Nonhuman Primate

A comparative study of a group of colobus monkeys Colobus guereza matschiei before and after enrichment of their captive environment

The effect of the enrichment devices [barklitter, branches, basket filled with 'goodies', etc.] applied on the colobus exhibit could be seen both in a totally higher score for 'activity' [29.3%], and a higher amount of social interactions [16.5%].

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

Citation: Spendrup, S. , Larsson, H. O. 1998. A comparative study of a group of colobus monkeys Colobus guereza matschiei before and after enrichment of their captive environment. In: Proceedings of the International Conference on Environmental Enrichment. Hare, V. J. , Worley, E. (eds), 219-229. The Shape of Enrichment, San Diego, CA.

Enrichment of a blind monkey

The [blind] male was more interested in 'finishing the puzzle' than eating the food in it. He often dropped the food he retrieved on the ground and ate it later. ... It may take a little more thought to create...

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

Citation: Pastorello, L. 1998. Enrichment of a blind monkey. In: Proceedings of the International Conference on Environmental Enrichment. Hare, V. J. , Worley, E. (eds), 374-379. The Shape of Enrichment, San Diego, CA.

Close proximity of the heterosexual partner reduces the physiological and behavioral consequences of novel-cage housing in black tufted-ear marmosets (Callithrix kuhli)

Close proximity of the heterosexual partner reduces the physiological and behavioral consequences of novel-cage housing.

Year Published: 1998Animal Type: Marmoset, Nonhuman Primate

Citation: Smith, T. E., McGreer-Whitworth, B., French, J. A. 1998. Close proximity of the heterosexual partner reduces the physiological and behavioral consequences of novel-cage housing in black tufted-ear marmosets (Callithrix kuhli). Hormones and Behavior 34, 211-222.

Planting trees in an outdoor compound of chimpanzees for an enriched environment

We have been planting trees of different species in this compound for environmental enrichment since 1993. ... Presently, most of the trees planted are still growing well. ... Grasses also grew naturally in the compound and chimpanzees spent about 90%...

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

Citation: Ochiai, O. T. , Matsuzawa, T. 1998. Planting trees in an outdoor compound of chimpanzees for an enriched environment. In: Proceedings of the International Conference on Environmental Enrichment. Hare, V. J. , Worley, E. (eds), 355-364. The Shape of Enrichment, San Diego, CA.

Physical Examination of a Trained Adult Male Orangutan (Videotape with commentary)

The videotape demonstrates very clearly how the author examines an injured hand of a well-trained adult male orangutan in the animal's home enclosure. The orangutan cooperates voluntarily.

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

Citation: Shumaker, R. W. 1998. Physical Examination of a Trained Adult Male Orangutan (Videotape with commentary). In: Workshop - Advances in Primate Training. Twenty-First Annual Meeting of the American Society of Primatologists. O'Neill-Wagner, P. L. , Stone, A. (eds). National Zoological Park, Washington, DC 20008, [not yet published].

Pair-housing male Macaca fascicularis: A Summary

Discussion of different pair formation techniques for adult male long-tailed macaques.

Year Published: 1998Animal Type: Macaque, Nonhuman Primate

Citation: Seelig, D. 1998. Pair-housing male Macaca fascicularis: A Summary. Laboratory Primate Newsletter 37(3), 14-16.

Effects of dominance status and environmental enrichment on cell-mediated immunity in rhesus macaques

These data demonstrate that dominance rank, an important psychological factor, affects immune response in a stable social [group-housing] setting. Findings suggested that inanimate enrichment may subtly affect cell-mediated immune response.

Year Published: 1998Animal Type: Macaque, Nonhuman Primate

Citation: Schapiro, S. J., Nehete, P. N., Perlman, J. E. et al. 1998. Effects of dominance status and environmental enrichment on cell-mediated immunity in rhesus macaques. Applied Animal Behaviour Science 56, 319-332.

Enrichment activity budget: The effect of object rotation

Object rotation and presentation of both temporary [paper, magazines, raisin boards, cardboard boxes, etc.] and semitemporary [nets, climbing structures, straw, grass, etc.] objects is emphasized

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

Citation: Sanz, C., Blicher, A., Dalke, K. et al. 1998. Enrichment activity budget: The effect of object rotation. ChimpanZoo Conference Proceedings, 78 (Abstract).

Enrichment object use

The results of this study emphasize the importance of temporary object rotation and presentation of both temporary [paper, magazines, raisin boards, cardboard boxes, etc.] and semitemporary [nets, climbing structures, straw, grass, etc.] objects to captive chimpanzee environments.

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

Citation: Sanz, C., Blicher, A., Dalke, K. et al. 1998. Enrichment object use. Friends of Washoe 18(1/2), 9-15.

Effects of selected behavioral enrichment devices on behavior of western lowland gorillas (Gorilla gorilla gorilla)

Devices used included cardboard boxes containing food items [and straw], paper bags containing food items [and straw], burlap rags [containing straw], and willow and maple browse. The enrichment devices increased foraging, social play, and solitary play behaviors [in group-housed animals]...

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

Citation: Rooney, M. B., Sleeman, J. 1998. Effects of selected behavioral enrichment devices on behavior of western lowland gorillas (Gorilla gorilla gorilla). Journal of Applied Animal Welfare Science 1, 339-351.