Abstract
Five species of titi monkey (Callicebus brunneus, Callicebus caligatus Callicebus cinerascens, Callicebus donacophilus, andCallicebus moloch) were recorded in surveys of primate populations at 26 sites throughout the Brazilian state of Rondônia. The distribution of the two species,C. cinerascens andC. donacophilus (recorded in the state for the first time), appeared to be related to that of non-forest ecosystems, the former in thecerrado woodlands, and the latter in gallery forests of the Guaporé grasslands. The results of the surveys also indicate thatC. brunneus has a more restricted distribution in southern Rondônia than was previously thought, whereasC. moloch is more widespread. However, the ecological factors that determine species distribution in the south of the state remain unclear on the basis of the available data. All species were observed in small social groups of no more than five individuals, which are typical of the genus, generally in the middle and lower forest strate.
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Ferrari, S.F., Iwanaga, S., Messias, M.R. et al. Titi monkeys (Callicebus spp., Atelidae: Platyrrhini) in the Brazilian state of Rondônia. Primates 41, 229–234 (2000). https://doi.org/10.1007/BF02557805
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DOI: https://doi.org/10.1007/BF02557805