Renata - Kyoto - Japão

23º Congresso Internacional de Primatologia, realizado entre 12 e 18 de setembro passado, na Universidade de Kyoto, no Japão.

Integraram a delegação brasileira que participou do congresso principalmente professores e estudantes de universidades como Unifesp, UFG, UFRN, USP, UnB, PUCRS e organizações não-governamentais como WCS, Pró-Muriqui, CECO.

CEBUS LIBIDINOSUS AND C. FLAVIUS IN NORTHEASTERN CAATINGA: LIMITS OF OCCURRENCE, AREA OF USE, AND DIET
R.G Ferreira1, R.A. Emidio1
1Programa de Pós-graduação em Psicobiologia, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brasil
Presenter’s Email: rgf27br@yahoo.com.br

Abstract:
Capuchin monkeys are occupying Caatinga areas in northeastern Brazil, representing the extreme dry and hot environment of this genus distribution. We surveyed a total of 17 Caatinga areas during a 36 months period (Jan 2007 to Dec 2009). Groups of Cebus libidinosus were found in nine areas and one group of C. flavius in one. This is the northeastern most limit of C. flavius, a species typical from Atlantic forest, and an indication that Caatinga formed during Pleistocene after retraction of Amazonian forest. Two areas were intensively studied during 12 months (Jan to Dec 2009): 100 hectares of arboreal Caatinga (trees of 6m high) and 80 hectares of arbustive Caatinga (trees up to 3m high) both with deciduous leaves. Group size did not differ between species (mean = 20 animals) but larger groups were observed during dry than during rain periods (dry: median= 20 animals n= 09; rain: median=7 animals, n= 12).Large number of nut cracking tool use sites were found in both areas (up to 613 in a single month), and seems correlated to availability of alternative exotic foods (corn, mango and cashew). Four different nuts at different maturation stages are cracked. Total exploration areas was larger at arbustive (17ha) than at arboreal caatinga (13ha) but mean exploration areas did not varied from rain to dry periods (dry=1.39ha, rain=1.43ha). Our data confirm Cebus dietary and behavioral flexibility, and environmental differences account for differences found between C. libidinosus and C flavius socioecology.

Key words: Cebus libidinosus, Cebus flavius, socioecology, caatinga

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