This project investigates how rhesus monkeys and other nonhuman primate species born and raised under different laboratory conditions adapt to placement into environments that contain specific physical and social features of the monkey's natural habitat. Adaptation is assessed by examining behavioral repertoires and by monitoring a variety of physiological systems in these subjects, yielding broad-based indices of relative physical and psychological well-being. The responses of subjects to experimental manipulation of selected features of their respective environments are also assessed in similar fashion. Whenever possible, field data are collected for appropriate comparisons. An additional focus is on investigating the cognitive, behavioral, and social processes involved in adaptation to new settings or circumstances. Capuchin monkeys are employed in many of these studies because they are unique among monkeys species in their propensity to manufacture and use tools to modify their physical environment. Research carried out during FY00 (a) documented a predictive relationship between individual differences in maternal care received by rhesus monkey infants and their subsequent distress exhibited following the birth of a younger sibling in a wild-living rhesus monkey population on Cayo Santiago island (PR); (b) characterized individual differences in the form and amount of infant-directed aggression and other aspects of maternal behavior among rhesus monkey mothers living in the LCE's 5-acre field enclosure at the NIHAC; (c) identified differences between abusive behavior by mothers directed toward their offspring and aggressive behavior directed toward other members of their social group; (d) documented instances of kidnapping of rhesus monkey infants by nonkin juvenile and adult females and related such behavior to differences in social rank between the infants' mothers and their kidnappers; (e) characterized individual differences in alloparenting behaviors toward infants by adult male rhesus monkeys living in the 5-acre field enclosure as a function of the infants' gender and their mothers' age, social rank, and previous maternal experience;(f) characterized the development of social grooming patterns and conflict resolution over the second and third year of life in monkeys reared in the absence of adults; and (g) characterized changes in steroid hormone secretion associated the introduction of contraceptives in adult female capuchin monkeys.

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U.S. National Inst/Child Hlth/Human Dev
United States
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Ruggiero, Angela M; Novak, Matthew F S X; Woodward, Ruth A et al. (2009) Successful behavioral strategy to unite mother and infant rhesus monkeys (Macaca mulatta) after cesarean delivery. Am J Primatol 71:510-22
Byrne, Gayle; Suomi, Stephen J (2009) Intimate social behavior in infant interactions in Cebus apella. Am J Primatol 71:77-85
Miller, Kimran E; Laszlo, Katalin; Suomi, Stephen J (2008) Why do captive tufted capuchins (Cebus apella) urine wash? Am J Primatol 70:119-26
Novak, Matthew Fsx; Kenney, Caroline; Suomi, Stephen J et al. (2007) Use of animal-operated folding perches by rhesus macaques (Macaca mulatta). J Am Assoc Lab Anim Sci 46:35-43
Lutz, Corrine K; Davis, Ernie B; Ruggiero, Angela M et al. (2007) Early predictors of self-biting in socially-housed rhesus macaques (Macaca mulatta). Am J Primatol 69:584-90
Roma, Peter G; Silberberg, Alan; Huntsberry, Mary E et al. (2007) Mark tests for mirror self-recognition in capuchin monkeys (Cebus apella) trained to touch marks. Am J Primatol 69:989-1000
Roma, Peter G; Champoux, Maribeth; Suomi, Stephen J (2006) Environmental control, social context, and individual differences in behavioral and cortisol responses to novelty in infant rhesus monkeys. Child Dev 77:118-31
Roma, Peter G; Silberberg, Alan; Ruggiero, Angela M et al. (2006) Capuchin monkeys, inequity aversion, and the frustration effect. J Comp Psychol 120:67-73
Silberberg, Alan; Roma, Peter G; Ruggiero, Angela M et al. (2006) On inequity aversion in nonhuman primates. J Comp Psychol 120:76
Suomi, Stephen J (2005) Aggression and social behaviour in rhesus monkeys. Novartis Found Symp 268:216-22; discussion 222-6, 242-5

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