Nonhuman Primate

Advanced age influences chimpanzee behavior in small social groups

This study represents a baseline assessment of the relationship between advancing age and behavior among male and female chimpanzees living in pairs and trios in indoor/outdoor runs. ... Old chimpanzees showed less aggression and moved about their enclosures less. Old...

Year Published: 2000Animal Type: Chimpanzee, Nonhuman Primate

Citation: Baker, K. C. 2000. Advanced age influences chimpanzee behavior in small social groups. Zoo Biology 19, 181-191.

Environmental enhancement: Policy, plans, and perspective

The goal of this roundtable is for individuals with varying backgrounds .... to exchange perspectives and strategies for fulfilling the requirements of the USDA's policy. We can employ this new policy as an opportunity to evaluate the advances in behavioral...

Year Published: 2000Animal Type: Nonhuman Primate

Citation: Baker, K. C. 2000. Environmental enhancement: Policy, plans, and perspective. American Journal of Primatology 51(Supplement), 35-36 (Abstract).

Social responses to self-image versus reflections of conspecifics in male rhesus macaques (Macaca mulatta)

Singly housed rhesus manipulate their enrichment toys more when they have visual access to others via mirrors than when they do not.

Year Published: 2000Animal Type: Macaque, Nonhuman Primate

Citation: Baker, K. C. 2000. Social responses to self-image versus reflections of conspecifics in male rhesus macaques (Macaca mulatta). American Journal of Primatology 51(sSupplement), 39 (Abstract).

I’m forever blowing bubbles!

The chimpanzees are fascinated with the bubbles floating .... run around sticking out their tongues, much as a child collecting snowflakes, and attempting to catch them - a bit bewildered as it disappears.

Year Published: 2000Topics: Environmental EnrichmentAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Fritz, J. 2000. I'm forever blowing bubbles! The Newsletter 11(3), 1-2.

Influence of a puzzle feeder on rhesus macaque behaviour: learning phase

Animals who had learned how to use the puzzle showed a reduction in stereotypies including saluting. Those who did not learn how to use the puzzle showed enhanced stereotypical behavior including self-injurious behavior.

Year Published: 2000Animal Type: Macaque, Nonhuman Primate

Citation: Florence, G., Riondet, L. 2000. Influence of a puzzle feeder on rhesus macaque behaviour: learning phase. Folia Primatologica 71(4), 256-257. (Primate Meeting Abstract)

Artificial turf foraging boards as environmental enrichment for pair-housed female squirrel monkeys

Five groups of pair-housed female squirrel monkeys were videotaped the week prior to, the week following, and for 2 weeks during the enrichment phase, when treat-enhanced boards were provided for 2 h daily. During the first 30 min of daily...

Year Published: 2000Animal Type: Nonhuman Primate, Squirrel Monkey

Citation: Fekete, J. M., Norcross, J. L., Newman, J. D. 2000. Artificial turf foraging boards as environmental enrichment for pair-housed female squirrel monkeys. Contemporary Topics in Laboratory Animal Science 39(2), 22-26.

Wooden objects for enrichment: A discussion

It seems that there is a general consensus that wooden objects provide inexpensive, safe, long-term and effective stimulation for the expression of non-injurious, species-typical behaviors such as perching, gnawing, gouging, manipulating and playing without causing health and hygienic problems.

Year Published: 2000Topics: Environmental EnrichmentAnimal Type: Nonhuman Primate

Citation: Eckert, K., Niemeyer, C., Anonymous et al. 2000. Wooden objects for enrichment: A discussion. Laboratory Primate Newsletter 39(3), 1-4.

Formation of a bachelor group: Gorillas at Loro Parque

Successful bachelor group formation protocol is described.

Year Published: 2000Animal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Downman, M. 2000. Formation of a bachelor group: Gorillas at Loro Parque. Gorilla Gazette 14(1), 17-19.

Sleeping site preferences in tufted capuchin monkeys (Cebus apella nigritus)

The sleeping trees share a set of characteristics not found in other trees. ... Our results and those from other studies suggest that predation avoidance is a predominant factor driving sleeping site preferences.

Year Published: 2000Animal Type: Capuchin, Nonhuman Primate

Citation: Di Bitetti, M. S., Vidal, E. M. L., Baldovino, M. C. et al. 2000. Sleeping site preferences in tufted capuchin monkeys (Cebus apella nigritus). American Journal of Primatology 50, 257-274.

Determining the value of social companionship to captive tufted capuchin monkeys (Cebus apella)

To measure the need for social companionship, subjects [6 males, 1 female] were asked to choose between two commodities: food and social companionship. The only time subjects showed a food preference was when they were provided with a social companion...

Year Published: 2000Animal Type: Capuchin, Nonhuman Primate

Citation: Dettmer, E., Fragaszy, D. M. 2000. Determining the value of social companionship to captive tufted capuchin monkeys (Cebus apella). Journal of Applied Animal Welfare Science 3, 393-304.