Vocalizations in the Malagasy Cave-Dwelling Fruit Bat, Eidolon dupreanum: Possible Evidence of Incipient Echolocation?

  title={Vocalizations in the Malagasy Cave-Dwelling Fruit Bat, Eidolon dupreanum: Possible Evidence of Incipient Echolocation?},
  author={M. Corrie Schoeman and Steven M. Goodman},
The vocalizations of the Malagasy endemic fruit bat, Eidolon dupreanum (family Pteropodidae) were previously not documented. Individuals of this species, which make day roost sites in rock crevices or the dark zones within caves, were recorded while exiting a cave in the Parc National d'Ankarana. Individuals leaving a roost at dusk were recorded 200 m and 35 m inside the cave, as well as two sites outside the cave. Visible light in the cave dropped to 0 lux about 50 m from the entrance. While… 

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