Captive Squirrel Monkeys Research Articles

An analysis of subgroup structure and process in a captive squirrel monkey (Saimiri sciureus) colony.

The processes involved in subgroup formation and maintenance were studied in a captive colony of squirrel monkeys (Saimiri sciureus) containing 2 adult males, 6 adult females, 2 infant males, and 1 juvenile male. On two successive occasions, the group was divided in half, placing an adult female from one subgroup with members of the other major subgroup. In both cases the experimental female was not admitted to the adult female huddle group but was accepted into a huddle group with the adult and juvenile males. Grouping tendencies during the 5 weeks of testing are described in terms of spatial cliques, and behavioral interactions are analyzed to identify the processes responsible for subgroup patterns in squirrel monkeys.

Oral excretion of Herpesvirus saimiri in captive squirrel monkeys and incidence of infection in feral squirrel monkeys.

Oral excretion of Herpesvirus saimiri in captive squirrel monkeys and incidence of infection in feral squirrel monkeys.

Adrenal regulation in the wild captive squirrel monkey: a model of chronic stress.

Adrenal regulation in the wild captive squirrel monkey: a model of chronic stress.

Notes on pregnancy, delivery, and infant survival in captive squirrel monkeys

A survey is given on 13 pregnancies in captive squirrel monkeys including 3 reported elsewhere. Observations of sexual behavior suggest a gestation period of 24 to 26 weeks which confirms former estimations. In 8 pregnancies the presentation of the fetus was determined by X-ray and measurements on fetal growth are given. Three deliveries were observed and motion pictures in artificial or infrared light were taken. Behavior and physical changes during pregnancy, and behavior of mother, infant, and group members during delivery and early postnatal period are described. Of the 6 live born infants 4 did not survive the weaning period and 2 have not yet been weaned. Attempts to provide the monkeys with sufficient protein and to eliminate accidents are discussed.

Notes on the Vaginal Cornification Cycle of Captive Squirrel Monkeys

Notes on the Vaginal Cornification Cycle of Captive Squirrel Monkeys