Antipredator Behavior in Troops of Free-Ranging Lemur catta at Beza Mahafaly Special Reserve, Madagascar
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چکیده
Observations of antipredator behavior in two troops of free-ranging Lemur catta were made during a 13-month study o f L. cattafeeding ecology. Both responses to and frequency o f encounters with other species were recorded. Ringtailed lemur antipredator calls differentiated between terrestrial and avian predators. L. catta responded to the Madagascar harrier hawk (Polyboroides radiatus) and the Madagascar buzzard (Buteo brachypterus) in a specific manner that differed from their reaction to the other bird o f prey in the reserve, the Black kite (Milvus migrants ~, and to potential mammalian and reptilian predators. Encounters with avian predators peaked during the birth season and when infants were being weaned. These periods coincide with previously observed nesting periods for the Harrier hawk and the buzzard, and with times when their offspring are fledged. Both were periods when L. catta infants might have been especially vulnerable to predation.
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Reproductive Behavior of Free-Ranging Lemur catta at Beza Mahafaly Special Reserve, Madagascar
Observations of reproductive behavior in free-ranging Lemur catta were carried out during one annual cycle. Variability in the behavior of female ringtailed lemurs during parturition appears to be mainly a function of the female's parity and thus her experience. Females within a troop show estrous asynchrony and characteristically mate with more than one male. Females also exhibit proceptive be...
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