Nonhuman Primate

Changes in nearest-neighbor association in a captive group of Western Lowland gorillas after the introduction of five hand-reared infants

The integration of five hand-reared infants into a group of 5 females and 1 male was successful and without incident. Findings lend strong support to the importance of peer groups and the presence of a silverback male for facilitating the...

Year Published: 1999Animal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: McCann, C. M., Rothman, J. M. 1999. Changes in nearest-neighbor association in a captive group of Western Lowland gorillas after the introduction of five hand-reared infants. Zoo Biology 18, 261-278.

Reaction of rhesus monkeys with self-injurious behavior to heart rate testing: is biting a coping strategy? American Journal of Primatology 49(1), 79 (Abstract)

Year Published: 1999Animal Type: Macaque, Nonhuman Primate

Citation: Marinus, L. M., Chase, W. K., Rasmussen, K. L. et al. 1999. Reaction of rhesus monkeys with self-injurious behavior to heart rate testing: is biting a coping strategy? American Journal of Primatology 49(1), 79 (Abstract).

The use of guanfacine to control self-injurious behavior in nonhuman primates

Self-injurious behavior (SIB) affects up to 10% of laboratory-housed nonhuman primates. ... Guanfacine therapy provides an effective psychological-stabilizing tool which alleviates self-biting, and provides time to assess and address external stressors and triggers.

Year Published: 1999Animal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Macy, J. D., Beattie, T. A., Morgenstern, S. E. et al. 1999. The use of guanfacine to control self-injurious behavior in nonhuman primates. American Association for Laboratory Animal Science [AALAS] Meeting Official Program, 9 (Abstract).

Separation induced changes in squirrel monkey hypothalamic-pituitary-adrenal physiology resemble aspects of hypercortisolism in humans

When separated from groups, squirrel monkeys respond with significant increases in plasma cortisol and adrenocorticotropic hormone.

Year Published: 1999Animal Type: Nonhuman Primate, Squirrel Monkey

Citation: Lyons, D. M., Wang, O. J., Lindley, S. E. et al. 1999. Separation induced changes in squirrel monkey hypothalamic-pituitary-adrenal physiology resemble aspects of hypercortisolism in humans. Psychoneuroendocrinology 24, 131-142.

Techniques for collecting saliva from awake, unrestrained, adult monkeys for cortisol assay

Our laboratory has developed two methods [not outlined in this abstract] for collecting saliva [e.g., for cortisol determination] from adult rhesus monkeys: a 'screen' method, which involves licking screen-covered gauze, and a 'pole' method, which involves sucking and chewing on...

Year Published: 1999Animal Type: Macaque, Nonhuman Primate

Citation: Lutz, C. K., Tiefenbacher, S., Jorgensen, M. J. et al. 1999. Techniques for collecting saliva from awake, unrestrained, adult monkeys for cortisol assay. American Journal of Primatology 49, 76 (Abstract).

Environmental enrichment: Evaluation of the behavioural modifications in the presence of four kinds of litter in Cebus capucinus

A captive group of white-faced capuchins, Cebus capucinus, was presented with four deep litters in simultaneous choice (or preference) tests. A floor covering of ground corn cob, woodchips, wood wool or peat was presented once in each quarter of the...

Year Published: 1999Topics: Husbandry & Management, Natural BehaviorAnimal Type: Capuchin, Nonhuman Primate

Citation: Ludes-Fraulob, E. 1999. Environmental enrichment: Evaluation of the behavioural modifications in the presence of four kinds of litter in Cebus capucinus. Primatologie 2, 435-448. [French text with English summary]

A review of nutritional and motivational factors contributing to the performance of regurgitation and reingestion in captive lowland gorillas (Gorilla gorilla gorilla)

Regurgitation and reingestion (R/R) is a common phenomenon in captive lowland gorillas (Gorilla gorilla gorilla), but it has never been reported in wild populations. Although changes in diet have been shown to reduce the behavior, little is known about the...

Year Published: 1999Animal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Lukas, K. E. 1999. A review of nutritional and motivational factors contributing to the performance of regurgitation and reingestion in captive lowland gorillas (Gorilla gorilla gorilla). Applied Animal Behaviour Science 63, 237-249.

Captive chimpanzee (Pan troglodytes) object enrichment: The effect of item novelty, category, and amount

The importance of novelty, variety, and number of enrichment objects is discussed in regard to enrichment programs.

Year Published: 1999Topics: Environmental EnrichmentAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Water, G. S., McDowell, M. L., Fouts, R. S. et al. 1999. Captive chimpanzee (Pan troglodytes) object enrichment: The effect of item novelty, category, and amount. ChimpanZoo Conference Proceedings, 32 (Abstract).

The management and husbandry of Geoffroy’s marmoset

A survey of selected enrichment programs for group-housed marmosets. Older individuals ... appear to habituate themselves less to the presence of visitors, and get very agitated when approached. ... High perches should be provided to give animals vantage points from...

Year Published: 1999Topics: Environmental Enrichment, Husbandry & Management, Natural Behavior, Rearing & Weaning, Reproduction, VocalizationAnimal Type: Marmoset, Nonhuman Primate

Citation: Wakenshaw, V. 1999. The management and husbandry of Geoffroy's marmoset. International Zoo News 46(1), 3-15.

The timing of mother-infant separation and its effect on postpartum estrus and subsequent conception in captive baboons

Forced infant weaning at an early age is often practiced by primate breeding facilities to initiate the onset of postpartum estrus and, consequently, maximize reproduction. ... There was [indeed] a significant correlation between age at removal and duration until postpartum...

Year Published: 1999Animal Type: Baboon, Nonhuman Primate

Citation: Valentine, B., Cary, M., Stanley, J. et al. 1999. The timing of mother-infant separation and its effect on postpartum estrus and subsequent conception in captive baboons. American Journal of Primatology 49, 110 (Abstract).