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  1. Cognitive bias as an indicator of animal emotion and welfare: emerging evidence and underlying mechanisms. (Special Issue: Animal suffering and welfare.)

    Contributor(s):: Mendl, M., Burman, O. H. P., Parker, R. M. A., Paul, E. S.

    Accurate assessment of animal emotion (affect) is an important goal in animal welfare science, and in areas such as neuroscience and psychopharmacology. Direct measures of conscious emotion are not available, so assessment of animal affect has relied on measures of the behavioural and...

  2. Correlates of self-directed and stereotypic behaviours in captive red-capped mangabeys ( Cercocebus torquatus torquatus )

    Contributor(s):: Reamer, L., Tooze, Z., Coulson, C., Semple, S.

    The quantification of behaviours linked to anxiety or stress provides a powerful means to address applied questions related to the well-being of captive animals. This study explored correlates of two such behaviours - self-directed (SDB) and stereotypic behaviour (STB) - among captive red-capped...

  3. Effects of positive interaction with caretakers on the behaviour of socially housed common marmosets ( Callithrix jacchus )

    Contributor(s):: Manciocco, A., Chiarotti, F., Vitale, A.

    Every aspect of the life of the captive non-human primates should be carefully attended to, as updated refinement concept recommends. Interaction with humans as environmental enrichment for these animals is believed to be of value, but it has been subject to little quantitative evaluation. This...

  4. Testing a model for predicting primate crop-raiding using crop- and farm-specific risk values

    Contributor(s):: Nijman, V., Nekaris, K. A. I.

    Crop-raiding by primates is increasingly known to cause conflict between humans and primates, and due to their opportunism, adaptability, intelligence and manipulative abilities, primates can be significant agricultural pests. Levels of crop-raiding are dependent on time of year, crop type, size...

  5. Welfare implications of captive primate population management: behavioural and psycho-social effects of female-based contraception, oestrus and male removal in hamadryas baboons ( Papio hamadryas ). (Special issue: Primates in zoos)

    Contributor(s):: Plowman, A. B., Jordan, N. R., Anderson, N., Condon, E., Fraser, O.

    In response to overpopulation, management actions were taken over a 5-year period to reduce group size and slow the population growth rate of hamadryas baboons at Paignton Zoo Environmental Park. Management involved three planned removals of several individuals and implantation of all adult...

  6. What time is feeding? How delays and anticipation of feeding schedules affect stump-tailed macaque behavior

    Contributor(s):: Waitt, C., Buchanan-Smith, H. M.

    Everyday animal care routines are essential to an animal's physical well-being but the effects of husbandry routines on the animals' psychological well-being are not often considered. The scheduling of animal care routines may have an important impact on how they are perceived by the animals...

  7. Assessment of preference for grid-flooring and sawdust-flooring by captive-bred marmosets in free-standing cages

    Contributor(s):: Hardy, A., Windle, C. P., Baker, H. F., Ridley, R. M.

    Marmosets (Callithrix jacchus) in a captive breeding colony living in metal caging, with wooden shelves and perches, were assessed by video recording for the time spent on the floor of the cage when that floor was a wire grid above a sawdust-filled tray and when it had been changed to a...

  8. Evidence that zoo visitors influence HPA activity in spider monkeys ( Ateles geoffroyii rufiventris ). (Special issue: Primates in zoos)

    Contributor(s):: Davis, N., Schaffner, C. M., Smith, T. E.

    There has been conflicting evidence about the impact of visitors on zoo animals. The present study was designed to increase understanding of visitor effect by assessing the relationship between visitor numbers and activity in the hypothalamic-pituitary-adrenal (HPA) axis. An enzyme-immunoassay...

  9. Exploiting flavour preferences of common marmosets to increase palatability of a dry pellet diet

    Contributor(s):: Caldwell, C. A., Watson, C. F. E., Morris, K. D.

    Although commercially available complete diets exist for common marmosets, the animals' consumption of these diets (available in dry pellet form) is typically very low. Increasing consumption of the pellet diet could have positive consequences for the welfare of the marmosets as the pellets are...

  10. Factors influencing hair loss among female captive rhesus macaques ( Macaca mulatta )

    Contributor(s):: Beisner, B. A., Isbell, L. A.

    Although rare among wild animals, hair loss is common among captive animals, which suggests that some aspect of the captive environment contributes to abnormal hair loss. Female rhesus macaques (Macaca mulatta) at the California National Primate Research Center (CNPRC) housed in outdoor...

  11. Influence of the presence of seeds and litter on the behaviour of captive red-capped mangabeys Cercocebus torquatus torquatus

    Contributor(s):: Blois-Heulin, C., Jubin, R.

    The aim of this study was to analyse the influence of the presence of seeds and litter on the time budget of a family group of red-capped mangabeys, to improve animal welfare. Five experimental situations were tested in succession: (1) bare ground (without making any particular modifications of...

  12. 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...

  13. Patterns of injury in zoo-housed spider monkeys: a problem with males?

    Contributor(s):: Davis, N., Schaffner, C. M., Wehnelt, S.

    Aggression among wild spider monkeys is most frequently reported to occur between the sexes, with adult males directing aggression towards adult females and the aggression is normally non-injurious. After two severe instances of aggression in the group of spider monkeys housed at Chester Zoo, we...

  14. Behavioral differences between provisioned and non-provisioned Barbary macaques ( Macaca sylvanus )

    Contributor(s):: Unwin, T., Smith, A.

    The majority of Gibraltar's Barbary macaques (Macaca sylvanus) are provided with fruit and vegetable rations to keep them in the nature reserve and away from town. Recent fissioning of one troop has created a vagrant group that is denied access to official feeding sites by other troops, and which...

  15. Human Culture and Monkey Behavior: Assessing the Contexts of Potential Pathogen Transmission Between Macaques and Humans

    Contributor(s):: Fuentes, Agustín

  16. Human-nonhuman primate interactions amongst Tikuna people: Perceptions and local initiatives for resource management in Amacayacu in the Colombian Amazon

    Contributor(s):: Parathian, Hannah E., Maldonado, Angela M.

  17. I know you are not looking at me: Capuchin monkeys' (Cebus apella) sensitivity to human attentional states

    Contributor(s):: Hattori, Yuko, Kuroshima, Hika, Fujita, Kazuo

  18. Interactions between visitors and Formosan macaques ( Macaca cyclopis ) at Shou-Shan Nature Park, Taiwan

    Contributor(s):: Hsu, M. J., Kao, ChienChing, Agoramoorthy, G.

    Ecotourism involving feeding wildlife has raised public attention and is a controversial issue, especially concerning nonhuman primates. Between July 2002 and April 2005, the behavior of monkeys and tourists was collected through scan samplings, focal samplings and behavior samplings at the...

  19. Macaques in farms and folklore: Exploring the human-nonhuman primate interface in Sulawesi, Indonesia

    Contributor(s):: Riley, Erin P., Priston, Nancy E. C.

  20. Monkeys fail to reciprocate in an exchange task

    Contributor(s):: Pelé, Marie, Thierry, Bernard, Call, Josep, Dufour, Valérie