(Uploaded by Plazi for the Bat Literature Project) In the forests of central Panama and western Mexico, Artibeus jamai censis roost during the day in foliage and inside hollow trees. Foliage roosts wer generally occupied by solitary males or groups of 2 to 3 male and juvenile bats. Ho roosts contained 4 to 11 females, their young, and invariably a single adult male. Th composition of day roosting groups suggests a harem mating organization based male defense of hole roosts used by females.