Abstract

OBSERVATIONS in three bat-infested caves in Trinidad suggest that roosting bats can play a considerable part in cave excavation where the rock is soft. The best example of this bat erosion is to be seen in a cave in soft coral reef limestone in Mt. Tamana. Wherever the roof is dry, as indicated by the absence of stalactite growth, it is pitted with numerous bell-shaped cavities, the upper parts of which are lined, by day, by a layer of closely packed sleeping bats. On the cave floor below each such cavity is a conical mound of bat guano.

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