Geographic distribution and possible taxonomic distinction of Callicebus torquatus populations (Pitheciidae: Primates) in Peruvian Amazonia

Rolando Aquino, Wagner Terrones, Fanny Cornejo, Eckhard W. Heymann

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

Population densities of yellow-handed titi monkey (Callicebus torquatus) were estimated using transect census methods. Densities were 2.8 individuals/km2 in the upper Rio Itaya basin and 2.5 individuals/km2 in the lower Rio Algodón basin. Group size varied from two to five individuals, with an average of 2.9 individuals per group at the Rio Itaya. Groups were generally composed of two adults, probably the reproductive pair, with progeny from one to three previous birth seasons. Although the Rio Itaya population is phenotypically identical to populations from the rivers Nanay and Tigre, it differs from population on the rivers Napo and Putumayo. This suggests the existence of two disjunct populations of C. torquatus in Peruvian Amazonia whose taxonomic status warrants further examination.
Original languageAmerican English
Pages (from-to)1181-1186
Number of pages6
JournalAmerican Journal of Primatology
Volume70
Issue number12
DOIs
StatePublished - 1 Jan 2008

Keywords

  • Callicebus torquatus
  • Geographic distribution
  • Group size
  • Social organization
  • Taxonomy

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