Hostname: page-component-78c5997874-4rdpn Total loading time: 0 Render date: 2024-11-10T11:49:29.611Z Has data issue: false hasContentIssue false
  • English
  • Français

Studies in House Leaving and Outside Resting of Anopheles gambiae Giles and Anopheles funestus Giles in East Africa. II.—The Exodus from Houses and the House Resting Population

Published online by Cambridge University Press:  10 July 2009

M. T. Gillies
M. T. Gillies
Affiliation:
East African Malaria Unit, Amani, Tanganyika.
Get access Rights & Permissions [Opens in a new window]

Extract

Observations on the behaviour of Anopheles gambiae Giles and A. funestus Giles in experimental huts and ordinary African houses were carried out in a low-lying area of Tanganyika. Special attention was paid to the exodus of females at different stages of the gonotrophic cycle and to the composition in terms of ovarian development of the house resting population.

About 5 per cent. of the biting population of gambiae and the same number of funestus were shown by the use of window traps to be leaving experimental huts after feeding.

Forty three per cent. of half-gravid gambiae left an experimental hut at dusk, 12–24 hours after entering for a blood meal, whereas only 3 per cent. of funestus left under the same conditions.

Daytime spray catches of gravid gambiae and funestus made in ordinary African houses during the hot season were about 50 per cent. and 30 per cent. lower, respectively, than the corresponding numbers of recently fed specimens. A. funestus therefore makes rather less use of outside shelters than gambiae during the hot months.

In the cool season about 50 per cent. of half-gravid and gravid funestus were absent from house catches.

No mortality could be detected amongst funestus females resting under natural conditions for 24 hours in an experimental hut.

Re-entry of gravid funestus into unoccupied and open types of inhabited houses occurs at dawn.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 45 , Issue 2 , June 1954 , pp. 375 - 387
Copyright
Copyright © Cambridge University Press 1954

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

Campbell, R. W. H. (1951). A preliminary statistical study of Anopheles gambiae Giles, based on maxillary indices.—Bull. ent. Res., 42, pp. 647–658.Google Scholar
Causey, O. R., Deane, L. M. & Deane, M. P. (1943). Ecology of Anopheles gambiae in Brazil.—Amer. J, trop. Med., 23, pp. 73–94.Google Scholar
De Meillon, B. (1947). The Anophelini of the Ethiopian geographical region.—Publ. S. Afr. Inst. med. Res., 10, no. 49, 272 pp.Google Scholar
Gillies, M. T. (1953). The duration of the gonotrophic cycle in Anopheles gambiae and Anopheles funestus, with a note on the efficiency of hand catching.—E. Afr. med. J., 30, pp. 129–135.Google Scholar
Gillies, M. T. (1954). Studies in house leaving and outside resting of Anopheles gambiae Giles and Anopheles funestus Giles in East Africa. I. The outside resting population.—Bull. ent. Res., 45, pp. 361–373.Google Scholar
Gordon, R. M., Hicks, E. P., Davey, T. H. & Watson, M. (1932). A study of the house-haunting Culicidae occurring in Freetown, Sierra Leone.—Ann. trop. Med. Parasit. 26, pp. 273–345.CrossRefGoogle Scholar
Haddow, A. J. (1942). The mosquito fauna and climate of native huts at Kisumu, Kenya.—Bull. ent. Res., 33, pp. 91–142.Google Scholar
Haddow, A. J., Gillett, J. D. & Highton, R. B. (1947). The mosquitoes of Bwamba County, Uganda. Part V. The vertical distribution and biting-cycle of mosquitoes in rain-forest with further observations on micro-climate.—Bull. ent. Res., 37, pp. 301–330.CrossRefGoogle Scholar
Hocking, K. S. & MacInnes, D. G. (1948). Notes on the bionomics of Anopheles gambiae and Anopheles funestus in East Africa.—Bull. ent. Res., 39, pp. 453–465.CrossRefGoogle ScholarPubMed
Holstein, M. H. (1949). Le problème d'Anopheles gambiae.—Bull. méd. A.O.F., 1949, no. spéc., pp. 155–160.Google Scholar
Macdonald, G. (1952). The analysis of the sporozoite rate.—Trop. Dis. Bull., 49, pp. 569–586.Google ScholarPubMed
Muirhead Thomson, R. C. (1948). Studies on Anopheles gambiae and A. melas in and around Lagos.—Bull. ent. Res., 38, pp. 527–558.CrossRefGoogle Scholar
Muirhead Thomson, R. C. (1951 a). Mosquito behaviour in relation to malaria transmission and control in the Tropics. 219 pp. London, Arnold.Google Scholar
Muirhead Thomson, R. C. (1951 b). Studies on salt-water and fresh-water Anopheles gambiae on the East African coast.—Bull. ent. Res., 41, pp. 487–502.Google Scholar
Ribbands, C. R. (1946). Moonlight and house-haunting habits of female Anophelines in West Africa.—Bull. ent. Res., 36, pp. 395–417.Google Scholar
Ross, R., Annett, H. E. & Austen, E. E. (1900). Report of the Malaria Expedition of the Liverpool School of Tropical Medicine and Medical Parasitology.—Mem. Lpool Sch. trop. Med., no. 2, 58 pp.Google Scholar