Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-10T12:55:55.075Z Has data issue: false hasContentIssue false
  • English
  • Français

A comparison of electric-trap and hand-net catches of Glossina palpalis palpalis (Robineau-Desvoidy) and G. tachinoides Westwood (Diptera: Glossinidae) in the Sudan vegetation zone of northern Nigeria

Published online by Cambridge University Press:  10 July 2009

D. J. Rogers  and
Sarah E. Randolph
D. J. Rogers
Affiliation:
Hope Department of Entomology, University Museum, Oxford, UK
Sarah E. Randolph
Affiliation:
Department of Zoology, South Parks Road, Oxford, UK
Get access Rights & Permissions [Opens in a new window]

Abstract

A comparison was made of the efficiencies of catching parties with hand nets and electric back-pack and screen traps for the capture of Glossina palpalis palpalis (R.-D.) and G. tachinoides Westw. in northern Nigeria. Whilst there was little to choose between the various devices during standing catches, one electric back-pack caught up to four times as many G. palpalis as two men with hand nets during moving catches on fly-rounds. Two reasons for the observed variation in success rate of the catching party with hand nets are suggested, and estimates are made of the relative efficiencies of each method at capturing flies during a single traverse of a fly-round. The combined use of the electric back-pack and screen drawn immediately behind the back-pack wearer recorded the arrival height of the flies, whilst hand-net catches tended to reflect the heights at which the flies spent most of their time after arrival. There were differences between the sexes both in arrival height, perhaps related to differences in resting heights on the vegetation, and in the fat and haematin levels of flies caught in hand nets above and below the waist. High ambient temperature reduced the average height of the visits of both sexes to human bait. The relevance of the results obtained in this study to sampling tsets populations is discussed in relation to various seasonal changes in hand-net samples recorded in the literature.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 68 , Issue 2 , July 1978 , pp. 283 - 297
Copyright
Copyright © Cambridge University Press 1978

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Davies, H. (1977). Tsetse flies in Nigeria. A handbook for junior control staff.—3rd edn, 340 pp. Ibadan, Nigeria; Oxford University Press.Google Scholar
Ford, J. (1969). Feeding and other responses of tsetse flies to man and ox and their epidemiological significance.—Acta trop. 26, 249–264.Google Scholar
Ford, J., Maudlin, I. & Humphryes, K. C. (1972). Comparisons between three small collections of Glossina morsitans morsitans (Machado) (Diptera: Glossinidae) from the Kilombero River Valley, Tanzania. Part I. Characteristics of flies exhibiting different patterns of behaviour.—Acta trop. 29, 231–249.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.CrossRefGoogle Scholar
Jackson, C. H. N. (1933). The causes and implications of hunger in tsetse flies—Bull. ent. Res. 24, 443–482.CrossRefGoogle Scholar
Jackson, C. H. N. (1946). An artificially isolated generation of tsetse flies (Diptera).—Bull. ent. Res. 37, 291–299.CrossRefGoogle ScholarPubMed
Jackson, C. H. N. (1953). Seasonal variations in the mean size of tsetse flies.—Bull. enc. Res. 43, 703–706.CrossRefGoogle Scholar
Keay, R. W. J. (1953). An outline of Nigerian vegetation.— 2nd edn., 52 pp. Lagos, Govt. Printer.Google Scholar
Rogers, D. J. & Smith, D. T. (1977). A new electric trap for tsetse flies.—Bull. ent. Res. 67, 153–159.CrossRefGoogle Scholar
Scholz, E., Spielberger, U. & Ali, j. (1976). The night resting sites of the tsetse fly Glossina palpalis palpalis (Robineau-Desvoidy) (Diptera, Glossinidae) in northern Nigeria.— Bull. ent. Res. 66, 443–452.CrossRefGoogle Scholar
Vale, G. A. (1974a). 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. (1974b). The responses of tsetse flies (Diptera, Glossinidae) to mobile and stationary baits.—Bull. ent. Res. 64, 545–588.CrossRefGoogle Scholar