Using sexual dimorphism and development to reconstruct mating systems in ancient primates

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Scopus citations

Abstract

Male and female interactions are often reconstructed for fossil primates for a number of reasons: To argue that a particular social system is the primitive or ancestral form; to investigate the evolution of mating systems; to examine the potential for infanticide and female counterstrategies; and to study how behaviors like sexual selection and mate choice may have influenced primate speciation. Behavioral reconstruction from fossils is extremely limited. Yet, sexual dimorphism has been used since the 1980s to infer polygynous mating systems in early anthropoids like Aegyptopithecus. Rates of growth can be studied from fossil remains using a number of techniques. Despite extensive study, living primates show no good link between degree of dimorphism and social structure. Group composition can be analyzed for fossil primates (including humans) in a few rare cases. In addition to maturation rates in fossils and comparative soft-tissue evidence from living primates, group composition allows a rough outline of social structure to be reconstructed for a limited number of fossil primates. Much more attention has been directed to fossil humans, especially given the existence of multiple hominid species, and sympatry between some early species. The degree of sexual dimorphism in fossil hominids has been used to document hominid status itself and increasing hominization through time, and to infer behaviors such as pair-bonding.

Original languageEnglish (US)
Title of host publicationPrimatology
Subtitle of host publicationTheories, Methods and Research
PublisherNova Science Publishers, Inc.
Pages75-94
Number of pages20
ISBN (Electronic)9781614706168
ISBN (Print)9781607418528
StatePublished - Jan 1 2010

All Science Journal Classification (ASJC) codes

  • Agricultural and Biological Sciences(all)

Keywords

  • Fossil primates
  • Hominization
  • Mating systems
  • Maturation rates
  • Sexual dimorphism
  • Sperm competition

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  • Cite this

    Cachel, S. (2010). Using sexual dimorphism and development to reconstruct mating systems in ancient primates. In Primatology: Theories, Methods and Research (pp. 75-94). Nova Science Publishers, Inc..