Predator avoidance behaviour in the buffy-headed marmoset,Callithrix flaviceps |
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Authors: | Stephen Francis Ferrari Maria Aparecida Lopes Ferrari |
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Institution: | (1) University College London, UK;(2) Universidade Federal de Minas Gerais, Brasil;(3) Present address: Departamento de Zoologia, Museu Paraense Emílio Goeldi, Caixa Postal 399, 66.040 Belém, PA, Brasil |
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Abstract: | The predator avoidance behaviour of a free-ranging group of buffy-headed marmosets,Callithrix flaviceps, was recorded in detail during the course of a long-term study of behavioural ecology at the Fazenda Montes Claros, southeastern
Brazil. Four distinct patterns of predator avoidance behaviour, each with specific vocalisations, were recognised and are
described here. The selection and use of sleeping sites by the study group are also described. An analysis of the records
indicates that these small monkeys are generally most vulnerable to predation by aerial raptors. Variations in the frequency
of alarm calls also indicate that the marmosets tend to be more vigilant at higher levels in the forest and when the leaf
cover is less extensive. The implications of group size and social structure for both the evolution and the efficacy of the
anti-predator behaviour of marmosets are also discussed. |
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Keywords: | Callitrichids Callithrix flaviceps Behaviour Predator avoidance |
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