Description of ultrasonic vocalizations ofthe mouse lemur (Microcebus murinus) and the fat-tailed dwarf lemur (Cheirogaleus médius).
Titre | Description of ultrasonic vocalizations ofthe mouse lemur (Microcebus murinus) and the fat-tailed dwarf lemur (Cheirogaleus médius). |
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Classification | SCIENCES ANIMALES. |
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Année de publication | 1987. |
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Titre de la série | American Journal of Primatology. |
Résumé | Ultrasonic (20 kHz) vocalizations were recorded from two species of prosimian primates, Microcebus murinus and Cheirogaleus medius. Three types of ultrasonic calls were emitted by isolated or paired M. murinus: 1) "chirps," short-duration (30 msec) calls with a sharp onset at 40 kHz followed by rapid and steep declines in frequency and intensity; 2) "twitters," characterized by a brief pulse at 25 kHz prior to the onset of repeating, frequency-modulated units; and 3) "long whistles," monotone signals with a frequency of 20 kHz. Partially ultrasonic "whines" were recorded from C. medius during interactions between mothers and infants. |
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Volume | 13. |
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Pagination | p:181-185. |
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Numéro de la série | 2. |
Date de publication | 2005/06/03. |
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