Nonhuman Primate

Individual differences in macaques’ responses to stressors based on social and physiological factors: implications for primate welfare and research outcomes

Non-human primates exhibit distinct individual differences in their behavioural and physiological responses to experimental challenges and caretaking procedures. We have been investigating what factors can predict some of these individual differences, and have found that factors both intrinsic and extrinsic...

Year Published: 1995Animal Type: Macaque, Nonhuman Primate

Citation: Boccia, M. L., Laudenslager, M. L., Reite, M. L. 1995. Individual differences in macaques' responses to stressors based on social and physiological factors: implications for primate welfare and research outcomes . Laboratory Animals 29, 250-257.

Effects of predictable versus unpredictable feeding schedules on chimpanzee behavior

These findings indicate that feeding on a more unpredictable schedule may lead to increased species-appropriate behavior [more activity, less abnormal behavior] in group-housed chimpanzees.

Year Published: 1995Animal Type: Chimpanzee, Nonhuman Primate

Citation: Bloomsmith, M. A., Lambeth, S. P. 1995. Effects of predictable versus unpredictable feeding schedules on chimpanzee behavior. Applied Animal Behaviour Science 44, 65-74.

Dealing with specific behavioral problems using operant conditioning with bonobos (Pan paniscus)

Training technique is described. Although we still have days when animals refuse to shift, scream, or act out aggressively, for the most part these negative and highly disruptive behaviors have greatly diminished.

Year Published: 1995Animal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Bell, B. K. 1995. Dealing with specific behavioral problems using operant conditioning with bonobos (Pan paniscus). American Zoo and Aquarium Association (AZA) Regional Conference Proceedings, 26-28.

A study of environmental enrichment in groups of captive lion tamarins (Leontopithecus rosalia & Leontopithecus chrysmelas)

Woodwool turned out to be a very useful substrate for group-housed tamarins. An important effect of the woodwool substrate was increased hygiene. An insect dispenser is described which was rarely used by adults, who would sit underneath it and wait...

Year Published: 1995Animal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Beck, R. P. A. 1995. A study of environmental enrichment in groups of captive lion tamarins (Leontopithecus rosalia & Leontopithecus chrysmelas). RATEL (Journal of the Association of British Wild Animal Keepers) 22(4), 112-126.

The effect of food distribution on captive Old World primates

When the food was placed in a single pile on the top of the cage the [group-housed] monkeys were still eating at the end of the 30 minute observation session.

Year Published: 1995Topics: Husbandry & ManagementAnimal Type: Nonhuman Primate

Citation: Buchanan-Smith, H. M. 1995. The effect of food distribution on captive Old World primates. The Shape of Enrichment 4(1), 12-13.

Nonhuman primate wounding prevalence: A retrospective analysis

A survey of the occurrence of injuries in group-housed, pair-housed and individually housed macaques. Females acquired wounds and required wound management more frequently than males in group-housed macaques. Individually housed males engaged in self-biting behaviour more often than their female...

Year Published: 1995Animal Type: Macaque, Nonhuman Primate

Citation: Bayne, K., Haines, M., Dexter, S. et al. 1995. Nonhuman primate wounding prevalence: A retrospective analysis. Lab Animal 24(4), 40-44.

Effects of environmental enrichment on nonsocial and abnormal behavior of captive lowland gorillas (Gorilla gorilla gorilla)

The use of straw as bedding material appears to have a positive effect on both specific nonsocial [feeding/foraging] and abnormal behavior [coprophagy, regurgitation].

Year Published: 1995Topics: Abnormal/Problematic Behavior, Environmental EnrichmentAnimal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Brown, D. L., Calcagno, J., Gold, K. C. et al. 1995. Effects of environmental enrichment on nonsocial and abnormal behavior of captive lowland gorillas (Gorilla gorilla gorilla). American Zoo and Aquarium Association (AZA) Regional Conference Proceedings, 29-35.

The use of non-human primates as laboratory animals in Europe: Moving toward the zero option

Estimates of so-called need [of non-human primates] are based on current use which, in my view, cannot be justified on scientific grounds. If current regulations on establishing necessity were applied more strictly, the real figure for justifiable need would fall...

Year Published: 1995Animal Type: Nonhuman Primate

Citation: Balls, M. 1995. The use of non-human primates as laboratory animals in Europe: Moving toward the zero option. ATLA (Alternatives to Laboratory Animals) 23, 284-286.

The behavioral and physiological response of baboons (Papio hamadryas sp.) to radio music

Vocalization [of the single-housed subjects] was twice as high when the radio was off. Blood pressure did not vary with radio condition, but the heart rate was significantly lower when the radio was playing.

Year Published: 1995Animal Type: Baboon, Nonhuman Primate

Citation: Brent, L., Weaver, D. 1995. The behavioral and physiological response of baboons (Papio hamadryas sp.) to radio music. American Journal of Primatology 36, 114 (Abstract).

Differences in behavior between chimpanzees housed long-term in individual cages and small groups

Chimpanzees housed in pairs or trios showed fewer signs of tension, anxiety and aggressiveness than those housed singly.

Year Published: 1995Animal Type: Chimpanzee, Nonhuman Primate

Citation: Baker, K. C. 1995. Differences in behavior between chimpanzees housed long-term in individual cages and small groups. American Journal of Primatology 36, 106 (Abstract).