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Allogrooming, partner choice, and dominance in male anubis baboons
Author(s) -
Easley Stephen Phillip,
Coelho Anthony M.,
Taylor Linda L.
Publication year - 1989
Publication title -
american journal of physical anthropology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.146
H-Index - 119
eISSN - 1096-8644
pISSN - 0002-9483
DOI - 10.1002/ajpa.1330800309
Subject(s) - social grooming , dominance (genetics) , kinship , captivity , biology , dominance hierarchy , demography , psychology , social psychology , aggression , zoology , genetics , sociology , gene , anthropology
This study was designed to test the hypothesis that among unrelated male baboons ( Papio cynocephalus anubis ) in single‐gender social groups there is no significant association between dominance status and allogrooming performance. The hypothesis was tested using behavioral measures obtained by focal animal sampling techniques. The results indicate that unrelated male baboons established well‐defined linear dominance hierarchies, formed allogrooming relationships with one another, and exhibited a nonrandom distribution of allogrooming; however, there were no significant relationships between dominance rank and the frequency of allogrooming. We further tested our results by grouping individuals into three dominance status classes (high, middle, and low) and comparing the classes. Analysis of variance demonstrated no significant differences in rates of allogrooming by dominance class. These results suggest that dominance did not account for the variation in observed allogrooming behavior: Dominance status did not appear to determine the frequency with which animals groomed others, the number of grooming partners, or frequency of grooming that any individual received in comparison to that performed. High‐ranking animals did not have significantly more grooming partners than low‐ranking animals, and there appeared to be little competition within the groups for subordinates to groom high‐ranking animals. When age, kinship, and group tenure are controlled, performance and reception of allogrooming are not strongly associated with dominance in single‐gender social groups of male anubis baboons.