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Author |
Prud`homme, J.; Chapais, B. |
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Title |
Development of intervention behavior in Japanese macaques: Testing the targeting hypothesis |
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Journal Article |
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Year |
1996 |
Publication |
International Journal of Primatology |
Abbreviated Journal |
Int. J. Primatol. |
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Volume |
17 |
Issue |
3 |
Pages |
429-443 |
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Biomedical and Life Sciences |
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Abstract |
Matrilineal dominance systems, which characterize several species of cercopithecines, are determined largely by the patterning of third-party aggressive interventions in conflicts. Although the role of interventions in structuring rank relations has received much attention, very few studies have dealt specifically with the development of intervention behavior. In other words,most studies have focused on the interventions received and their effect on the recipients rather than on the interventions performed and the goals of the interveners. We analyzed the intervention behavior of 10 juvenile females in a colony of 40 Japanese macaques (Macaca fuscata)housed at the University of Montreal Laboratory of Behavioral Primatology. The analysis of 749 interventions performed by the juveniles over their first 4 years and 2425 interventions received over the same period reveals that (1) juvenile females intervened selectively against females ranking below their mother, (2) they began to intervene at about the same time that they began to challenge the latter females in dyadic contests, (3) they sided with females as well as with males against these females, (4) juvenile interveners incurred little risks in terms of aggressive retaliation from their targets, (5) they derived immediate benefits in terms of conflicts won over stronger targets, (6) interventions often did not take place when the possible recipients needed support, and (7) interveners did not conform to a pattern of mutually preferential support. These results support the view that interventions by juveniles are selfish (vs altruistic) and constitute a low-cost and effective means to target and to outrank prospectively subordinate females. |
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Springer Netherlands |
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0164-0291 |
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Equine Behaviour @ team @ |
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5245 |
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Author |
Silk, J.B. |
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Title |
Kin Selection in Primate Groups |
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Journal Article |
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Year |
2002 |
Publication |
International Journal of Primatology |
Abbreviated Journal |
Int. J. Primatol. |
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Volume |
23 |
Issue |
4 |
Pages |
849-875 |
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Keywords |
Biomedical and Life Sciences |
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Abstract |
Altruism poses a problem for evolutionary biologists because natural selection is not expected to favor behaviors that are beneficial to recipients, but costly to actors. The theory of kin selection, first articulated by Hamilton (1964), provides a solution to the problem. Hamilton's well-known rule (br > c) provides a simple algorithm for the evolution of altruism via kin selection. Because kin recognition is a crucial requirement of kin selection, it is important to know whether and how primates can recognize their relatives. While conventional wisdom has been that primates can recognize maternal kin, but not paternal kin, this view is being challenged by new findings. The ability to recognize kin implies that kin selection may shape altruistic behavior in primate groups. I focus on two cases in which kin selection is tightly woven into the fabric of social life. For female baboons, macaques, and vervets maternal kinship is an important axis of social networks, coalitionary activity, and dominance relationships. Detailed studies of the patterning of altruistic interactions within these species illustrate the extent and limits of nepotism in their social lives. Carefully integrated analyses of behavior, demography, and genetics among red howlers provide an independent example of how kin selection shapes social organization and behavior. In red howlers, kin bonds shape the life histories and reproductive performance of both males and female. The two cases demonstrate that kin selection can be a powerful source of altruistic activity within primate groups. However, to fully assess the role of kin selection in primate groups, we need more information about the effects of kinship on the patterning of behavior across the Primates and accurate information about paternal kin relationships. |
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Springer Netherlands |
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0164-0291 |
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Equine Behaviour @ team @ |
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5247 |
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Erhart, E.; Overdorff, D. |
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Title |
Female Coordination of Group Travel in Wild Propithecus and Eulemur |
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Journal Article |
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Year |
1999 |
Publication |
International Journal of Primatology |
Abbreviated Journal |
Int. J. Primatol. |
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Volume |
20 |
Issue |
6 |
Pages |
927-940-940 |
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Keywords |
Biomedical and Life Sciences |
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Abstract |
