Hostname: page-component-78c5997874-94fs2 Total loading time: 0 Render date: 2024-11-07T12:34:20.259Z Has data issue: false hasContentIssue false

The diurnal feeding activity of Glossina pallidipes Aust. in relation to trypanosome challenge.

Published online by Cambridge University Press:  10 July 2009

B. M. Leggate
Affiliation:
Department of Tsetse and Trypanosomiasis Control and Reclamation, Federal Ministry of Agriculture, Salisbury, Southern Rhodesia.
R. D. Pilson
Affiliation:
Department of Tsetse and Trypanosomiasis Control and Reclamation, Federal Ministry of Agriculture, Salisbury, Southern Rhodesia.

Extract

The limitations of the use of apparent density in estimating trypanosomechallenge are discussed, and it is concluded that such estimates should be based on the feeding portion of the tsetse population, its activity in relation to a given host, the total period of feeding activity (or parts thereof) as the unit of time, and the trypanosome infection rate.

A method of investigating the diurnal feeding activity of Glossina pallidipes Aust. in the late dry season at Eekomitjie, in the Zambezi Valley in Southern Rhodesia, is described. A black ox was tethered daily under a large tree from before dawn until after dusk. Only flies that engorged on the ox were caught; the time of capture and sex of each fly was recorded, and the fly then marked and released. Catches were made on 15 separate but not consecutive days between 21 October and 30 November, 1959.

Diurnal activity extended from 0445 to 1845 hr., there being a small earlymorning peak, reduced activity over the midday period, and a comparatively large evening peak. Climatic factors were recorded but no conclusions could be drawn about their separate effects on activity.

Type
Research Paper
Copyright
Copyright © Cambridge University Press 1961

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

Anon. (1955). Department of Veterinary Services (Kenya). Annual report 1954.—107 pp. Nairobi.Google Scholar
Barrass, R. (1960). The settling of tsetse flies Glossina morsitans Westwood (Diptera, Muscidae) on cloth screens.—Ent. exp. appl. 3 pp. 5967.CrossRefGoogle Scholar
Buxton, P. A. (1955). The natural history of tsetse flies.—Mem. Lond. Sch. Hyg. trop. Med. no. 10, 816 pp. London, Lewis.Google Scholar
Fiske, W. F. (1920). Investigations into the bionomics of Glossina palpalis.—Bull. ent. Res. 10 pp. 347463.Google Scholar
Ford, J., Glasgow, J. P., Johns, D. L. & Welch, J. R. (1959). Transect fly-rounds in field studies of Glossina.—Bull. ent. Res. 50 pp. 275285.Google Scholar
Jack, R. W. (1941). Further studies in the physiology and behaviour of Glossina morsitans Westw.—Mem. Dep. Agric. S. Rhod. no. 3, 54 pp.Google Scholar
Jackson, C. H. N. (1953). A mixed population of Glossina morsitans and G. swynnertoni.—J. Anim. Ecol. 22 pp. 7886.CrossRefGoogle Scholar
Moggridge, J. Y. (1949). Climate and the activity of the Kenya coastal Glossina.—Bull. ent. Res. 40 pp. 307321.Google Scholar
Morris, K. R. S. & Morris, M. G. (1949). The use of traps against tsetse in West Africa.—Bull. ent. Res. 39 pp. 491528.CrossRefGoogle ScholarPubMed
Nash, T. A. M. (1937). A statistical analysis of the climatic factors influencing the density of tsetse flies, Glossina morsitans Westw.—J. Anim. Ecol. 2 pp. 197203.CrossRefGoogle Scholar
Rennison, B. D. (1958). Taux d'infection des mouches tsé-tsés et estimation du nombre de trypanosomes nécessaires à l'infection.—6th Mtg int. sci. Comm. Tryp. Res., Salisbury 1956 pp. 5160.Google Scholar
Smith, I. M. & Rennison, B. D. (1958). Studies on sampling methods for Glossina populations.—Rep. E. Afr. Tryp. Res. Org. 1956–57 pp. 4346.Google Scholar
Smith, I. M. & Rennison, B. D. [1960]. Some factors concerned in trypanosome challenge.—7th Mtg int. sci. Comm. Tryp. Res., Brussels 1958 pp. 6366.Google Scholar
Van den Berghe, (L.), Lambrecht, F. L. & Christiaensen, A. R. (1956). Etude biologique et écologique des glossines dans la région du Mutara (Ruanda).—Mem. Acad. R. Sci. colon., Cl. Sci. nat. 8° (N.S.) 4 fasc. 2, 103 pp.Google Scholar
Vanderplank, F. L. (1944). Studies of the behaviour of the tsetse-fly, Glossina pallidipes, in the field: the attractiveness of various baits.—J. Anim. Ecol. 13 pp. 3948.Google Scholar
Vanderplank, F. L. (1948). Studies of the behaviour of the tsetse-fly (Glossina pallidipes) in the field: influence of climatic factors on activity.—J. Anim. Ecol. 17 pp. 245260.CrossRefGoogle Scholar
Williams, W. L. (1943). On the activity of the tsetse, Glossina pallidipes and other tsetse during a 24 hour period.—Rhod. agric. J. 40 pp. 368370.Google Scholar