Descrição dos parâmetros acústicos das vocalizações de três espécies de Callicebus thomas, 1903 (Primates, Pitheciidae) em três áreas: Mata Atlântica da Bahia e de Minas Gerais e Caatinga da Bahia

Abstract

The use of sound in communication is an extremely important factor in several interactions indispensable to the survival and social organization of many groups of animals. In primates, especially in arboreal, the use of vocalizations is crucial for their survival. High levels of degradation of vegetation has caused great concern, resulting in significant habitat loss of many species especially primates, and the impacts of greatest relevance in endangered species. The use of acoustic parameters in studies of primate species has shown great importance to the knowledge of the specifics of each individual, which can serve as a basis for developing strategies aimed at the maintenance and conservation of these species. In the present study, we will analyze possible differences in acoustic vocalizations guigós (C. coimbrai, C. barbarabrownae and C. nigrifrons) in two fragments of Atlantic Forest and Caatinga in the states of Bahia, Minas Gerais and Bahia respectively, using a microphone with recorder to capture the possible answers. The lowest frequency was presented by C. coimbrai 107.2 KHz and higher by C. barbarabrownae 2010.8 kHz, the largest number of syllables 190 was shown by C. barbarabrownae and lower by 49 C. coimbrai. The acoustic parameters such as frequency, syllable duration and range will be demonstrated through sonograms and analyzed for each species by comparing them between the occurrence of the same environments.