期刊
QUARTERLY REVIEW OF BIOLOGY
卷 81, 期 1, 页码 3-32出版社
UNIV CHICAGO PRESS
DOI: 10.1086/503922
关键词
dominance; sibling conflict; assessment; aggression; individual recognition; trained losing
类别
Drawing on. the concepts and theory of dominance in adult vertebrates, this article categorizes the relationships of dominance between infant siblings, identifies the behavioral mechanisms that give rise to those relationships, and proposes a model to explain their evolution. Dominance relationships in avian broods can be classified according to the agonistic roles of dominants and subordinates as aggression-submission, aggression-resistance, aggression-aggression, aggression-avoidance, rotating dominance, and flock dominance. These relationships differ mainly in the submissiveness/pugnacity of subordinates, which is pivotal, and in the specficity/generality of the learning processes that underlie them. As in the dominance hierarchies of adult vertebrates, agonistic roles are engendered and maintained by several mechanisms, including differential fighting ability, assessment, trained winning and losing (especially in altricial species), learned individual relationships (especially in precocial species), site-specific learning, and probably group-level effects. An evolutionary framework in which the species-typical dominance relationship is determined by feeding made, confinement, cost of subordination, and capacity for individual recognition, can be extended to mammalian litters and account for the aggression-submission and aggression-resistance observed in distinct populations of spotted hyenas and the site-specific dominance (teat ownership) of some pigs, felids, and hyraxes. Little is known about agonism in the litters of other mammals or broods of poikilotherms, but some species of fish and crocodilians have the Potential for dominance among broodmates.
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