Coordination of primate group movements by individual group members is generally categorized as leadership behavior, which entails several steps: deciding where to move next, initiating travel, and leading a group between food, water sources, and rest sites. Presumably, leaders are able to influence their daily foraging efficiency and nutritional intake, which could influence an individual's feeding ecology and long-term reproductive success. Within anthropoid species, females lead group movements in most female-bonded groups, while males lead groups in most nonfemale-bonded groups. Group leadership has not been described for social prosimians, which are typically not female-bonded. We describe group movements in two nonfemale-bonded, lemurid species living in southeastern Madagascar, Propithecus diadema edwardsi and Eulemur fulvus rufus. Although several social lemurids exhibit female dominance Eulemur fulvus rufus does not, and evidence for female dominance is equivocal in Propithecus diadema edwardsi. Given the ecological stresses that females face during reproduction, we predict that females in these two species will implement alternative behavioral strategies such as group leadership in conjunction with, or in the absence of, dominance interactions to improve access to food. We found that females in both species initiated and led group movements significantly more often than males did. In groups with multiple females, one female was primarily responsible for initiating and leading group movements. We conclude that female nutritional needs may determine ranging behavior to a large extent in these prosimian species, at least during months of gestation and lactation. |
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Springer Netherlands |
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0164-0291 |
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Equine Behaviour @ team @ |
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5308 |
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Author |
Sterling, E.J.; Povinelli, D.J. |
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Title |
Tool use, aye-ayes, and sensorimotor intelligence |
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Journal Article |
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Year |
1999 |
Publication |
Folia Primatologica; International Journal of Primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
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Volume |
70 |
Issue |
1 |
Pages |
8-16 |
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Keywords |
Animals; *Behavior, Animal; Feeding Behavior; Female; *Intelligence; Male; Problem Solving; *Psychomotor Performance; Strepsirhini/*physiology/psychology |
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Abstract |
Humans, chimpanzees, capuchins and aye-ayes all display an unusually high degree of encephalization and diverse omnivorous extractive foraging. It has been suggested that the high degree of encephalization in aye-ayes may be the result of their diverse, omnivorous extractive foraging behaviors. In combination with certain forms of tool use, omnivorous extractive foraging has been hypothesized to be linked to higher levels of sensorimotor intelligence (stages 5 or 6). Although free-ranging aye-ayes have not been observed to use tools directly in the context of their extractive foraging activities, they have recently been reported to use lianas as tools in a manner that independently suggests that they may possess stage 5 or 6 sensorimotor intelligence. Although other primate species which display diverse, omnivorous extractive foraging have been tested for sensorimotor intelligence, aye-ayes have not. We report a test of captive aye-ayes' comprehension of tool use in a situation designed to simulate natural conditions. The results support the view that aye-ayes do not achieve stage 6 comprehension of tool use, but rather may use trial-and-error learning to develop tool-use behaviors. Other theories for aye-aye encephalization are considered. |
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Deutsches Primatenzentrum, Gottingen, Germany |
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English |
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0015-5713 |
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Notes |
PMID:10050062 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4178 |
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Author |
Brosnan, S.F.; de Waal, F.B.M. |
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Title |
A concept of value during experimental exchange in brown capuchin monkeys, Cebus apella |
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Journal Article |
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Year |
2004 |
Publication |
Folia primatologica; international journal of primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
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Volume |
75 |
Issue |
5 |
Pages |
317-330 |
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Keywords |
Animals; Cebus/*psychology; *Choice Behavior; Female; Food Preferences; *Learning; Male; Sex Factors; Statistics, Nonparametric; *Token Economy; Video Recording |
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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. |
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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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0015-5713 |
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PMID:15486443 |
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refbase @ user @ |
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170 |
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Author |
de Waal, F.B.; Luttrell, L.M. |
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Title |
The similarity principle underlying social bonding among female rhesus monkeys |
Type |
Journal Article |
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Year |
1986 |
Publication |
Folia primatologica; international journal of primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
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Volume |
46 |
Issue |
4 |
Pages |
215-234 |
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Keywords |
