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Further observations on the resting site preferences of the tsetse, Glossina palpalis gambiensis Vanderplank (Diptera: Glossinidae), in Mali

Published online by Cambridge University Press:  19 September 2011

S. N. Okiwelu*
New Lands Activity, Mali Livestock II Project, O. M. BE. VI., B.P. 1382, Bamako, Mali
*Address for correspondence: School of Biological Sciences, University of Port Harcourt, P. M. B. 5323, Port Harcourt, Rivers State, Nigeria.
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A study of the resting site preferences of Glossina palpalis gambiensis in an area of a gallery forest in the Northern Guinea Savanna of Mali, infested exclusively by G. p. gambiensis was conducted in February, 1980 (hot dry season). Five site-types were compared: fallen logs, boles, undergrowth, tree canopies and branches. Distribution of resting flies was as follows: fallen logs (55.62%), boles (35.24%), undergrowth (8.4%), tree canopies (0.61%) and branches (0.00%). Most of the flies were collected during the periods 06.00–09.00 (37.47%) and 09.00–12.00 hr (46.5%). On boles, 86.06% of flies were found below 1.0 m and no flies were collected above 2.0 m. These results are compared to those obtained during simultaneous studies on the resting site preferences of G. p. gambiensis in an area along the same gallery forest, with mixed G. p. gambiensis and G. morsitans submorsitans infestation. Possible reasons for the differences observed are discussed.

Research Article
Copyright © ICIPE 1983

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