Tufted capuchin monkeys (Sapajus sp) learning how to crack nuts: Does variability decline throughout development?

Autor(es)

Resende, Briseida Dogo ; Nagy-Reis, Mariana Baldy ; Lacerda, Fernanda Neves ; Pagnotta, Murillo ; Savalli, Carine

• Tipo de documento: Artigo Científico
• Fonte: Behavioural Processes; v. 109, p. 6-pg., 2014-11-01.

Resumo

We investigated the process of nut-cracking acquisition in a semi-free population of tufted capuchin monkeys (Sapajus sp) in Sao Paulo, Brazil. We analyzed the cracking episodes from monkeys of different ages and found that variability of actions related to cracking declined. Inept movements were more frequent in juveniles, which also showed an improvement on efficient striking. The most effective behavioral sequence for cracking was more frequently used by the most experienced monkeys, which also used nonoptimal sequences. Variability in behavior sequences and actions may allow adaptive changes to behavior under changing environmental conditions. (C) 2014 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 07/57618-5 - Influência social na resolução de problemas: um estudo a partir da perspectiva da percepção e ação
• Beneficiário: Briseida Dôgo de Resende
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
• Processo FAPESP: 99/11573-2 - Ontogenia de comportamentos manipulativos em um grupo de macacos (Cebus apella) em situação de semi-liberdade
• Beneficiário: Briseida Dôgo de Resende
• Modalidade de apoio: Bolsas no Brasil - Doutorado