The Analysis of a Tsetse-Fly Population. II

Abstract

This paper continues a previous contribution (1941 a), and presents earlier and later data hitherto Unpublished. The work was done in Tanganyika Territory at and about Kakoma, of which the surroundings have already been described (1937). From January 1935 to April 1938, with an inter- ruption of a little more than five months in 1936, tsetse-flies (Glossina morsitans) were marked in a nearly square rectangle 1-8 sq. miles in area (Fig. 1). From July 1938 to May 1940 inclusive, a new and larger square replaced the old one; and from late August 1938 to id-August 1939 a similar new square was in operation at Kisoko, 8 miles from Kakoma, in country which until the end of July 1939 was protected from the normal annual grass fires (194Ia),