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The construction of a life-table for Glossina morsitans morsitans Westwood (Diptera: Glossinidae) from seasonal age-measurements of a wild population

Published online by Cambridge University Press:  10 July 2009

P. Taylor
P. Taylor
Affiliation:
Zoology Department, University of Rhodesia, Box MP. 167, Mount Pleasant, Salisbury, Zimbabwe-Rhodesia*.
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Abstract

Samples of female Glossina morsitans morsitans Westw. were collected in the Zambesi Valley in Zimbabwe-Rhodesia using an electric net and aged using the overian ageing technique. Similar age-structures were demonstrated in the four seasons studied, and the life-table constructed on the basis of the reproductively active members of the population indicates that females produce more than two female offspring in a lifetime. The tsetse population is considered to be regulated by the survival of the newly emerged teneral flies and non-teneral nullipars. The intrinsic rate of natural increase (rm) is calculated from the life-table as 0·01204 for the reproductively active sector of the population.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 69 , Issue 4 , December 1979 , pp. 553 - 560
Copyright
Copyright © Cambridge University Press 1979

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