Hostname: page-component-848d4c4894-jbqgn Total loading time: 0 Render date: 2024-06-29T14:03:06.209Z Has data issue: false hasContentIssue false

Observations on an apparent population extension of Glossina tachinoides Westwood in Southern Ivory Coast

Published online by Cambridge University Press:  19 September 2011

F. A. S. Kuzoe
Affiliation:
Trypanosomiases and Leishmaniasis Unit, Division of Parasitic Diseases, World Health Organization, Avenue Appia, Geneva, Switzerland
D. A. T. Baldry
Affiliation:
WHO Onchocerciasis Control Programme, B.P. 549, Ouagadougou, Upper Volta
A. van der Vloedt
Affiliation:
International Atomic Energy Agency, Vienna, Austria
J. R. Cullen
Affiliation:
2 Church Street, Ewell Village, Epsom, Surrey, U.K.
Get access

Abstract

Recent entomological surveys in the Bouaflé sleeping sickness focus of the Ivory Coast have revealed that Glossina tachinoides is considerably more widely distributed than hitherto. Some flies were found in the fringing riverine forests of tributaries of the River Marahoué. However, the greatest concentrations were found in villages and settlements where domestic pigs were kept. The southern limit of G. tachinoides now appears to lie one half degree of latitude further south than that reported by earlier investigators. The authors think there is good evidence that G. tachinoides is extending its range eastwards and southwards through and beyond the Bouaflé area, and the epidemiological significance of this is briefly discussed.

Résumé

Des enquêtes entomologiques récemment effectuées dans le foyer de maladie du sommeil de Bouaflé en Côte d'Ivoire ont révélé que Glossina tachinoides a une distribution beaucoup plus large que dans le passé. Certaines mouches se recontrent dans les forêts riveraines bordant les tributaires de la rivière Marahoué. Les concentrations les plus fortes sont cependant observeés dans les villages et les colonies de peuplement où se pratique l'élevage des porcs. La limite sud de répartition de G. tachinoides semble se situer à l'heure actuelle à 0,50 degré de latitude plus au sud qu'il n'a été signalé auparavant par d'autres chercheurs. Pour les auteurs, tout laisse croire que l'aire de répartition de G. tachinoides s'étend vers l'est et le sud, traversant la région de Bouaflé. L'importance épidémiologique de cette extension est brièvement discutée.

Type
Research Articles
Copyright
Copyright © ICIPE 1985

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

REFERENCES

Baldry, D. A. T. (1966a) On the distribution of Glossina tachinoides in West Africa. I: The distribution of G. tachinoides in southern Nigeria. Rep. 11th Mtg int. sci. Coun. Tryp. Res. Nairobi 1966, CCTA Publication No. 100, pp. 95102.Google Scholar
Baldry, D. A. T. (1966b) On the distribution of Glossina tachinoides in West Africa. II: An assessment of the probable present distribution of G. tachinoides in West Africa and of possible future extensions, based on existing records and recent observations in southern Nigeria. Rep. 11th Mtg int. sci. Coun. Tryp. Res. Nairobi 1966, CCTA Publication. pp. 103109.Google Scholar
Baldry, D. A. T. (1969) Variations in the ecology of Glossina spp. with special reference to Nigerian populations of Glossina tachnoides. Bull. Wld Hlth Org. 40, 859869.Google Scholar
Ford, J. and Katondo, K. M. (1977) Maps of tsetse fly (Glossina) distribution in Africa, 1973 according to sub-generic groups on scale of 1:5,000,000. Bull. Anim. Hlth Prod. 25, 187198.Google Scholar
Guillaumet, J. L. and Adjanohoun, E. (1971) Carte de la végétation de la Côte d'Ivoire l'echelle de 1/500,000. Mem. ORSTOM No. 50, Le Milieu Naturel de la Côte d'Ivoire, ORSTOM, Bondy, France.Google Scholar
Laveissiere, C. and Challier, A. (1976) Le foyer de Trypanosomiase Humaine de Bouaflé (Côte d'Ivoire): Enquête Entomologique et Epidémiologique, Propositions pour une Campagne Insecticide. Doc. Techn. OCCGE, No. 6308.Google Scholar