International Journal of Primatology

, Volume 26, Issue 4, pp 949–969 | Cite as

Diet, Habitat Selection and Natural History of Cacajao melanocephalus ouakary in Jaú National Park, Brazil1

  • Adrian A. Barnett
  • Carol Volkmar de Castilho
  • Rebecca L. Shapley
  • Antenor Anicácio
Article

Abstract

We studied golden-backed uacaris, (Cacajao melanocephalus ouakary) in the late-wet season of 1999 and in the mid-dry season of 2000 in Jaú National Park (JNP), Brazil. Additional observations were taken by other scientists working in JNP. Group counts range from 2 to 30 in the wet season and from 1 to > 100 in the dry. In the wet season, we recorded uacaris only in flooded forests (igapó). During the dry season they were in igapó, campinarana, and terra firme forests. We supplemented observations via interviews with local informants on seasonal use of the forest types and of particular small patches of different habitat types that exhibit high temporal patchiness in fruit availability. We recorded a total of 13 food plant species (dry season, 4; flooded season, 9), and a further 55 were provided by interviews. We noted the physical dimensions and hardness of 26 fruit species. Despite accepted specializations of the uakaris on hard unripe fruit, we recorded incidents of insectivory and folivory. Patterns of food availability, and therefore the seasonal habitat-use patterns by golden-backed uacaris, appear to be more complex than previously realized.

Keywords

Cacajao melanocephalus diet igapó seasonality 

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Copyright information

© Springer Science + Business Media, Inc. 2005

Authors and Affiliations

  • Adrian A. Barnett
    • 1
    • 2
  • Carol Volkmar de Castilho
    • 3
  • Rebecca L. Shapley
    • 4
  • Antenor Anicácio
    • 5
    • 6
  1. 1.Centre for Research in Evolutionary AnthropologySchool of Life Sciences, Roehampton UniversityLondonUK
  2. 2.Dept. of AnthropologyCalifornia Academy of SciencesSan FranciscoUSA
  3. 3.Coordenação de Pesquísas em EcologiaInstituto Nacional de Pesquísas da Amaz ôniaManausBrazil
  4. 4.Akodon Ecological ConsultingConcordUSA
  5. 5.Seringalzinho village, Jaú National ParkAmazonasBrazil
  6. 6.Fundação Vitória AmazônicaManausBrazil

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