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  1. Naturalistic exhibits may be more effective than traditional exhibits at improving zoo-visitor attitudes toward African apes

    Contributor(s):: Lukas, K. E., Ross, S. R.

    Zoos play a unique role in wildlife conservation, particularly in the area of conservation education. Because of their popularity and flagship status for broader conservation issues, great apes may prove to be one of the most important educational conduits in zoos. In 2002, we surveyed knowledge...

  2. The Problem of Anthropomorphous Animals: Toward a Posthumanist Ethics

    Contributor(s):: Varsava, N.

  3. Assessing the prevalence and characteristics of hair-plucking behaviour in captive western lowland gorillas ( Gorilla gorilla gorilla)

    Contributor(s):: Less, E. H., Kuhar, C. W., Lukas, K. E.

  4. Benefits of naturalistic free-ranging primate displays and implications for increased human-primate interactions

    Contributor(s):: Sha, ChihMun, Kabilan, B., Alagappasamy, S., Guha, B.

  5. A survey of the attitudes of stakeholders in the zoo industry towards the husbandry requirements of captive Great Apes

    Contributor(s):: Fernie, A. C., Tribe, A., Murray, P. J., Lisle, A., Phillips, C. J. C.

  6. Chimpanzee ( Pan troglodytes ) responses to caregiver use of chimpanzee behaviors

    Contributor(s):: Jensvold, M. L. A.

    The relationships between captive primates and their caregivers are critical ones and can affect animal welfare. Friendly relationships can improve quality of life; adversely, agonistic relationships can decrease quality of life. Caregivers in and of themselves should not be stressful to their...

  7. Conflict and reconciliation behavior trends of the bottlenose dolphin ( Tursiops truncatus )

    Contributor(s):: Holobinko, A., Waring, G. H.

    Wild bottlenose dolphin (Tursiops truncatus) populations display societal structures characterized by numerous and frequent changes in group composition, complex social relationships, and high levels of cooperation, attributes also observed in human and nonhuman primate cultures. Maintaining...

  8. The domestication of social cognition in dogs

    Contributor(s):: Hare, B., Brown, M., Williamson, C., Tomasello, M.

    Dogs are more skillful than great apes at a number of tasks in which they must read human communicative signals indicating the location of hidden food. In this study, we found that wolves who were raised by humans do not show these same skills, whereas domestic dog puppies only a few weeks old,...

  9. Making inferences about the location of hidden food: Social dog, causal ape

    Contributor(s):: Bräuer, Juliane, Kaminski, Juliane, Riedel, Julia, Call, Josep, Tomasello, Michael

  10. Psychopathology in great apes: concepts, treatment options and possible homologies to human psychiatric disorders

    Contributor(s):: Brune, M., Brune-Cohrs, U., McGrew, W. C., Preuschoft, S.

  11. A note on enrichment for spontaneous tool use by chimpanzees ( Pan troglodytes )

    Contributor(s):: Morimura, N.

    In the wild, decisions as to "when", "where", and "how" an animal acts are made based on the individual's own choice; in contrast, the behaviour of wild animals in captivity may be under human control. To improve the physical and psychological well-being of captive animals, we should ensure that...

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

    Contributor(s):: Lukas, K. E.

    A review. Regurgitation and reingestion is a common phenomenon in captive lowland gorillas, 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 underlying mechanisms that lead to its development and...

  13. Gorilla behavior in response to systematic alternation between zoo enclosures

    Contributor(s):: Lukas, K. E., Hoff, M. P., Maple, T. L.

  14. Preliminary comparisons of male/male interactions within bachelor and breeding groups of western lowland gorillas ( Gorilla gorilla gorilla ). (Special issue: Primates in zoos)

    Contributor(s):: Pullen, P. K.

    The establishment of bachelor groups of western lowland gorillas (Gorilla gorilla gorilla) in captivity was considered to be a necessary husbandry step in response to growing concern within the European and North American cooperative breeding programmes that breeding situations are limited...

  15. Space use as an indicator of enclosure appropriateness: a novel measure of captive animal welfare

    Contributor(s):: Ross, S. R., Schapiro, S. J., Hau, J., Lukas, K. E.

    Empirical measures of animal behavior and space use within the captive environment can provide critical information about animals' requirements, preferences and internal states. The trend toward naturalistic environments has shown promise in terms of behavioral benefits for animals such as great...

  16. The influence of rearing on personality ratings of captive chimpanzees ( Pan troglodytes ). (Special issue: Primates in zoos)

    Contributor(s):: Martin, J. E.

    Personality traits of 43 captive chimpanzees (Pan troglodytes) at five zoos in the United Kingdom were assessed. Chimpanzees were categorized into one of three rearing conditions: mother-group-reared (MGR), reared with others but separated from mother (RO), and reared alone for a period of time...

  17. Inter-group variation in abnormal behaviour in chimpanzees ( Pan troglodytes ) and rhesus macaques ( Macaca mulatta )

    Contributor(s):: Hook, M. A., Lambeth, S. P., Perlman, J. E., Stavisky, R., Bloomsmith, M. A., Schapiro, S. J.

    The present study was designed to explore whether abnormal behaviour patterns in captive chimpanzees and rhesus macaques can provide additional data relevant to the question of social transmission of behaviour in non-human primates. The degrees to which various abnormal behaviours were displayed...

  18. Primiparous chimpanzee mothers: behavior and success in a short-term assessment of infant rearing

    Contributor(s):: Bloomsmith, M. A., Kuhar, C., Baker, K., Lambeth, S., Brent, L., Ross, S. R., Fritz, J.

    Assessing the maternal competence of a first time chimpanzee mother can be difficult. Managers will often attempt to leave infants with their mothers as long as possible in an effort to provide the infant with natural maternal care, as well as give the mother some maternal experience. However if...

  19. Tool use task as environmental enrichment for captive chimpanzees

    Contributor(s):: Celli, M. L., Tomonaga, M., Udono, T., Teramoto, M., Nagano, K.

    Wild chimpanzees spend 50-80% of their time foraging, using tools and other forms of manipulation, while captive chimpanzees cannot. In this study, a device - honey in a bottle to be "fished" with artificial materials - that elicits tool use was presented to six captive chimpanzees housed in...

  20. Visitor effects on anxiety in two captive groups of western lowland gorillas

    Contributor(s):: Carder, G., Semple, S.

    There is growing interest in examining the effects that visitors have on the welfare of zoo primates. Most recently, the importance of evaluating the combined impacts of visitors and management practices on anxiety levels of these animals has been highlighted. Studies that take such an approach...