Records |
Author |
de Waal, F.B. |
Title |
Food transfers through mesh in brown capuchins |
Type |
Journal Article |
Year |
1997 |
Publication |
Journal of comparative psychology (Washington, D.C. : 1983) |
Abbreviated Journal |
J Comp Psychol |
Volume |
111 |
Issue |
4 |
Pages |
370-378 |
Keywords |
Animals; Cebus/*psychology; *Feeding Behavior; Female; Food Preferences/psychology; Male; *Motivation; Sex Factors; *Social Behavior; Social Environment |
Abstract |
Capuchin monkeys (Cebus apella) share food even if their partner is behind a mesh restraint. Pairs of adult capuchins were moved into a test chamber in which 1 monkey received cucumber pieces for 20 min and the other received apple slices during the following 20 min. Tolerant transfers of food occurred reciprocally among females: The rate of transfer from Female B to A in the second test phase varied with the rate from Female A to B in the first test phase. Several social mechanisms may explain this reciprocity. Whereas this study does not contradict cognitively complex explanations (e.g., mental record keeping of given and received food), the results are consistent with a rather simple explanation: that food sharing reflects a combination of affiliative tendency and high tolerance. The study suggests that sharing mechanisms may be different for adult male capuchins, with males sharing food more readily and less discriminatingly than females. |
Address |
Yerkes Primate Center, Emory University, Atlanta, Georgia 30329, USA. dewaal@emory.edu |
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ISSN |
0735-7036 |
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Notes |
PMID:9419882 |
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no |
Call Number |
refbase @ user @ |
Serial |
198 |
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Author |
Cheney, D.L.; Seyfarth, R.M. |
Title |
The representation of social relations by monkeys |
Type |
Journal Article |
Year |
1990 |
Publication |
Cognition |
Abbreviated Journal |
Cognition |
Volume |
37 |
Issue |
1-2 |
Pages |
167-196 |
Keywords |
Animals; Cercopithecus aethiops/*psychology; Concept Formation; *Dominance-Subordination; Female; Macaca fascicularis/*psychology; Male; *Social Behavior; *Social Environment |
Abstract |
Monkeys recognize the social relations that exist among others in their group. They know who associates with whom, for example, and other animals' relative dominance ranks. In addition, monkeys appear to compare types of social relations and make same/different judgments about them. In captivity, longtailed macaques (Macaca fascicularis) trained to recognize the relation between one adult female and her offspring can identify the same relation among other mother-offspring pairs, and distinguish this relation from bonds between individuals who are related in a different way. In the wild, if a vervet monkey (Cercopithecus aethiops) has seen a fight between a member of its own family and a member of Family X, this increases the likelihood that it will act aggressively toward another member of Family X. Vervets act as if they recognize some similarity between their own close associates and the close associates of others. To make such comparisons the monkeys must have some way of representing the properties of social relationships. We discuss the adaptive value of such representations, the information they contain, their structure, and their limitations. |
Address |
Department of Anthropology, University of Pennsylvania, Philadelphia 19104 |
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ISSN |
0010-0277 |
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Notes |
PMID:2269006 |
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no |
Call Number |
refbase @ user @ |
Serial |
702 |
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Author |
Katz, M.; Lachlan, R.F. |
Title |
Social learning of food types in zebra finches (Taenopygia guttata) is directed by demonstrator sex and feeding activity |
Type |
Journal Article |
Year |
2003 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
Volume |
6 |
Issue |
1 |
Pages |
11-16 |
Keywords |
Animals; Color; Diet; *Feeding Behavior; Female; *Learning; Male; Sex Factors; *Social Behavior; *Songbirds |
Abstract |
In this study we examined how social learning of feeding preferences by zebra finches was affected by the identity of different demonstrators. We presented adult zebra finches with two demonstrators, one male and one female, that exhibited different food choices, and we recorded their subsequent preference when given a choice between the two food types. Previously it was found that young zebra finches' patterns of social learning are affected by the sex of the individual demonstrating a feeding behaviour. This result could be explained by the lack of exposure these animals had to the opposite sex, or by their mating status. Therefore, we investigated the social learning preferences of adult mated zebra finches. We found the same pattern of directed social learning of a different type of feeding behaviour (food colour): female zebra finches preferred the colour of food eaten by male demonstrators, whereas male zebra finches showed little evidence of any preference for the colour of food eaten by female demonstrators. Furthermore, we found that female observers' preferences were biased by demonstrators' relative feeding activity: the female demonstrator was only ever preferred if it ate less than its male counterpart. |
