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Prediction of the distribution of Glossina tachinoides (Diptera: Glossinidae) in the Volta basin of northern Ghana

Published online by Cambridge University Press:  09 March 2007

C.I. Mahama
Affiliation:
Tsetse and Trypanosomiasis Control Unit, Veterinary Services Department, PO Box 97, Pong Tamale, Ghana
A. Koné
Affiliation:
Centre International de Recherche-Developpement sur l'Elevage en zone Sub-humide (CIRDES), 01 BP 454, Bobo-Dioulasso, Burkina Faso
S. de la Rocque
Affiliation:
Centre de Coopération Internationale en Recherche Agronomique pour le Développement, (CIRAD-EMVT) BP 5035, 34032 Montpellier, France
R. De Deken
Affiliation:
Institute of Tropical Medicine, Nationalestraat 155, 2000 Antwerp, Belgium
S. Geerts*
Affiliation:
Institute of Tropical Medicine, Nationalestraat 155, 2000 Antwerp, Belgium
*
*Fax: 00-32-3-2476268 E-mail: [email protected]

Abstract

The classification of a Landsat Thematic Mapper satellite image helped demonstrate prevailing habitat types and land use intensity in the Volta basin of the Northern Region of Ghana. A geo-referenced data layer comprising the capture results of a cross-sectional survey of Glossina tachinoides Westwood was over-laid on a data layer of habitat types within 500 m of either bank of the Volta river and its tributaries. An evaluation of the relationship between habitat types and the capture results of G. tachinoides suggested a strong preference of G. tachinoides for woodland, followed by shrubland, grassland and flood plains. The findings were used to classify the suitability of habitat types for G. tachinoides as ‘high’, ‘medium’ and ‘low’ and a prediction map for the distribution of G. tachinoides in the entire river network was produced. The usefulness of this method in estimating the potential distribution of G. tachinoides in an area of increasing agricultural expansion is discussed.

Type
Research Article
Copyright
Copyright © Cambridge University Press 2005

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