Diferenciación alimentaria entre los sexos de Glossophaga soricina (Chiroptera: Phyllostomidae) en México

Abstract

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 avoid seasonal and geographical bias. Individual differences (studied only in females) identified one dominant plant species by locality, but with exceptions, suggesting individual opportunistic or feeding preferences. For sexual 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.