Address |
Institute of Evolutionary and Ecological Science, University of Leiden, Kaiserstraat 63, 2311GP, Leiden, The Netherlands |
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ISSN |
1435-9448 |
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Notes |
PMID:12658531 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2585 |
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Author |
Flack, J.C.; Girvan, M.; de Waal, F.B.M.; Krakauer, D.C. |
Title |
Policing stabilizes construction of social niches in primates |
Type |
Journal Article |
Year |
2006 |
Publication |
Nature |
Abbreviated Journal |
Nature |
Volume |
439 |
Issue |
7075 |
Pages |
426-429 |
Keywords |
Animals; Conflict (Psychology); Female; Macaca nemestrina/*physiology/*psychology; Male; Models, Biological; *Social Behavior |
Abstract |
All organisms interact with their environment, and in doing so shape it, modifying resource availability. Termed niche construction, this process has been studied primarily at the ecological level with an emphasis on the consequences of construction across generations. We focus on the behavioural process of construction within a single generation, identifying the role a robustness mechanism--conflict management--has in promoting interactions that build social resource networks or social niches. Using 'knockout' experiments on a large, captive group of pigtailed macaques (Macaca nemestrina), we show that a policing function, performed infrequently by a small subset of individuals, significantly contributes to maintaining stable resource networks in the face of chronic perturbations that arise through conflict. When policing is absent, social niches destabilize, with group members building smaller, less diverse, and less integrated grooming, play, proximity and contact-sitting networks. Instability is quantified in terms of reduced mean degree, increased clustering, reduced reach, and increased assortativity. Policing not only controls conflict, we find it significantly influences the structure of networks that constitute essential social resources in gregarious primate societies. The structure of such networks plays a critical role in infant survivorship, emergence and spread of cooperative behaviour, social learning and cultural traditions. |
Address |
Santa Fe Institute, Santa Fe, New Mexico 87501, USA. jflack@santafe.edu |
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ISSN |
1476-4687 |
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Notes |
PMID:16437106 |
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no |
Call Number |
refbase @ user @ |
Serial |
298 |
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Author |
Bernstein, I.S.; Dobrofsky, M. |
Title |
Compensatory social responses of older pigtailed monkeys to maternal separation |
Type |
Journal Article |
Year |
1981 |
Publication |
Developmental Psychobiology |
Abbreviated Journal |
Dev Psychobiol |
Volume |
14 |
Issue |
2 |
Pages |
163-168 |
Keywords |
Animals; Dependency (Psychology); Female; Macaca nemestrina; Male; *Maternal Deprivation; *Social Behavior |
Abstract |
Thirteen 3-5-year-old pigtailed monkeys were subjected to five 2-hr maternal separations while remaining in their normal social group. Significant changes in activity profiles were noted during separation and reunion phases. This suggests the continued social dependence of older offspring upon the matriarch. The shift in social activities reflected attempts by the juvenile and adolescent subjects to compensate for maternal absence by intensification of other affiliative social behavior and avoidance of potentially socially disruptive situation. The subjects oriented more towards kin in the absence of the matriarch, but actual time with kin decreased. Upon the return of the matriarch, the intensified some responses depressed during her absence and returned to preseparation social relationships. Play and aggressive responses declined whereas social approaches increased during maternal absences. Submissive responses declined upon the return of the matriarch, and play increased. The subjects also showed a marked, temporary increase of direct interaction, largely sniffing and grooming, with the matriarch upon her return. |
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ISSN |
0012-1630 |
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Notes |
PMID:7202854 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4171 |
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Author |
de Waal, F.B. |
Title |
Macaque social culture: development and perpetuation of affiliative networks |
Type |
Journal Article |
Year |
1996 |
Publication |
Journal of comparative psychology (Washington, D.C. : 1983) |
Abbreviated Journal |
J Comp Psychol |
Volume |
110 |
Issue |
2 |
Pages |
147-154 |
Keywords |
Animals; Dominance-Subordination; Female; Macaca mulatta/*psychology; Male; Maternal Behavior; *Peer Group; Sexual Behavior, Animal; *Social Behavior; Social Distance; *Social Environment |
Abstract |
