Nonhuman Primate

Urinary androgen and corticoid levels in captive, male Western lowland gorillas (Gorilla g. gorilla): Age- and social group-related differences.

Animals housed socially (in either a heterosexual or all-male group) had similar corticoid levels, whereas solitary males showed greater corticoid levels than their socially-housed counterparts. The increased levels of corticoids in solitary-housed males suggest this management strategy might not be...

Year Published: 2002Animal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Stoinski, T. S., Czekala, N., Lukas, K. E. et al. 2002 . Urinary androgen and corticoid levels in captive, male Western lowland gorillas (Gorilla g. gorilla): Age- and social group-related differences. American Journal of Primatology 56 , 73-87.

Effects of nutrition enrichment on the activity of a group of red ruffed lemurs (Varecia variegata rubra)

Boxes with food and whole fruits were placed/hung at high levels of the enclosure.

Year Published: 2002Topics: Environmental EnrichmentAnimal Type: Lemur, Nonhuman Primate

Citation: Perbellini, R., Grassi, D., Caltran, E. et al. 2002. Effects of nutrition enrichment on the activity of a group of red ruffed lemurs (Varecia variegata rubra). Folia Primatologica 73(6), 331-332. (Primate Meeting Abstract)

Designing captive environments for apes

Discussion on how patterns of space use can be incorporated to improve exhibit design.

Year Published: 2002Animal Type: Nonhuman Primate

Citation: Stoinski, T. S., Lukas, K. E., Ross, S. R. 2002. Designing captive environments for apes. In: Congress of the International Primatological Society . 170-171 (Abstract). Mammalogical Society of China, Beijing, China.

Behavioral study of occupational feeders for hylobates

White-handed gibbons (two males and two females) and siamang (two females) were studied using eight different occupational feeders. We observed how the two species manipulated the feeders and evaluated their effect on behavior; comparing the occupational feeders to a traditional...

Year Published: 2002Animal Type: Gibbon, Nonhuman Primate, Other Nonhuman Primate

Citation: Pappas, K. 2002. Behavioral study of occupational feeders for hylobates. American Journal of Primatology 57, 40-41 (Abstract).

Training non-human primates to co-operate with scientific procedures in applied biomedical research

The present paper will describe the process introduced in our laboratory for training rhesus monkeys to respond to voice commands in order to facilitate transit to a remote testing location.

Year Published: 2002Animal Type: Macaque, Nonhuman Primate

Citation: Scott, L., Pearce, P. C., Fairhall, S. et al. 2002. Training non-human primates to co-operate with scientific procedures in applied biomedical research. In: Congress of the International Primatological Society . 183 (Abstract). Mammalogical Society of China, Beijing, China.

Minimal restraint chair and muzzle for nonhuman primates

Over 100 animals have been trained to enter and remain calmly in these [specially design restraint chairs] for several hours.

Year Published: 2002Topics: RestraintAnimal Type: Nonhuman Primate

Citation: Scott, D. A., Wallace, T., McLaughlin, M. A. 2002. Minimal restraint chair and muzzle for nonhuman primates. Contemporary Topics in Laboratory Animal Science 41(4), 98 (Abstract).

Positive reinforcement training as a technique to alter non-human primate behavior: Quantitative assessments of effectiveness

We found that positive reinforcement techniques alter the expression of affiliative behavior in group-housed, female rhesus macaques. ... We found a statistically significant reduction in aggression when meals were fed to group-living chimpanzees using a co-operative feeding technique. .... We...

Year Published: 2002Animal Type: Chimpanzee, Macaque, Nonhuman Primate

Citation: Schapiro, S. J., Bloomsmith, M. A., Laule, G. E. 2002. Positive reinforcement training as a technique to alter non-human primate behavior: Quantitative assessments of effectiveness. In: Congress of the International Primatological Society . 181-182 (Abstract). Mammalogical Society of China, Beijing, China.

Effects of social manipulations and environmental enrichment on behavior and cell-mediated immune responses in rhesus macaques

In general, enrichment of the inanimate environment with toys, structures, foraging devices, and/or videotapes increased the amount of species-typical behavior expressed by the monkeys, but did not affect their immune responses. Housing monkeys socially, on the other hand, not only...

Year Published: 2002Topics: Environmental Enrichment, Social Housing & CompanionshipAnimal Type: Macaque, Nonhuman Primate

Citation: Schapiro, S. J. 2002. Effects of social manipulations and environmental enrichment on behavior and cell-mediated immune responses in rhesus macaques. Pharmacology, Biochemistry and Behavior 73, 271-278.

Training macaques to voluntarily co-operate during two common procedures: Blood collection and capture of group-housed animals

Ten male, pair-housed rhesus macaques (Macaca mulatta) and six female, pair-housed stump-tailed macaques (M. arctoides) were successfully trained to actively cooperate during in-homecage venipuncture. Training was based on positive reinforcement with food-treats and vocal praise, consistent firmness, gentleness and patience....

Year Published: 2002Topics: Animal Training, Biological Sampling & Physiological MeasurementAnimal Type: Macaque, Nonhuman Primate

Citation: Reinhardt, V., Buchanan-Smith, H. M., Prescott, M. J. 2002. Training macaques to voluntarily co-operate during two common procedures: Blood collection and capture of group-housed animals. In: Congress of the International Primatological Society . 182-183 (Abstract). Mammalogical Society of China, Beijing, China.

The myth of the aggressive monkey

Captive rhesus macaques are not intrinsically aggressive, but poor husbandry and handling practices can trigger their aggression towards conspecifics and towards the human handler. The statement 'rhesus macaques are so aggressive animals' is probably based on the fact that basic...

Year Published: 2002Topics: Handling, Housing, Husbandry & Management, Social Housing & CompanionshipAnimal Type: Macaque, Nonhuman Primate

Citation: Reinhardt, V. 2002. The myth of the aggressive monkey. Journal of Applied Animal Welfare Science 5(4), 321-330.