Other Nonhuman Primate

Effects of browse, human visitors and noise on the behaviour of capive orang utans

Provision of fresh browse [usually willow] led to a decrease in the time spent inactive ..... it also led to an increase in the time spent by adults foraging for small food items in the woodchip floor-covering beneath the branches...

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

Citation: Birke, L. 2002. Effects of browse, human visitors and noise on the behaviour of capive orang utans. Animal Welfare 11, 189-202.

Conflict resolution following aggression in gregarious animals: a predictive framework

Knowledge of how animals manage their conflicts is critical for understanding the dynamics of social systems. During the last two decades research on gregarious animals, especially primates, has focused on the mechanisms of conflict management, mainly on friendly postconflict reunions...

Year Published: 2002Animal Type: Baboon, Capuchin, Chimpanzee, Goat, Lemur, Macaque, Marine Mammal, Marmoset, Nonhuman Primate, Other Animal, Other Nonhuman Primate, Squirrel Monkey

Citation: Aureli, F., Cords, M., van Schaik, C. P. 2002. Conflict resolution following aggression in gregarious animals: a predictive framework . Animal Behaviour 64(3), 325-343.

Friendship among adult female blue monkeys (Cercopithecus mitis)

A study group of blue monkeys in the Kakamega Forest, Kenya, provides data on friendly relationships between adult females. Females are invariably antagonistic toward members of other groups, and collaborate with their own groupmates in defending territorial boundaries. Females are...

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

Citation: Cords, M. 2002. Friendship among adult female blue monkeys (Cercopithecus mitis) . Behaviour 139, 291-314.

Techniques that promote the psychological well-being of captive primates and their application in the husbandry and management of gorillas (Gorilla gorilla gorilla) and chimpanzees (Pan troglodytes)

An effective environmental enrichment program is described at Lincoln Park Zoo at Lester E. Fisher Great Ape House

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

Citation: Elsner, R. 2002. Techniques that promote the psychological well-being of captive primates and their application in the husbandry and management of gorillas (Gorilla gorilla gorilla) and chimpanzees (Pan troglodytes). Animal Keepers' Forum 29(2), 66-84.

Effects of supplemental feeding enrichment on gorilla (Gorilla gorilla gorilla) activity at the Los Angeles Zoo

The frequency of R&R increased with raisins, yogurt and popcorn and decreased with leafy browse.

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

Citation: Cox, C. R., DuBois, T. T., Renzetti, V. I. 2002. Effects of supplemental feeding enrichment on gorilla (Gorilla gorilla gorilla) activity at the Los Angeles Zoo. American Journal of Primatology 57(Supplement), 83 (Abstract).

Change of enclosure in langur monkeys: implications for the evaluation of environmental enrichment

A group of Hanuman langurs (Presbytis entellus) was studied before and after it was moved from an old cage-style enclosure to a novel naturalistic environment at the London Zoo. Eating and locomotion occupied more of the langurs' time in their...

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

Citation: Little, K. A., Sommer, V. 2002. Change of enclosure in langur monkeys: implications for the evaluation of environmental enrichment. Zoo Biology 21, 549-559.

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.

Artificial weaning of Old World monkeys: Benefits and costs

The perceived benefits of permanent, pre-weaning mother-infant separation are not supported by scientific findings. ... As long as there is an excessive number of monkeys and insufficient cage space, there is no ethically legitimate reason for attempting to enhance the...

Year Published: 2002Topics: Husbandry & Management, Rearing & WeaningAnimal Type: Baboon, Macaque, Nonhuman Primate, Other Nonhuman Primate

Citation: Reinhardt, V. 2002. Artificial weaning of Old World monkeys: Benefits and costs. Journal of Applied Animal Welfare Science 5(2), 151-156.

Use of positive reinforcement training to decrease stereotypic behaviors in a pair of orangutans (Pongo pygmaeus)

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

Citation: Raper, J. R., Bloomsmith, M. A., Stone, A. et al. 2002. Use of positive reinforcement training to decrease stereotypic behaviors in a pair of orangutans (Pongo pygmaeus). American Journal of Primatology 57(Supplement), 12 (Abstract).

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).