Organizational and activational androgens, lemur social play, and the ontogeny of female dominance

  title={Organizational and activational androgens, lemur social play, and the ontogeny of female dominance},
  author={Nicholas M. Grebe and Courtney L. Fitzpatrick and Katherine C B Sharrock and Anne P. Starling and Christine M. Drea},
  journal={Hormones and Behavior},
The role of androgens in shaping "masculine" traits in males is a core focus in behavioral endocrinology, but relatively little is known about an androgenic role in female aggression and social dominance. In mammalian models of female dominance, including the ring-tailed lemur (Lemur catta), links to androgens in adulthood are variable. We studied the development of ring-tailed lemurs to address the behavioral basis and ontogenetic mechanisms of female dominance. We measured behavior and serum… Expand
4 Citations
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It is shown that matriarchs express peak androgen concentrations during late gestation, when displaying peak feeding competition, dominance, and evictions, and relative to subordinates, produce offspring that are more aggressive in early development, implicate androgen-mediated aggression in the operation of female sexual selection, and intergenerational transmission of ‘masculinised’ phenotypes in the evolution of meerkat cooperative breeding. Expand
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  • Medicine, Biology
  • Philosophical Transactions of the Royal Society B
  • 2020
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Androgen levels and female social dominance in Lemur catta
It is concluded that female dominance in ring–tailed lemurs is neither based on physical superiority nor on high androgen levels and that it is equally important to study male subordination and prenatal brain priming effects for a complete understanding of this phenomenon. Expand
Sex and seasonal differences in aggression and steroid secretion in Lemur catta: Are socially dominant females hormonally ‘masculinized’?
  • C. Drea
  • Biology, Medicine
  • Hormones and Behavior
  • 2007
Endocrine profiles and social interaction in the ringtailed lemur (Lemur catta), a species characterized by extreme masculinization of the female, are examined to search for a potential source of circulating androgen in adult females and an endocrine correlate of female dominance or its proxy, aggression. Expand
Endocrine Mediators of Masculinization in Female Mammals
Most mammal species show traditional patterns of sexual dimorphism (e.g., greater male size and aggression), the proximal mechanism of which involves the male's greater pre- and postnatal exposure toExpand
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A more pervasive role for androgens in adult social behavior than is often recognized is shown, with possible relevance for understanding tradeoffs in cooperative systems. Expand
Female rule in lemurs is ancestral and hormonally mediated
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Behavioral masculinization is independent of genital masculinization in prenatally androgenized female rhesus macaques
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Hormonal influences on sexually differentiated behavior in nonhuman primates
  • K. Wallen
  • Psychology, Medicine
  • Frontiers in Neuroendocrinology
  • 2005
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The influence of androgenic steroid hormones on female aggression in ‘atypical’ mammals
A select few species of mammals in which females are as or more aggressive than males, and/or are dominant to males, are explored, and the role of androgenic hormones in mediating this important difference is explored. Expand
Rank-related maternal effects of androgens on behaviour in wild spotted hyaenas
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Exceptional endocrine profiles characterise the meerkat: sex, status, and reproductive patterns
Female meerkats are strongly hormonally masculinised, possibly via A4’s bioavailability for conversion to T, and raised androgen concentrations may explain female aggressiveness in this species and give dominant breeders a heritable mechanism for their daughters’ competitive edge. Expand