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Baby on board: olfactory cues indicate pregnancy and fetal sex in a non-human primate.

dc.contributor.author Crawford, Jeremy Chase
dc.contributor.author Drea, Christine M
dc.coverage.spatial England
dc.date.accessioned 2015-02-25T20:20:02Z
dc.date.issued 2015-02
dc.identifier http://www.ncbi.nlm.nih.gov/pubmed/25716086
dc.identifier rsbl.2014.0831
dc.identifier.uri https://hdl.handle.net/10161/9493
dc.description.abstract Olfactory cues play an integral, albeit underappreciated, role in mediating vertebrate social and reproductive behaviour. These cues fluctuate with the signaller's hormonal condition, coincident with and informative about relevant aspects of its reproductive state, such as pubertal onset, change in season and, in females, timing of ovulation. Although pregnancy dramatically alters a female's endocrine profiles, which can be further influenced by fetal sex, the relationship between gestation and olfactory cues is poorly understood. We therefore examined the effects of pregnancy and fetal sex on volatile genital secretions in the ring-tailed lemur (Lemur catta), a strepsirrhine primate possessing complex olfactory mechanisms of reproductive signalling. While pregnant, dams altered and dampened their expression of volatile chemicals, with compound richness being particularly reduced in dams bearing sons. These changes were comparable in magnitude with other, published chemical differences among lemurs that are salient to conspecifics. Such olfactory 'signatures' of pregnancy may help guide social interactions, potentially promoting mother-infant recognition, reducing intragroup conflict or counteracting behavioural mechanisms of paternity confusion; cues that also advertise fetal sex may additionally facilitate differential sex allocation.
dc.language eng
dc.publisher The Royal Society
dc.relation.ispartof Biol Lett
dc.relation.isversionof 10.1098/rsbl.2014.0831
dc.subject chemosignal
dc.subject gestation
dc.subject hormone
dc.subject olfactory communication
dc.subject reproductive signal
dc.subject sex allocation
dc.subject Animal Communication
dc.subject Animals
dc.subject Cues
dc.subject Female
dc.subject Genitalia, Female
dc.subject Lemur
dc.subject Male
dc.subject Odorants
dc.subject Pregnancy
dc.subject Volatile Organic Compounds
dc.title Baby on board: olfactory cues indicate pregnancy and fetal sex in a non-human primate.
dc.type Journal article
duke.contributor.id Drea, Christine M|0230541
pubs.author-url http://www.ncbi.nlm.nih.gov/pubmed/25716086
pubs.begin-page 20140831
pubs.issue 2
pubs.organisational-group Duke
pubs.organisational-group Duke Institute for Brain Sciences
pubs.organisational-group Duke Science & Society
pubs.organisational-group Evolutionary Anthropology
pubs.organisational-group Initiatives
pubs.organisational-group Institutes and Provost's Academic Units
pubs.organisational-group Trinity College of Arts & Sciences
pubs.organisational-group University Institutes and Centers
pubs.publication-status Published
pubs.volume 11
dc.identifier.eissn 1744-957X


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