Advancing the study of South American primates

Developments in Primatology: Progress and Prospects, 2006

2009

International Journal of Primatology, 2007

A history of some details the author's research in eastern Colombia is presented for the last 27 years since 1977 in Vichada, Vaupés, Amazonas and most recently in Meta up to the present. Some comments are made about each research project in the context of primatology and some hypotheses and ideas of the author are presented about species, populations and other groups of mammals in the country. Especially discussed are aspects of Cebus albifrons and its relation to Sapajus (=Cebus) apella (a new taxonomic change) and the primates Calli cebus lugens, Alouatta seniculus, Lagothrix lagothricha, Cacajao melanocephalus, Callicebus caquetensis and Callicebus ornatus.

Springer eBooks, 2006

This peer-reviewed book series melds the facts of organic diversity with the continuity of the evolutionary process. The volumes in this series exemplify the diversity of theoretical perspectives and methodological approaches currently employed by primatologists and physical anthropologists. Specific coverage includes: primate behavior in natural habitats and captive settings; primate ecology and conservation; functional morphology and developmental biology of primates; primate systematics; genetic and phenotypic differences among living primates; and paleoprimatology.

A female golden-faced saki, Pithecia pithecia chrysocephala, from the Central Amazon. Photo by Russell A. Mittermeier.

2003

Photo of a teaching display featuring pygmy marmosets, Cebuella pygmaea, used for environmental education in northeastern Ecuador.

International Zoo Yearbook, 2012

The current taxonomy of the New World primates (Platyrrhini) indicates c. 152 species (i.e. 204 species and subspecies) in 20 genera and four or five families. For various reasons, the number of taxa has increased considerably in the last 30 years; the adoption of the phylogenetic species concept, cytogenetic and molecular genetic studies, and the discovery of 31 new species and subspecies, among them. Here, we provide a summary of some of the key changes and developments in the taxonomy of these monkeys since the International Zoo Yearbook's previous special section on New World primates in 1982 (Volume 22).

2014

Squirrel monkeys (Saimiri collinsi) are seasonal breeders that live in large social groups in which females are dominant to males. Females have one infant per year, and the nursing period lasts six to eight months. Preliminary observations in the wild indicated that during the mating period (eight weeks: July and August in our population), the infants show agonism directed at males who approach their mothers. This directed sexual interference by infants has rarely been reported for neotropical primates. Our study reports observations in a natural population of Saimiri collinsi with the aim of describing the social behavior of infants during the breeding season, especially with regard to adult males in the group. Infants of both sexes were observed during three mating periods (2011, 2012, 2013), to test hypotheses about the possible function of infant harassment directed at adult males. The behavior of infants (variables: activity and nearest neighbor) was sampled by the focal animal...