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Author de Waal, F.B.M. openurl 
  Title Animal Social Conflict Type Miscellaneous
  Year 1993 Publication Abbreviated Journal  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4894  
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Author de Waal, F.B.M. openurl 
  Title Peacemaking Among Primates Type Miscellaneous
  Year 1989 Publication Abbreviated Journal  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4924  
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Author Call, J.; Aureli, F.; de Waal, F.B.M. url  doi
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  Title Postconflict third-party affiliation in stumptailed macaques Type Journal Article
  Year 2002 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 63 Issue 2 Pages 209-216  
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  Abstract Stumptailed macaques, Macaca arctoides, are characterized by high levels of postconflict affiliative contacts between opponents. We investigated the occurrence of postconflict affiliative contacts between opponents and third parties that were not involved in the original conflict. We collected 10-min focal observations during postconflict and control periods in which we recorded all aggressive and affiliative behaviours between opponents and third parties. We distinguished three types of third parties depending on the relationship with the focal animal: own kin, opponent's kin and individuals unrelated to both opponents. We analysed the interactions with third parties separately, while distinguishing two classes of affiliative behaviours: (1) allogrooming and contact sitting and (2) sociosexual behaviours (e.g. genital inspection). The macaques showed differences between postconflict and control periods in their affiliative contacts with third parties. Aggressors received more postconflict grooming and contact sitting from their opponents' kin, received more sociosexual behaviour from their own kin and unrelated individuals, and directed more sociosexual behaviour to unrelated individuals. Victims received and directed less postconflict grooming from and towards their own kin. They received more postconflict sociosexual behaviour from all partners except their own kin and directed more sociosexual behaviour to all partners except the opponent's kin. This study establishes the occurrence of multiple postconflict triadic affiliation in stumptailed macaques, and is the first to show that victims receive contacts from third parties in a cercopithecine species, a behaviour previously described only in chimpanzees. It also highlights the importance of analysing the different affiliative behaviours separately in postconflict situations. Otherwise, many of the patterns we report, especially those involving victims, would have been missed.  
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  Notes Approved no  
  Call Number refbase @ user @ Serial 304  
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Author de Waal, F.B.M. isbn  openurl
  Title Chimpanzee politics:power and sex among apes. Type Book Whole
  Year 1982 Publication Abbreviated Journal  
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  Publisher Johns Hopkins University Press Place of Publication Baltimore Editor  
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  ISSN (up) ISBN 978-0801886560 Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4857  
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Author de Waal, F.B.M.; Aureli, F. openurl 
  Title Consolation, reconciliation, and a possible cognitive difference between macaque and chimpanzee Type Book Chapter
  Year 1996 Publication Reaching into Thought: The Minds of the Great Apes Abbreviated Journal  
  Volume Issue Pages 80–110.  
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  Abstract Russon,A.E.; Bard, K.A.; Parker, S.T.  
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  Publisher Cambridge University Press Place of Publication Cambridge Editor Russon,A.E.; Bard, K.A.; Parker, S.T.  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5060  
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Author Call, J.; Aureli,F.; de Waal, F.B. M. doi  openurl
  Title Reconciliation patterns among stumptailed macaques: a multivariate approach Type Journal Article
  Year 1999 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 58 Issue 1 Pages 165-172  
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  Abstract This study focused on two aspects of the dynamics of reconciliation in stumptailed macaques, Macaca arctoides. First, we investigated the combined effects of multiple variables (i.e. sex, age, rank, conflict intensity, outcome, or number of participants, interopponent distance, kinship and friendship) on the occurrence of reconciliation. Second, we investigated whether opponents used different behaviour patterns in their postconflict reunions depending on the characteristics of their conflicts or their relationship with their opponents. We studied a multimale, multifemale group of 38 stumptailed macaques housed in a large outdoor compound. Three types of data were collected: (1) instantaneous scan sampling of contact sitting to infer 'friendship'; (2) ad libitum data on bared-teeth and teeth-chattering displays to infer dominance rank; (3) 10-min focal observations during postconflict (PC) and matched control (MC) periods in which we recorded interopponent distance at the beginning of the observation and all aggressive and affiliative behaviours between former opponents. Our study confirmed the high conciliatory tendency of stumptailed macaques previously reported for other groups. A stepwise logistic regression revealed that initial interopponent distance in PC, friendship and kinship were the only factors that independently contributed to explain the occurrence of reconciliation. Two main clusters of postconflict behavioural patterns emerged: allogrooming+contact sitting and sociosexual behaviours (e.g. hold-bottom). It is hypothesized that postconflict allogrooming and contact sitting may be used for the maintenance of valuable relationships, whereas sociosexual behaviours may be used more indiscriminately by any pair of opponents as a buffering mechanism to prevent immediate recurrence of aggression. Copyright 1999 The Association for the Study of Animal Behaviour.  
