T. Alvarez et N. Sanchez-casas, Sexual diet differences in Glossophaga soricina (Chiroptera : Phyllostomidae) from Mexico, REV BIOL TR, 47(4), 1999, pp. 1129-1136
To study alimentary differences of the bat Glossophaga soricina in Mexico,
individual and sexual variation were recorded in 238 stomach contents from
several localities and dates. Samples were classified in nine groups to avo
id seasonal and geographical bias. Individual differences (studied only in
females) identified one dominant plant species by locality, but with except
ions, suggesting individual opportunistic or feeding preferences. For sexua
l differences a "Gw" test (with William's correction) was applied; four bat
groups have important differences, four groups have minor differences and
in one group, male and female diets were similar.