NDLI: Kinship Bonds Are Not Necessary for Maintaining Matrilineal Rank in Captive Japanese Macaques

Content Provider	Springer Nature Link
Author	Chapais, Bernard St Pierre, Claude Eric G.
Copyright Year	1997
Abstract	Although kinship is of central importance in matrilineal (nepotistic) dominance systems, various lines of evidence indicate that its role has probably been overestimated. For example, alliances among nonkin, patterned on the basis of dominance per se, contribute to the maintenance of rank and to the remarkable stability of matrilineal rank orders. But because kin and nonkin alliances exert their stabilizing effects on the rank order simultaneously, the effect of nonkin alliances per se is unknown. We tested whether nonkin alliances are sufficient to ensure the stability of matrilineal rank relations in a laboratory-housed group of Japanese macaques (Macaca fuscata). We first created a group composed of two female subgroups: (1) a subordinate subgroup of close kin known to constitute an effective revolutionary alliance and (2) a dominant subgroup composed mostly of nonkin and distant kin known to support each other against lower-ranking females. In the course of 12 consecutive experimental manipulations, we reduced progressively the relative power of the dominant subgroup by manipulating its size and age composition. The members of the dominant subgroup maintained their rank in all experimental situations except when alone. Thus, nonkin alliances remained effective up to extremely pronounced levels of power imbalance. These results suggest that the remarkable stability of matrilineal rank orders is not conditional upon the existence of nepotistic alliances and strong matrilines of close kin.
Starting Page	375
Ending Page	385
Page Count	11
File Format	PDF
ISSN	01640291
Journal	International Journal of Primatology
Volume Number	18
Issue Number	3
e-ISSN	15738604
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	1997-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Human Genetics Evolutionary Biology Anthropology/Archaeometry
Content Type	Text
Resource Type	Article
Subject	Animal Science and Zoology Ecology, Evolution, Behavior and Systematics

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