Testicular volume and reproductive status of Wild Callithrix jacchus

dc.contributor.authorAraújo, Arrilton
dc.contributor.authorSousa, Maria Bernardete Cordeiro de
dc.date.accessioned2010-08-13T19:12:10Z
dc.date.available2010-08-13T19:12:10Z
dc.date.issued2008
dc.descriptionARAÚJO, Arrilton ; SOUSA, Maria Bernardete Cordeiro . Testicular volume and reproductive status of Wild Callithrix jacchus. International Journal of Primatology, v.29, p.1355–1364, 2008. DOI 10.1007/s10764-008-9291-4pt_BR
dc.description.abstractThe social relationship dynamic among callitrichid females is well known. Breeding exclusivity by dominant females involves female-female competition, usually resulting in the inhibition of subordinate reproduction. However, the strategies to maintain the male breeding position are still unclear. Researchers have observed no overt aggression between males, and differences in testosterone levels between dominant and subordinate individuals do not correlate with differences in reproductive success. In Callithrix monogamy is the predominant mating system, and testicular size is compatible with the absence of sperm competition. We analyzed testicular volume during development in 95 individuals at different ages (infant n= 12, juvenile n=9, subadult n=15, and adult n=59). We also investigated if the ratio between testicular volume and body mass correlates with breeding position in the social group. The ratio was significantly higher in breeding males and a positive correlation between body mass and testicular volume is significant only for nonbreeding males. The findings suggest that testicular size varies with male reproductive status in the social group and that the enlargement of testicular volume in breeding common marmoset males seems to be a result of proximate causes and to depend on social and reproductive contexts acting together or separatelypt_BR
dc.identifier.citationARAÚJO, Arrilton ; SOUSA, Maria Bernardete Cordeiro . (2008)pt_BR
dc.identifier.urihttps://repositorio.ufrn.br/jspui/handle/1/37
dc.language.isoporpt_BR
dc.publisherInternational Journal of Primatologypt_BR
dc.rightsAcesso Aberto
dc.subjectPrimatas - Sagüi comum selvagempt_BR
dc.subjectSagüi comum selvagem - Estratégias reprodutivaspt_BR
dc.subjectSagüi comum selvagem - Testicular /massa corporalpt_BR
dc.subjectPrimates - Wild common marmosetpt_BR
dc.subjectWild common marmoset - Male reproductive strategiespt_BR
dc.subjectWild common marmoset - testis/body mass ratiopt_BR
dc.titleTesticular volume and reproductive status of Wild Callithrix jacchuspt_BR
dc.typearticlept_BR

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