Being a rare species (1), knowledge of the biology of the Guadeloupean big-eyed bat is limited, and despite ongoing surveys, no specimens were found between 1985 and 2004. However, a lactating female was caught and released during July on the island of Montserrat in 2005 (4).
Bats of the New World tropics typically give birth twice a year, at times when food is plentiful. The Guadeloupean big-eyed bat is thought to give birth to a single infant at a time, with the female mating again shortly after the birth. Young bats are unable to fly during the first few weeks of life, and so are particularly vulnerable at this time (5).
Little is known about the diet of the Guadeloupean big-eyed bat, but it is presumed to feed mainly upon fruit, like other species in the genus Chiroderma (2). Frugivorous bats play an important role in seed dispersal, which is particularly important on the island of Montserrat, where volcanic eruptions, and Hurricane Hugo in 1989, have led to the defoliation of much of the island (6).