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Terry A. Vaughan Department of Biological Sciences, Northern Arizona University, Flagstaff, Arizona 86001 Search for other works by this author on: Oxford Academic
Journal of Mammalogy, Volume 57, Issue 2, 20 May 1976, Pages 227–248, https://doi.org/10.2307/1379685
Published:
20 May 1976
Article history
Received:
20 April 1975
Accepted:
15 May 1975
Published:
20 May 1976
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Terry A. Vaughan, Nocturnal Behavior of the African False Vampire Bat (Cardioderma cor), Journal of Mammalogy, Volume 57, Issue 2, 20 May 1976, Pages 227–248, https://doi.org/10.2307/1379685
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Abstract
Nocturnal behavior of the African false vampire bat (Cardioderma cor) was studied in bushland in southern Kenya, East Africa. Observations were made with a night-viewing device, and work was concentrated on the foraging strategy. This bat roosts in hollow baobab trees in groups of up to some 80 individuals. At night each bat occupies an exclusive foraging area. Individuals spend considerable time singing and establishing their exclusive areas during the March–April wet season when food is abundant; these areas have greatest survival value toward the end of the long May–October dry season, when food is in short supply, foraging occupies nearly the entire night, and singing is infrequent. Nocturnal time budget is characterized by long periods spent perching in low vegetation and listening for terrestrial prey. Flights to capture prey and between perches are brief and short, usually lasting less than 5 seconds and covering less than 25 meters. Food is typically captured on the ground, and consists primarily of large, ground-dwelling beetles, but centipedes and scorpions, and on rare occasions small bats, are also taken. During parts of the rainy seasons leaf gleaning and aerial captures of insects are important; at these times katydids (Tettigoniidae), locusts (Locustidae), and sphinx moths (Sphingidae) are major food items. Pronounced seasonal shifts in foraging behavior associated with the bimodal pattern of rainfall are discussed, and the evolution of the bat's unusual style of foraging is considered.
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1976 American Society of Mammalogists
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