Peruvian Red Uakaris (Cacajao calvus ucayalii) Are Not Flooded-Forest Specialists

Eckhard W. Heymann, Rolando Aquino

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


In the literature, particularly in primatological books, the Peruvian red uakari (Cacajao calvus ucayalii) is generally considered as a species that is specialized on living in flooded forest, despite existing evidence to the contrary. Here we review all available information on habitats where Cacajao calvus ucayalii have been observed. Most sightings are from terra firme, including palm swamps, or from mixed habitats, including terra firme and flooded forest. Therefore, we conclude that the species is not a flooded-forest specialist, but is flexible in its habitat requirements and generally uses terra firme forests or a mixture of habitats. Proper recognition of habitat requirements is important for understanding the ecoethological adaptations of a species and for appropriate conservation measures. © 2010 The Author(s).
Original languageAmerican English
Pages (from-to)751-758
Number of pages8
JournalInternational Journal of Primatology
StatePublished - 1 Jan 2010


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