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Sexual Size Dimorphism, Canine Dimorphism, and Male-Male Competition in Primates: Where Do Humans Fit In?

Human nature (Hawthorne, N.Y.), 2012-03, Vol.23 (1), p.45-67 [Peer Reviewed Journal]

Springer Science + Business Media, LLC 2012 ;COPYRIGHT 2012 Springer ;ISSN: 1045-6767 ;EISSN: 1936-4776 ;DOI: 10.1007/s12110-012-9130-3 ;PMID: 22388772

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Title:
Sexual Size Dimorphism, Canine Dimorphism, and Male-Male Competition in Primates: Where Do Humans Fit In?
Author: Plavcan, J. Michael
Subjects: Aggression - physiology ; Analysis ; Animals ; Anthropology ; Behavioral Sciences ; Biological Evolution ; Biological Psychology ; Body Composition ; Body Size ; Competitive Behavior - physiology ; Cuspid - anatomy & histology ; Evolutionary biology ; Female ; Fossil hominids ; Fossils ; Hominidae - anatomy & histology ; Humans ; Male ; Marriage ; Phylogeny ; Selection, Genetic ; Sex Characteristics ; Sexual Behavior - physiology ; Sexual Behavior, Animal - physiology ; Social Sciences ; Violence
Is Part Of: Human nature (Hawthorne, N.Y.), 2012-03, Vol.23 (1), p.45-67
Description: Sexual size dimorphism is generally associated with sexual selection via agonistic male competition in nonhuman primates. These primate models play an important role in understanding the origins and evolution of human behavior. Human size dimorphism is often hypothesized to be associated with high rates of male violence and polygyny. This raises the question of whether human dimorphism and patterns of male violence are inherited from a common ancestor with chimpanzees or are uniquely derived. Here I review patterns of, and causal models for, dimorphism in humans and other primates. While dimorphism in primates is associated with agonistic male mate competition, a variety of factors can affect male and female size, and thereby dimorphism. The causes of human sexual size dimorphism are uncertain, and could involve several non-mutually-exclusive mechanisms, such as mate competition, resource competition, intergroup violence, and female choice. A phylogenetic reconstruction of the evolution of dimorphism, including fossil hominins, indicates that the modern human condition is derived. This suggests that at least some behavioral similarities with Pan associated with dimorphism may have arisen independently, and not directly from a common ancestor.
Publisher: Boston: Springer US
Language: English
Identifier: ISSN: 1045-6767
EISSN: 1936-4776
DOI: 10.1007/s12110-012-9130-3
PMID: 22388772
Source: ProQuest One Psychology
MEDLINE
Alma/SFX Local Collection
ProQuest Central

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Sexual Size Dimorphism, Canine Dimorphism, and Male-Male Competition in Primates: Where Do Humans Fit In?

Springer Science + Business Media, LLC 2012 ;COPYRIGHT 2012 Springer ;ISSN: 1045-6767 ;EISSN: 1936-4776 ;DOI: 10.1007/s12110-012-9130-3 ;PMID: 22388772

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