Chimpanzee

Chimps take over an abandoned logging camp: Integrated behavioral enrichment at the Los Angeles Zoo

The chimps can insert sticks [into the logs] to push the food items along the inside of the log to a point where they can reach it. The public can watch the action and admire the chimps' dexterity.

Year Published: 1996Animal Type: Chimpanzee, Nonhuman Primate

Citation: Coe, J. C. 1996. Chimps take over an abandoned logging camp: Integrated behavioral enrichment at the Los Angeles Zoo. The Shape of Enrichment 5(4), 10-11.

Unpredictable ropes and fire

Chimpanzees had a preference for ropes that responded in unpredictable ways.

Year Published: 1996Topics: Environmental EnrichmentAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Chamove, A. S. 1996. Unpredictable ropes and fire. The Shape of Enrichment 5(2), 1-3.

Hierarchy of social “”friendship”” and hierarchy of social dominance in captive chimpanzees (Pan troglodytes)

Year Published: 1996Animal Type: Chimpanzee, Nonhuman Primate

Citation: Casanova, C. C. N., Garcia, M. S. J. 1996. Hierarchy of social "friendship" and hierarchy of social dominance in captive chimpanzees (Pan troglodytes). Proceedings of the Congress of the International Primatological Society and Conference of the American Society of Primatologists, 329 (Abstract).

Long-term use of television, balls, and mirrors as enrichment for paired and singly caged chimpanzees*

Chimpanzees used televisions, balls, and mirrors for 0.27-1.53% of the observation time after several years of exposure to the enrichment items. Television and ball use were significantly higher than mirror use. *Abstract of this work has been published in: American...

Year Published: 1996Topics: Environmental EnrichmentAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Brent, L., Stone, A. M. 1996. Long-term use of television, balls, and mirrors as enrichment for paired and singly caged chimpanzees*. American Journal of Primatology 39, 139-145.

Managing aggression in multi-male, multi-female chimpanzee groups

We found that wounding aggression was minimal during introductions of females to males or other females, and during male-male introductions of formerly single-caged adolescent and young adult males having long-term prior visual familiarity. Serious wounding occurred during male-male introductions, particularly...

Year Published: 1996Animal Type: Chimpanzee, Nonhuman Primate

Citation: Bloomsmith, M. A., Lambeth, S. P. 1996. Managing aggression in multi-male, multi-female chimpanzee groups. American Zoo and Aquarium Association (AZA) Regional Conference Proceedings, 449-452.

Effects of physical and social environmental enrichment on the behavior of juvenile chimpanzees

No behavioral differences (interaction with physical environment, locomotion, rocking) were found between pair-housed and single-housed animals.

Year Published: 1996Topics: Environmental Enrichment, Social Housing & CompanionshipAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Landon, K., Erwin, J. 1996. Effects of physical and social environmental enrichment on the behavior of juvenile chimpanzees. Proceedings of the Congress of the International Primatological Society and Conference of the American Society of Primatologists, 680 (Abstract).

Anticipation of conflict by chimpanzees

Captive chimpanzees appear to anticipate the occurrence of conflict during feeding by grooming and being in proximity at increased rates during the hours prior to feeding. The effect is more marked when food is clumped than when it is dispersed.

Year Published: 1996Animal Type: Chimpanzee, Nonhuman Primate

Citation: Koyama, N. F., Dunbar, R. I. M. 1996. Anticipation of conflict by chimpanzees. Primates 37(1), 79-86.

Goldfish as enrichment for singly housed chimpanzees

The aquarium [with a single goldfish] was attached to the outside of the chimpanzee's cage ... so that the single-caged subject was able to touch the aquarium but not the fish itself. At the conclusion of this study the authors...

Year Published: 1996Topics: Environmental EnrichmentAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Kessel, A. L., Brent, L. 1996. Goldfish as enrichment for singly housed chimpanzees. Animal Technology 47, 1-8.

Origins of abnormal behaviors in a large sample of chimpanzees (Pan troglodytes)

Associations between behavioral disorders and life history variables were examined.

Year Published: 1996Animal Type: Chimpanzee, Nonhuman Primate

Citation: Fritz, J., Nash, L. T., Howell, S. M. et al. 1996. Origins of abnormal behaviors in a large sample of chimpanzees (Pan troglodytes). Proceedings of the Congress of the International Primatological Society and Conference of the American Society of Primatologists, 765 (Abstract).

Space requirement stipulations for caged non-human primates in the United States: A critical review

Cage space requirements for non-human primates in the United States of America are less than those in European countries. Studies in support of the assumption that the US legal minimum cage size provides adequate space have limited value because they...

Year Published: 1996Topics: HousingAnimal Type: Baboon, Capuchin, Chimpanzee, Lemur, Macaque, Marmoset, Nonhuman Primate, Other Nonhuman Primate, Owl Monkey, Squirrel Monkey, Vervet (African Green Monkey)

Citation: Reinhardt, V., Liss, C., Stevens, C. 1996. Space requirement stipulations for caged non-human primates in the United States: A critical review. Animal Welfare 5(4), 361-372 .