Nonhuman Primate

The effect of group size on group cohesion and social behavior in captive western lowland gorillas (Gorilla g. gorilla)

Study subjects included 5 adult males and 16 adult females. A highly significant interaction between group size and sex on the frequency of affiliation, tension, submission, sexual behavior, and social proximity was found. There was no significant interaction effect on...

Year Published: 2001Animal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Cooper, J. 2001. The effect of group size on group cohesion and social behavior in captive western lowland gorillas (Gorilla g. gorilla). American Journal of Primatology 54(Supplement), 94-95 (Abstract).

A successful treatment of a stress-induced behavioural disorder in Geoffroy’s tufted-ear marmoset, Callithrix geoffroyi, at the Reserve Africaine de Sigean

A combination of daily oral administration [on a cake] of a neurolepic [chlorpromazine] and provision of visual barriers cured a male from self-injurious behavior [at base of tail] and resulted in complete wound healing after 40 days. The self-mutilation behaviour...

Year Published: 2001Animal Type: Marmoset, Nonhuman Primate

Citation: Leroy, E., Bilbaut, M., Gautier, Y. et al. 2001. A successful treatment of a stress-induced behavioural disorder in Geoffroy's tufted-ear marmoset, Callithrix geoffroyi, at the Reserve Africaine de Sigean. Folia Primatologica 72, 122-123. (Primate Meeting Abstract)

Group-housing subadult male cynomolgus macaques in a pharmaceutical environment

A carefully designed, successful group-formation and group-housing protocol of five 3.5+ years old previously single-caged cynos is described in detail. Not only can the social complexity of the animals' interactions be increased, but also routine tasks can be accomplished with...

Year Published: 2001Animal Type: Macaque, Nonhuman Primate

Citation: Hartner, M. K., Hall, J., Penderhest, J. et al. 2001. Group-housing subadult male cynomolgus macaques in a pharmaceutical environment. Lab Animal 30(8), 53-57.

The use of positive reinforcement techniques with chimpanzees for enhanced care and welfare

Training is teaching. Teaching in a positive reinforcement-based system relies on gaining the voluntary cooperation of the chimpanzees during procedures, such as injection, blood collection, auscultation or urine sampling, or husbandry-related situations such as cooperative feeding. Several positive reinforcement training...

Year Published: 2001Animal Type: Chimpanzee, Nonhuman Primate

Citation: Laule, G. , Whittaker, M. 2001. The use of positive reinforcement techniques with chimpanzees for enhanced care and welfare. In: Special Topics in Primatology Volume 2 - The Care and Management of Captive Chimpanzees. Brent, L. (ed.), 242-266. The American Society of Primatologists, San Antonio, TX.

Baseball Puzzle Feeder

Utilizing the seasonal, kids' toys of Spring, these puzzle feeders [attached with a chain on the outside of the cage] are made out of plastic baseballs found at your local discount stores. They are VERY inexpensive (2 for $.97!), easy...

Year Published: 2001Topics: Environmental EnrichmentAnimal Type: Baboon, Nonhuman Primate

Citation: Hartley, D. 2001. Baseball Puzzle Feeder. Primate Enrichment Network (PEN), Item #: A 115.

Control over videotape enrichment for socially housed chimpanzees: Subsequent challenge tests

The lower expression of stress-related behaviors by chimpanzees that took advantage of the opportunity to control the videotape apparatus implies that exerting control over the environment may have a generalized effect by lessening disturbance caused by mildly challenging situations.

Year Published: 2001Topics: Environmental EnrichmentAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Lambeth, S. P., Bloomsmith, M., Baker, K. et al. 2001. Control over videotape enrichment for socially housed chimpanzees: Subsequent challenge tests. American Journal of Primatology 54(Supplement), 62-63 (Abstract).

Eight years of environmental enrichment for Adelaide Zoo’s adult male orangutan

Year Published: 2001Animal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Harper, P. 2001. Eight years of environmental enrichment for Adelaide Zoo's adult male orangutan. Australian Primatology 15(1), 15-23.

Banana Foraging Puzzle

The banana foraging puzzle is a small PVC-pipe [attached outside of the cage] with holes which promotes time-consuming feeding/foraging when stuffed with a banana.

Year Published: 2001Topics: Environmental EnrichmentAnimal Type: Nonhuman Primate

Citation: Lambeth, S. P. 2001. Banana Foraging Puzzle. Primate Enrichment Network (PEN), Item #: A105.

Affiliative social contagion in captive chimpanzees (Pan troglodytes): The happy neighbor effect

Both studies found a significant positive correlation between grooming in the focal group and grooming vocalizations in neighboring social groups (p < 0.01). Results suggest grooming vocalizations may be a mechanism for social contagion in chimpanzees. Research continues to test...

Year Published: 2001Animal Type: Chimpanzee, Nonhuman Primate

Citation: Fritz, J., Klein, C., Chambers, C. et al. 2001. Affiliative social contagion in captive chimpanzees (Pan troglodytes): The happy neighbor effect . American Journal of Primatology 54(Supplement), 45 (Abstract).

A roll in the hay: good clean play

The provision of hay as enrichment significantly decreased the frequency of fecal smearing.

Year Published: 2001Topics: Abnormal/Problematic Behavior, Environmental EnrichmentAnimal Type: Nonhuman Primate

Citation: Lambeth, S. P. 2001. A roll in the hay: good clean play. Tech Talk [The Newsletter for Laboratory Animal Science Technicians] 6(4), 2.