  Address School of Biological Sciences, University of Liverpool  
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  ISSN (up) 0003-3472 ISBN Medium  
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  Notes PMID:10413553 Approved no  
  Call Number refbase @ user @ Serial 194  
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Author Parr, L.A.; Matheson, M.D.; Bernstein, I.S.; De Waal, F.B.M. doi  openurl
  Title Grooming down the hierarchy: allogrooming in captive brown capuchin monkeys, Cebus apella Type Journal Article
  Year 1997 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 54 Issue 2 Pages 361-367  
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  Abstract Observations of captive female brown capuchin monkeys in five groups revealed that grooming is primarily the occupation of dominant females at both the individual and dyadic levels. When categorized according to rank class, alpha females were the only class to perform significantly more grooming than they received. These results are inconsistent with reports on vervets, baboons and macaques, and suggest that grooming in capuchin monkeys may have different functions from those reported for cercopithecine primates. A dyadic analysis revealed, however, that grooming occurred more often between closely ranked females, similar to what is seen in several Old World monkey species. Therefore, some aspects of grooming in capuchins are similar to that seen in Old World monkeys, but the way they distribute grooming is different, which may prompt a re-evaluation of current theories regarding the social function of allogrooming in non-human primates.  
  Address Yerkes Regional Primate Research Center and Department of Psychology, Emory University  
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  ISSN (up) 0003-3472 ISBN Medium  
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  Notes PMID:9268468 Approved no  
  Call Number refbase @ user @ Serial 200  
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Author de Waal, F.B.; Johanowicz, D.L. openurl 
  Title Modification of reconciliation behavior through social experience: an experiment with two macaque species Type Journal Article
  Year 1993 Publication Child development Abbreviated Journal Child Dev  
  Volume 64 Issue 3 Pages 897-908  
  Keywords Aggression; Animals; *Behavior, Animal; Female; Grooming; *Macaca; *Macaca mulatta; Male; Play and Playthings; *Socialization; Vocalization, Animal  
  Abstract Reconciliation, defined as a friendly reunion between former opponents shortly after an aggressive encounter, is common in the stumptail macaque (Macaca arctoides) but rare in the rhesus macaque (M. mulatta). Juveniles of the two species were cohoused for 5 months, after which they were observed with conspecifics only. Control rhesus monkeys, matched in age and sex to the experimental subjects, went through the same procedure without exposure to the other species. A threefold increase in the proportion of reconciled fights was measured in the rhesus subjects. The difference emerged gradually during cohousing with the tutor species and was sustained following removal of this species. Other behavior, such as grooming and aggression, decreased over time. It is suggested that the social attitude of the subjects was affected through contact with a species characterized by a more relaxed dominance style.  
  Address Wisconsin Regional Primate Research Center, University of Wisconsin-Madison  
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  ISSN (up) 0009-3920 ISBN Medium  
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  Notes PMID:8339702 Approved no  
  Call Number refbase @ user @ Serial 209  
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Author Brosnan, S.F.; de Waal, F.B.M. doi  openurl
  Title A concept of value during experimental exchange in brown capuchin monkeys, Cebus apella Type Journal Article
  Year 2004 Publication Folia primatologica; international journal of primatology Abbreviated Journal Folia Primatol (Basel)  
  Volume 75 Issue 5 Pages 317-330  
  Keywords Animals; Cebus/*psychology; *Choice Behavior; Female; Food Preferences; *Learning; Male; Sex Factors; Statistics, Nonparametric; *Token Economy; Video Recording  
  Abstract We evaluated the response of brown capuchin monkeys to two differentially valued tokens in an experimental exchange situation akin to a simple barter. Monkeys were given a series of three tests to evaluate their ability to associate tokens with food, then their responses were examined in a barter situation in which tokens were either limited or unlimited. Capuchins did not perform barter in the typical sense, returning the tokens which were associated with the reward. However, females, but not males, showed a different response, preferring the higher-value token. This may indicate that they learned to prefer one token over the other rather than to associate the tokens with their specific rewards. This sex difference parallels previous findings of greater reciprocity in female brown capuchins than in males.  
  Address Living Links Center, Emory University, Yerkes National Primate Research Center, 954 N. Gatewood Drive, Atlanta, GA 30329, USA. sbrosna@emory.edu  
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  ISSN (up) 0015-5713 ISBN Medium  
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  Notes PMID:15486443 Approved no  
  Call Number refbase @ user @ Serial 170  
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Author Judge, P.G.; de Waal, F.B. openurl 
  Title Intergroup grooming relations between alpha females in a population of free-ranging rhesus macaques Type Journal Article
  Year 1994 Publication Folia primatologica; international journal of primatology Abbreviated Journal Folia Primatol (Basel)  
  Volume 63 Issue 2 Pages 63-70  
  Keywords Animals; Animals, Wild; Female; *Grooming; Macaca mulatta/*psychology; Male; Population Density; *Social Behavior  
  Abstract Intergroup affiliation among female rhesus macaques, Macaca mulatta, was examined in the captive free-ranging colony of Morgan Island, S.C., USA. The provisioned colony has many social groups (35) and is maintained at a relatively high population density (21 animals/ha) with a relatively low adult male to female ratio (1:8.8). Focal and ad libitum samples were collected on 32 adults (3 males and 29 females) from two groups. Although infrequent, grooming was observed between adult females from different groups, and alpha females were the main participants in these interactions. Colony records indicated that none of the intergroup grooms was between females formerly from a common group. Relations between familiar neighboring groups may be maintained by a combination of both affiliative and aggressive behavior.  
  Address Yerkes Regional Primate Research Center, Lawrenceville, Ga 30243  
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  ISSN (up) 0015-5713 ISBN Medium  
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  Notes PMID:7813977 Approved no  
  Call Number refbase @ user @ Serial 208  
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