Aggression; Animals; Dominance-Subordination; Female; Grooming; *Group Processes; Macaca/*physiology; Macaca mulatta/*physiology; Male; *Object Attachment |
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Abstract |
Twenty adult female rhesus monkeys (Macaca mulatta) were observed over a three-year period. They lived in a mixed captive group with kinship relations known for three generations. The study's aim was to test Seyfarth's [J. theor. Biol. 65: 671-698, 1977] model of rank-related grooming and to investigate two other possible determinants of social bonding, i.e. relative age and the group's stratification into two social classes. Data on affiliation, coalitions, and social competition were collected by means of both focal observation and instantaneous time sampling. Whereas certain elements of the existing model were confirmed, its explanatory principles were not. Social competition did not result in more contact among close-ranking females (the opposite effect was found), and the relation between affiliative behavior and coalitions was more complex than predicted. Based on multivariate analyses and a comparison of theoretical models, we propose a simpler, more encompassing principle underlying interfemale attraction. According to this 'similarity principle', rhesus females establish bonds with females whom they most resemble. The similarity may concern genetical and social background, age, hierarchical position and social class. Effects of these four factors were independently demonstrated. The most successful model assumed that similarity factors influence female bonding in a cumulative fashion. |
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0015-5713 |
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PMID:3557225 |
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refbase @ user @ |
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211 |
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Author |
Rudran, R. |
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Title |
Adult male replacement in one-male troops of purple-faced langurs (Presbytis senex senex) and its effect on population structure |
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Journal Article |
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Year |
1973 |
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Folia Primatologica; International Journal of Primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
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19 |
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2 |
Pages |
166-192 |
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Keywords |
Age Factors; Aggression; Animals; *Behavior, Animal; Female; *Haplorhini; Humans; Leadership; Male; Maternal Behavior; Population Density; Sex Factors; *Social Behavior; Social Dominance |
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0015-5713 |
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PMID:4201908 |
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Equine Behaviour @ team @ |
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4182 |
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Author |
Hrdy, S.B. |
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Title |
Male-male competition and infanticide among the langurs (Presbytis entellus) of Abu, Rajasthan |
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Journal Article |
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Year |
1974 |
Publication |
Folia Primatologica; International Journal of Primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
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Volume |
22 |
Issue |
1 |
Pages |
19-58 |
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Keywords |
Aggression; Animals; Animals, Newborn; Coitus; *Competitive Behavior; Estrus; Feeding Behavior; Female; *Haplorhini; Homing Behavior; Humans; India; Infanticide; Leadership; Male; Maternal Behavior; Population Density; Pregnancy; Rain; Seasons; Sex Factors; Sexual Behavior, Animal; Social Behavior; Temperature; Vocalization, Animal |
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0015-5713 |
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PMID:4215710 |
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2051 |
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Author |
Alexander, B.K.; Bowers, J.M. |
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Title |
Social organization of a troop of Japanese monkeys in a two-acre enclosure |
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Journal Article |
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Year |
1969 |
Publication |
Folia Primatologica; International Journal of Primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
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10 |
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3 |
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230-242 |
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Animals; *Behavior, Animal; *Haplorhini; Leadership; *Social Behavior |
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0015-5713 |
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PMID:4976202 |
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2055 |
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Author |
Saayman, G.S. |
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Title |
Behaviour of the adult males in a troop of free-ranging Chacma baboons (Papio ursinus) |
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Journal Article |
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Year |
1971 |
Publication |
Folia Primatologica; International Journal of Primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
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15 |
Issue |
1 |
Pages |
36-57 |
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Aggression; Animals; *Behavior, Animal; Female; Grooming; *Haplorhini; Homing Behavior; Humans; Leadership; Male; Papio; Pregnancy; Sex Factors; *Sexual Behavior, Animal; Social Dominance |
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0015-5713 |
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PMID:5003339 |
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2053 |
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