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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Primates 26 (1985), S. 343-360 
    ISSN: 0032-8332
    Keywords: Pan troglodytes schweinfurthii ; Social play ; Play context ; Metacommunication
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Social play of juvenile and adolescent chimpanzees (Pan troglodytes schweinfurthii) in the Mahale Mountains National Park, Tanzania, was studied, by analyzing processes of play and interindividual relationships in play. The results are discussed in relation to communication mechanisms. Play was initiated in several ways. Communication about play seems to depend on the receiver's interpretation: They can interpret the sender's behavior as play, referring to (1) play signals accompanied by the behavior, (2) transformation of the behavior in timing, strength, or rhythm, and (3) situation of the occurrence. Initiation attempts sometimes failed because one hesitated in playing with the other. Although the stronger often reduced his/her activity during play, play tended to escalate in activity. Players may enjoy such escalation. Play also had a mechanism not to escalate into fighting. Play was influenced by individuals other than the players. The third party's movement often affected the players' interaction. The term play does not indicate a behavior itself but the context of the behavior: The players interpret their behaviors in their play context.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Primates 25 (1984), S. 127-129 
    ISSN: 0032-8332
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Primates 24 (1983), S. 139-153 
    ISSN: 0032-8332
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract This study reports on the social interactions of juvenile Japanese monkeys (1–5 years old) living in their natural habitat. Juvenile males preferred to associate and play with males of the same age. Male-male interactions initiated by a subordinate of the same age or by an older frequently involved play. Juvenile females tended to interact with younger individuals, and to avoid older males. Older females (4–5 years old) tended to avoid one another. Sibling pairs had high frequencies of interaction, although the occurrences of particular types of interactions varied from pair to pair. Patterns of social relations among adults are discussed in relation to juvenile behavior.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 0032-8332
    Keywords: Pan troglodytes schweinfurthii ; Dominance ; Pant-grunt ; Aggression ; Coexistence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Dominance relationships among male chimpanzees in the Mahale Mountains National Park, Tanzania, were analyzed. Although all adolescent males were unequivocally subordinate to all adult males, dominance relationships within the age classes were much less clear. Especially among adolescent males, few pant-grunts or agonistic interactions occurred. While adolescent males frequently pant-grunted at adult males, these latter males, except the alpha and the youngest, rarely pant-grunted to one another. This suggests that a difference of social status exists between adolescent and adult males. Adult males rarely display overt dominance to one another probably because the presence of other males affects their interactions. Moreover, they seem to try to keep their dominance relationship ambiguous when making it overt is not advantageous to them. This may be a political way for males to coexist with one another in a unit-group.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Primates 29 (1988), S. 147-161 
    ISSN: 0032-8332
    Keywords: Pan troglodytes schweinfurthii ; Social behaviour ; Association ; Juvenile ; Adolescent
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Association partners of young chimpanzees at the Mahale Mountains National Park were analyzed. Juvenile and adolescent chimpanzees associated frequently with their mothers, although mother-offspring association decreased as the offspring grew up. Males tended to leave their mothers and associate with adult males, while females remained frequently associating with their mothers in early adolescence. In late adolescence and young adulthood, males usually associated with adult males and cycling adult females. Females may transfer into neighboring unit-groups in this stage. Although an immigrant female tended to be alone when her estrous cycle stopped, she associated with many individuals, in particular with adult males, when she resumed cycling. Some orphans were observed to associate frequently with particular adults. The findings were discussed in relation to the unique characteristics of chimpanzee social system.
    Type of Medium: Electronic Resource
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