Nonhuman Primate

Using training to moderate chimpanzee aggression during feeding

Positive reinforcement training techniques were applied to reduce a dominant male chimpanzee's aggression and chasing during meals. Verbal commands and food reinforcers were used to train him to sit and remain seated while other group members received and ate their...

Year Published: 1994Animal Type: Chimpanzee, Nonhuman Primate

Citation: Bloomsmith, M. A., Laule, G. E., Alford, P. L. et al. 1994. Using training to moderate chimpanzee aggression during feeding. Zoo Biology 13, 557-566.

Results of providing swings to individually housed rhesus monkeys (Macaca mulatta)

The single-housed adult test subjects manipulated the swings but showed little inclination to actually use them for swinging.

Year Published: 1994Topics: Environmental EnrichmentAnimal Type: Macaque, Nonhuman Primate

Citation: Dexter, S. L., Bayne, K. 1994. Results of providing swings to individually housed rhesus monkeys (Macaca mulatta). Laboratory Primate Newsletter 33(2), 9-12.

Environmental Enrichment in Captive Primates: A Survey and Review [Dissertation]

The lives of captive primates everywhere could be enhanced by developing programmes by which keepers could gain greater access to published information and freedom to use this in their daily work, particularly in the care of arboreal primates.

Year Published: 1994Animal Type: Nonhuman Primate

Citation: Dickie, L. A. 1994. Environmental Enrichment in Captive Primates: A Survey and Review [Dissertation]. University of Cambridge, Cambridge, UK.

Use of positive reinforcement training in the management of species for reproduction

Summary of successful training programs related to reproduction.

Year Published: 1994Animal Type: Chimpanzee, Nonhuman Primate, Other Nonhuman Primate

Citation: Desmond, T., Laule, G. E. 1994. Use of positive reinforcement training in the management of species for reproduction. Zoo Biology 13, 471-477.

Physical environment and its influence on behaviour in captive common marmosets

Year Published: 1994Animal Type: Marmoset, Nonhuman Primate

Citation: Dettling, A., Pryce, C. 1994. Physical environment and its influence on behaviour in captive common marmosets. European Marmoset Research Group Newsletter 3, 2 (Abstract).

Sex differences in compatibility of pair-housed adult longtailed macaques

Prefamiliarized partners were paired without ascertaining that they had established their dominance-subordination relationship. Newly formed pairs were separated for 17 hours and subsequently reintroduced daily during a study period of 23 days. Under these extraordinary circumstances male/male pairs were less...

Year Published: 1994Topics: Social Housing & CompanionshipAnimal Type: Macaque, Nonhuman Primate

Citation: Crockett, C. M., Bowers, C. L., Bowden, D. M. et al. 1994. Sex differences in compatibility of pair-housed adult longtailed macaques. American Journal of Primatology 32, 73-94.

Challenging conventional wisdom for housing monkeys

Our research indicates that the minimum cage size does provide adequate space for the monkeys that we studied [adult long-tailed macaques of both sexes]. Our studies [with barren cages] also lead us to the conclusion that spending millions of dollars...

Year Published: 1994Animal Type: Macaque, Nonhuman Primate

Citation: Crockett, C. M., Bowden, D. M. 1994. Challenging conventional wisdom for housing monkeys. Lab Animal 24(2), 29-33.

Reproductive performance in captive breeding groups of Macaca mulatta: Gang cages versus outdoor corrals

Overall, outdoor corral housed animals had higher reproductive performance in comparison to gang-cage housed animals (further analysis showed that this was not a result of differential age structures or virological status). We thought that this may be a result of...

Year Published: 1994Animal Type: Macaque, Nonhuman Primate

Citation: Conlee, K. M., Taub, D. M., Mehlman, P. T. 1994. Reproductive performance in captive breeding groups of Macaca mulatta: Gang cages versus outdoor corrals. American Journal of Primatology 33, 203 (Abstract).

Object manipulation in Lisbon Zoo chimpanzees: A contribution to the discussion of the psychological well-being in captive animals

The provision of manipulable objects [plastic bricks, items of clothing] led to a significant reduction of aggression, visitor-directed and self-directed behaviors and activity.

Year Published: 1994Animal Type: Chimpanzee, Nonhuman Primate

Citation: Gaspar, A. D. 1994. Object manipulation in Lisbon Zoo chimpanzees: A contribution to the discussion of the psychological well-being in captive animals. Analise Psicologica 4, 27-40.

Behavioral changes in chimpanzees following a move to a larger facility

After the move to the larger, structurally enriched facility, there was an increase in activity, a decrease in stereotypical behaviour, and an increase in threat behavior.

Year Published: 1994Animal Type: Chimpanzee, Nonhuman Primate

Citation: Jensvold, M. L. J., Fouts, R. S. 1994. Behavioral changes in chimpanzees following a move to a larger facility. American Journal of Primatology 33, 218 (Abstract).