. 72, 95–106.Google Scholar
Vale, G. A., Bursell, E. & Hargrove, J. W. (1985). Catching-out the tsetse fly.—Parasitology Today 1, 106–110.CrossRefGoogle ScholarPubMed
Vale, G. A., Hargrove, J. W., Cockbill, G. F. & Phelps, R. J. (1986). Field trials of baits to control populations of Glossina morsitans morsitans Westwood and G. Pallidipes Austen (Diptera: Glossinidae).—Bull. ent. Res. 76, 179–193.CrossRefGoogle Scholar
Wall, R. (1988). Tsetse mating behaviour: effects of age and hunger in Glossina morsitans morsitans and G. pallidipes.—Physiol. Entomol. 13.Google Scholar
Wall, R. (1989). The roles of vision and olfaction in mate location by the tsetse fly Glossina morsitans morsitans.—Med. Vet. Entomol. 3.CrossRefGoogle ScholarPubMed