Nonhuman Primate

Destructible toys as enrichment for captive chimpanzees

Nine singly caged chimpanzees were provided with eight different toys made of plastic, vinyl, or cloth one at a time or several at once. The toys remained in the cages an average of three days. The chimpanzees varied greatly in...

Year Published: 1998Topics: Environmental EnrichmentAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Brent, L., Stone, A. M. 1998. Destructible toys as enrichment for captive chimpanzees. Journal of Applied Animal Welfare Science 1, 5-14.

What is enrichment? From the Forest – Duke University Primate Center Newsletter(November), 1

The concept of environmental enrichment is outlined and some enrichment ideas for lemurs presented.

Year Published: 1998Animal Type: Lemur, Nonhuman Primate

Citation: Boyd, H. 1998. What is enrichment? From the Forest - Duke University Primate Center Newsletter(November), 1.

Crowding stress and violent injuries among behaviorally inhibited rhesus macaques

A rhesus group of 36 animals was kept during 6 'warm' months in a large outdoor enclosure, during 6 'cold' months confined in a building. During the 6-month period of confinement stress, a fivefold acceleration in [medically-attended] injury incidence was...

Year Published: 1998Animal Type: Macaque, Nonhuman Primate

Citation: Boyce, W. T., O'Neill-Wagner, P. L., Price, C. S. et al. 1998. Crowding stress and violent injuries among behaviorally inhibited rhesus macaques. Health Psychology 17, 285-289.

Differences in stress reactivity of laboratory macaques measured by heart period and respiratory sinus arrhythmia

Exposure to an unfamiliar technician with capture gloves stimulated cardiac reactivity more strongly than an intense sound. ... Behavior responses to the glove indicated that all subjects consistently perceived this 'ecologically relevant' stimulus as threatening.

Year Published: 1998Animal Type: Macaque, Nonhuman Primate

Citation: Bowers, C. L., Crockett, C. M., Bowden, D. M. 1998. Differences in stress reactivity of laboratory macaques measured by heart period and respiratory sinus arrhythmia. American Journal of Primatology 45, 245-261.

Training rhesus macaques for the pole and collar system

I trained two [adult] male Rhesus over the past year with the pole and collar system and neither of them need the squeeze mechanism to hook their collar. One of them sits still and waits for me to hook his...

Year Published: 1998Topics: Animal TrainingAnimal Type: Macaque, Nonhuman Primate

Citation: Cohen, J. 1998. Training rhesus macaques for the pole and collar system. Primate Enrichment Forum (PEF, March 9, 1998) .

Cognitive enrichment: Problem solving abilities of captive white-bellied spider monkeys

The influence of a puzzle box feeder, as a cognitive enrichment device, on the activity and behaviour patterns of a population of four white-bellied spider monkeys (Ateles belzebuth belzebuth) was studied at Bristol Zoo. ... It is suggested that the...

Year Published: 1998Topics: Environmental EnrichmentAnimal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Citrynell, P. 1998. Cognitive enrichment: Problem solving abilities of captive white-bellied spider monkeys. Primate Eye 66, 16-17.

The menstrual cycle of the spider monkey (Ateles geoffroyi)

The [10] spider monkeys live in a large outdoor cage. Four of the five females were trained to enter a small cage attached to the door of their enclosure and to allow a cotton swab to be introduced in the...

Year Published: 1998Animal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Hernandes-Lopez, L., Mayagoitia, L., Esquivel-Lacroix, C. et al. 1998. The menstrual cycle of the spider monkey (Ateles geoffroyi). American Journal of Primatology 44, 183-195.

Grooming-contact cages promote affiliative social interaction in individually housed adult baboons

Pair compatibility was 7/11 for female/female pairs, 3/3 for female/male pairs.

Year Published: 1998Topics: Social Housing & CompanionshipAnimal Type: Baboon, Nonhuman Primate

Citation: Crockett, C. M., Heffernan, K. S. 1998. Grooming-contact cages promote affiliative social interaction in individually housed adult baboons. American Journal of Primatology 45, 176 (Abstract).

Environmental enrichment thwarted: Food accessibility and activity levels in captive Western lowland gorillas (Gorilla gorilla gorilla)

Clearly, not all enrichment efforts [food diced into small pieces, food elevated off the substrate], however well-intentioned, succeed as expected.

Year Published: 1998Animal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Hemphill, J., McGrew, W. C. 1998. Environmental enrichment thwarted: Food accessibility and activity levels in captive Western lowland gorillas (Gorilla gorilla gorilla). Der Zoologische Garten 68, 381-394.

Psychological well-being of captive nonhuman primates

Merely increasing cage size has not been associated with meaningful improvements in psychological well-being among singly housed macaques. Environmental change, such as being moved into a new room, disturbs monkeys, as demonstrated by appetite suppression, disruption of the normal activity...

Year Published: 1998Topics: Husbandry & Management, Social Housing & CompanionshipAnimal Type: Macaque, Nonhuman Primate

Citation: Crockett, C. M. 1998. Psychological well-being of captive nonhuman primates. In: Second Nature - Environmental Enrichment for Captive Animals. Shepherdson, D. H., Mellen, J. D., Hutchins, M. (eds), 129-152. Smithsonian Institution Press, Washington, DC.