Maternal affiliative relations may be transmitted to offspring, similar to the way in which maternal rank determines offspring rank. The development of 23 captive female rhesus monkeys (Macaca mulatta) was followed from the day of birth until adulthood. A multivariate analysis compared relations among age peers with affiliative relations, kinship, and rank distance among mothers. Maternal relations were an excellent predictor of affiliative relations among daughters, explaining up to 64% of the variance. Much of this predictability was due to the effect of kinship. However, after this variable had been controlled, significant predictability persisted. For relations of female subjects with male peers, on the other hand, maternal relations had no significant predictive value beyond the effect of kinship. One possible explanation of these results is that young rhesus females copy maternal social preferences through a process of cultural learning. |
Address |
Department of Psychology, Emory University, Atlanta, Georgia 30322, USA. dewaal@rmy.emory.edu |
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Edition |
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ISSN |
0735-7036 |
ISBN |
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Notes |
PMID:8681528 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
204 |
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Author |
de Waal, F.B.; Seres, M. |
Title |
Propagation of handclasp grooming among captive chimpanzees |
Type |
Journal Article |
Year |
1997 |
Publication |
American journal of primatology |
Abbreviated Journal |
Am. J. Primatol. |
Volume |
43 |
Issue |
4 |
Pages |
339-346 |
Keywords |
Animals; Family Relations; Female; *Grooming; Learning; Male; Pan troglodytes/*psychology; *Social Behavior |
Abstract |
A grooming posture previously reported for two wild chimpanzee (Pan troglodytes) communities developed spontaneously in a captive group of the same species. This offered a unique opportunity to follow the propagation of a new social custom. The posture consists of two partners grasping hands--either both right hands or both left hands--and raising the arms in an A-frame above their heads while mutually grooming with their free hands. The propagation of this pattern was followed over a 5 year period. In the beginning, handclasps were always initiated by the same adult female. This female initiated the posture mainly with her adult female kin. In subsequent years, these relatives became frequent participants in the posture with each other as well as with nonrelatives. Over the years the posture increased in frequency and duration and spread to the majority of adults and also to a few adolescents and older juveniles. The pattern persisted after removal of the apparent originator. |
Address |
Yerkes Primate Center, Emory University, Atlanta, GA 30329, USA. dewaal@emory.edu |
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ISSN |
0275-2565 |
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Notes |
PMID:9403098 |
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no |
Call Number |
refbase @ user @ |
Serial |
202 |
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Author |
Mori, U. |
Title |
Ecological and sociological studies of gelada baboons. Inter-unit relationships |
Type |
Journal Article |
Year |
1979 |
Publication |
Contributions to Primatology |
Abbreviated Journal |
Contrib Primatol |
Volume |
16 |
Issue |
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Pages |
83-92 |
Keywords |
Animals; Female; *Haplorhini; Leadership; Sex Factors; *Social Behavior; Social Distance; *Theropithecus |
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0301-4231 |
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PMID:101344 |
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Call Number |
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Serial |
2047 |
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Author |
Mori, U. |
Title |
Ecological and sociological studies of gelada baboons. Individual relationships within a unit |
Type |
Journal Article |
Year |
1979 |
Publication |
Contributions to Primatology |
Abbreviated Journal |
Contrib Primatol |
Volume |
16 |
Issue |
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Pages |
93-124 |
Keywords |
Animals; Female; Grooming; *Haplorhini; *Leadership; Male; Paternal Behavior; *Social Behavior; *Theropithecus |
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0301-4231 |
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PMID:101345 |
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no |
Call Number |
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Serial |
2046 |
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Author |
Mori, U. |
Title |
Ecological and sociological studies of gelada baboons. Unit formation and the emergence of a new leader |
Type |
Journal Article |
Year |
1979 |
Publication |
Contributions to Primatology |
Abbreviated Journal |
Contrib Primatol |
Volume |
16 |
Issue |
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Pages |
155-181 |
Keywords |
Animals; Female; Grooming; *Haplorhini; Leadership; Male; *Social Behavior; Social Distance; *Theropithecus |
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0301-4231 |
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Notes |
PMID:101335 |
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no |
Call Number |
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Serial |
2048 |
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