Nonhuman Primate

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.

Cage-cleaning: Interest or intrusion?

After the woodchip litter was removed and replaced the animals' behavior was similar to that occurring during enrichment. It is likely that for arboreal monkeys, changes to their floor has no negative effect because the floor is a rarely-used part...

Year Published: 1996Topics: Environmental Enrichment, Husbandry & ManagementAnimal Type: Nonhuman Primate

Citation: Chamove, A. S. 1996. Cage-cleaning: Interest or intrusion? Australian Primatology 11(1), 2-5.

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).

Engineering a rational approach to primate space requirements

The subjects spent significantly more time on the front half of the perch in the standard cage. ... On the basis of this observation, we highly recommend that solid-sided cages be placed in rooms such that the perches are installed...

Year Published: 1996Animal Type: Nonhuman Primate

Citation: Crockett, C. M., Yamashiro, J., DeMers, S. et al. 1996. Engineering a rational approach to primate space requirements. Lab Animal 25(9), 44-47.

Formation of outdoor multimal breeding groups of rhesus macaques

Gradually forming new breeding groups resulted in 0.27 severe wounds per individual per year; rapidly forming new groups resulted in twice as much wounding.

Year Published: 1996Animal Type: Macaque, Nonhuman Primate

Citation: Conlee, K. M., Lilly, A. A., Taub, D. M. 1996. Formation of outdoor multimal breeding groups of rhesus macaques. Proceedings of the Congress of the International Primatological Society and Conference of the American Society of Primatologists, 671 (Abstract).

Food puzzle feeders: Effects on self-biting and stereotypy in individually housed monkeys

Subjects were observed not only when the food puzzle feeder had just been filled in the early morning but at several other time points throughout the day. ... There was no effect on self-aggression; however, a reduction in active stereotypic...

Year Published: 1996Animal Type: Nonhuman Primate

Citation: Kinsey, J. H., Jorgensen, M. J., Platt, D. M. et al. 1996. Food puzzle feeders: Effects on self-biting and stereotypy in individually housed monkeys. Proceedings of the Congress of the International Primatological Society and Conference of the American Society of Primatologists, 683 (Abstract).

Group formation of female pigtail macaques (Macaca nemestrina)

Eight adult females and one adult male were moved from individual cages and simultaneously introduced. The animals showed conspicuous physiological stress responses though they established a dominance hierarchy with no serious fighting and a complete absence of wounding.

Year Published: 1996Animal Type: Macaque, Nonhuman Primate

Citation: Gust, D. A., Gordon, T. P., Wilson, M. E. et al. 1996. Group formation of female pigtail macaques (Macaca nemestrina). American Journal of Primatology 39, 263-273.

The effectiveness of cage toys in reducing abnormal behavior in individually housed pigtail macaques

Abnormal behavior accounted for 24% [!] of the time during baseline observations. The repeated provision of several toys resulted in a significant decrease in abnormal behaviors during the first 30 minutes. The new toys were used for 27% of the...

Year Published: 1996Animal Type: Macaque, Nonhuman Primate

Citation: Kessel, A. L., Brent, L. 1996. The effectiveness of cage toys in reducing abnormal behavior in individually housed pigtail macaques. Proceedings of the Congress of the International Primatological Society and Conference of the American Society of Primatologists, 519 (Abstract).

Effect of companions in modulating stress associated with new group formation in juvenile rhesus macaques

To determine if the presence of one or more familiar peers buffers the physiological effect of a stressor, 10 juvenile rhesus monkeys were removed from their natal group and placed together to form a new peer group. Six of the...

Year Published: 1996Animal Type: Macaque, Nonhuman Primate

Citation: Gust, D. A., Gordon, T. P., Brodie, A. R. et al. 1996. Effect of companions in modulating stress associated with new group formation in juvenile rhesus macaques. Physiology and Behavior 59(4-5), 941-945.

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.