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

dc.contributor.author Drea, Christine
dc.contributor.author Grebe, Nicholas
dc.contributor.author Fitzpatrick, Courtney
dc.contributor.author Sharrock, Katherine
dc.contributor.author Starling, Anne
dc.date.accessioned 2019-08-01T20:09:10Z
dc.date.available 2019-08-01T20:09:10Z
dc.date.issued 2019-07-02
dc.identifier S0018-506X(19)30083-2
dc.identifier.issn 0018-506X
dc.identifier.issn 1095-6867
dc.identifier.uri https://hdl.handle.net/10161/19149
dc.description.abstract 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 androgen concentrations in 24 lemurs (8 males, 16 females) from infancy to early adulthood, and assessed their 'prenatal' androgen milieu using serum samples obtained from their mothers during gestation. Because logistical constraints limited the frequency of infant blood sampling, we accounted for asynchrony between behavioral and postnatal hormone measurements via imputation procedures. Imputation was unnecessary for prenatal hormone measurements. The typical sex difference in androgen concentrations in young lemurs was consistent with adult conspecifics and most other mammals; however, we found no significant sex differences in rough-and-tumble play. Female (but not male) aggression increased beginning at approximately 15 months, coincident with female puberty. In our analyses relating sexually differentiated behavior to androgens, we found no relationship with activational hormones, but several significant relationships with organizational hormones. Notably, associations of prenatal androstenedione and testosterone with behavior were differentiated, both by offspring sex and by type of behavior within offspring sexes. We discuss the importance of considering (1) missing data in behavioral endocrinology research, and (2) organizational androgens other than testosterone in studies of female dominance.
dc.language eng
dc.publisher Elsevier BV
dc.relation.ispartof Hormones and behavior
dc.relation.isversionof 10.1016/j.yhbeh.2019.07.002
dc.subject Aggression
dc.subject Androstenedione
dc.subject Female dominance
dc.subject Imputation models
dc.subject Masculinization
dc.subject Play
dc.subject Strepsirrhine primate
dc.subject Testosterone
dc.title Organizational and activational androgens, lemur social play, and the ontogeny of female dominance.
dc.type Journal article
duke.contributor.id Drea, Christine|0230541
duke.contributor.id Grebe, Nicholas|0724718
dc.date.updated 2019-08-01T20:09:10Z
pubs.begin-page 104554
pubs.organisational-group Trinity College of Arts & Sciences
pubs.organisational-group Duke
pubs.organisational-group Biology
pubs.organisational-group Evolutionary Anthropology
pubs.organisational-group Duke Science & Society
pubs.organisational-group Initiatives
pubs.organisational-group Institutes and Provost's Academic Units
pubs.organisational-group Duke Institute for Brain Sciences
pubs.organisational-group University Institutes and Centers
pubs.organisational-group Staff
pubs.publication-status Published
pubs.volume 115


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