Roosts used by Sturnira lilium (Chiroptera : Phyllostomidae) in Belize

Between 9 and 22 January 1999, radio-tracking revealed that nine Sturnira l ilium (seven females, one lactating, and two males) used hollow trees (N = 5), vine tangles (N = 2), or the bases of palm fronds (N = 1) as day roosts near Lamanai in Belize over 43 roost days. The hats roosted in hollows of four tree species, and the roost entrances ranged from 2.0 to 7.9 m above t he ground. Radio-ragged individuals returned to the same roosts day after d ay with the exception of a subadult female that used at least three day roo sts over the course of the study. In their day roosts, S. lilium were incon spicuous, difficult to flush, and easily overlooked. Radio-tagged bats usua lly roosted alone and emerged significantly later than bars without radio t ags.