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From a case study to a theoretical basis for tsetse control

Published online by Cambridge University Press:  19 September 2011

David J. Rogers  and
Sarah E. Randolph
David J. Rogers
Affiliation:
Department of Zoology, South Parks Road, Oxford OX1 3PS, England
Sarah E. Randolph
Affiliation:
Department of Zoology, South Parks Road, Oxford OX1 3PS, England
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Abstract

The paper presents a way of estimating average daily mortality rates of female tsetse from ovarian age distributions. This technique was applied to monthly biconical trap samples of G. palpalis taken during and after insecticidal campaigns in the Bouaflé region of Ivory Coast. A clear inverse relationship is demonstrated between the annual mean number of females per trap per sample at 10 separate sites, and the mean annual mortality rates calculated for them. Local variation in the impact of insecticides is explained in terms of the grouping of the sites either side of a level of natural mortality above which tsetse populations cannot be sustained through reproduction alone.

A theoretical model for density dependent population growth is presented and applied to a particular control situation, that of the sterile insect release method. The model demonstrates that the effectiveness of any particular level of induced sterility (or mortality) is crucially determined by the natural resilience of the target population.

Keywords

Tsetse controlmodel for SIT
Type
Research Article
Information
International Journal of Tropical Insect Science , Volume 5 , Special Issue 5: Tsetse Behaviour and Population Ecology , October 1984 , pp. 419 - 423
Copyright
Copyright © ICIPE 1984

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References

REFERENCES

Gouteux, J.-P. and Kiénou, J.-P. (1982) Observations sur les glossines d'un foyer forestier de trypanosomiase humaine en Côte d'lvoire. 5. Peuplement de quelques biotopes caracteristiques: plantations, forêt et galeries forestières, en saison des pluies. Cah. O.R.S.T.O.M., sér. Ent. méd. Parasit. 20, 41–61.Google Scholar
Maynard-Smith, J. and Slatkin, M. (1973) The stability of predator-prey systems. Ecology 54, 384–391.CrossRefGoogle Scholar
Okiwelu, S. N. (1976) Seasonal variation in age-composition and survival of a natural population of female Glossina morsitans morsitans Westwood at the Chakwenga Game Reserve, Republic of Zambia. Zamb. J. Sci. Technol. 1, 48–58.Google Scholar
Randolph, S. E., Rogers, D. J. and Kuzoe, F. A. S. (1984) Local variation in the population dynamics of Glossina palpalis palpalis (Robineau-Desvoidy) (Diptera: Glossinidae). II. The effect of insecticidal spray programmes. Bull. ent. Res. In press.CrossRefGoogle Scholar
Rogers, D. J. and Randolph, S. E. (1984) A review of density dependent processes in tsetse populations. Insect Sci. Applic. 5, 397–402.Google Scholar
Rogers, D. J., Randolph, S. E. and Kuzoe, F. A. S. (1984) Local variation in the population dynamics of Glossina palpalis palpalis (Robineau-Desvoidy) (Diptera: Glossinidae). I. Natural population regulation. Bull. ent. Res. In press.CrossRefGoogle Scholar
Saunders, D. S. (1967) Survival and reproduction in a natural population of the tsetse fly Glossina palpalis palpalis (Robineau-Desvoidy). Proc. R. ent. Soc. Lond. (A) 42, 129–137.Google Scholar