Chimpanzee

Inhibition of social behavior in chimpanzees under high-density conditions

The groups were observed under two conditions: 1) when they had access to both the indoor and outdoor sections of their enclosures; 2) during cold days when they were locked into the indoor runs, which reduced the available space by...

Year Published: 1997Animal Type: Chimpanzee, Nonhuman Primate

Citation: Aureli, F., de Waal, F. B. M. 1997. Inhibition of social behavior in chimpanzees under high-density conditions. American Journal of Primatology 41, 213-228.

Human interaction as enrichment for captive chimpanzees: A preliminary report

These results suggest that simple, unstructured affiliation between humans and chimpanzees has a powerful impact on well-being, promoting activity and relaxed conspecific interactions and ameliorating undesirable behaviors [e.g., abnormal behaviors].

Year Published: 1997Topics: Environmental Enrichment, Human-Animal InteractionAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Baker, K. C. 1997. Human interaction as enrichment for captive chimpanzees: A preliminary report. American Journal of Primatology 42, 92 (Abstract).

Straw and forage material ameliorate abnormal behaviors in adult chimpanzees

In an [successful] effort to reduce abnormal behaviors, especially regurgitation and reingestion, and promote higher activity levels [locomoting and playing], straw and scattered forage material were added to the enclosures of 13 indoor-housed chimpanzees living in pairs and trios.

Year Published: 1997Animal Type: Chimpanzee, Nonhuman Primate

Citation: Baker, K. C. 1997. Straw and forage material ameliorate abnormal behaviors in adult chimpanzees. Zoo Biology 16, 225-236.

Behavioral indicators of anxiety: an empirical test in chimpanzees

Behavioural, pharmacological, and physiological evidence supports an association between displacement activities and anxiety in macaques. Information is scarce in other primate and non-primate species. This study contributes to the understanding of the relation between displacement activities and emotional states by...

Year Published: 1997Animal Type: Chimpanzee, Nonhuman Primate

Citation: Baker, K. C., Aureli, C. F. 1997. Behavioral indicators of anxiety: an empirical test in chimpanzees. Behaviour 134, 1031-1050.

Evaluation of introduction procedures in captive chimpanzees

165 dyadic introduction events were analysed. This information may have important consequences for how we view group formation, and factors such as previous experience and aggression may be less important than the method of introduction and the level of submissive...

Year Published: 1997Animal Type: Chimpanzee, Nonhuman Primate

Citation: Brent, L., Kessel, A. L., Barrera, H. 1997. Evaluation of introduction procedures in captive chimpanzees. Zoo Biology 16, 335-342.

Surplus chimpanzee crisis: Planning for the long-term needs of research chimpanzees

Chimp Haven's goal is to provide a low-cost, effective alternative to standard laboratory housing, by furnishing large, enriched, and permanent housing for [retired] chimpanzees living in large groups.

Year Published: 1997Animal Type: Chimpanzee, Nonhuman Primate

Citation: Brent, L., Butler, T. M., Haberstroh, J. 1997. Surplus chimpanzee crisis: Planning for the long-term needs of research chimpanzees. Lab Animal 26(9), 36-39.

Behavioral management of nonhuman primates in a laboratory environment

Behavioral management [environmental enrichment, animal training, behaviourally appropriate operating procedures ] of chimpanzees and baboons at the Southwest Foundation for Biomedical Research is summarized.

Year Published: 1997Topics: Animal Training, Environmental EnrichmentAnimal Type: Baboon, Chimpanzee, Nonhuman Primate

Citation: Brent, L. 1997. Behavioral management of nonhuman primates in a laboratory environment. In: Proceedings on the International Conference on Environmental Enrichment. Holst, B. (ed), 149-163. Copenhagen Zoo, Frederiksberg, DK.

Comparing two types of human interaction as enrichment for chimpanzees

Training increased social behavior of group-housed animals during and after sessions.

Year Published: 1997Topics: Environmental Enrichment, Human-Animal InteractionAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Bloomsmith, M. A., Lambeth, S. P., Stone, A. M. et al. 1997. Comparing two types of human interaction as enrichment for chimpanzees. American Journal of Primatology 42, 96 (Abstract).

A gravity roulette feeder for chimpanzees

A few chimps will use sticks or branches to knock the enrichment items down the hole in the platform and then climb down and get the treats at the openings. Sometimes it works - sometimes it doesn't, because other chimps...

Year Published: 1997Topics: Environmental EnrichmentAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Barnett, C. 1997. A gravity roulette feeder for chimpanzees. The Shape of Enrichment 6(2), 11.

Colored light as environmental enrichment for captive chimpanzees (Pan troglodytes)

While colored lights did not result in increased activity levels, and had little effect on species-typical behaviors, cool spectrum lights (i.e., green colored light) mitigated anxiety, in general, and pacing, in particular.

Year Published: 1997Animal Type: Chimpanzee, Nonhuman Primate

Citation: Fritz, J., Howell, S. M., Schwandt, M. L. 1997. Colored light as environmental enrichment for captive chimpanzees (Pan troglodytes). Laboratory Primate Newsletter 36(2), 1-4.