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    Sternal Gland Scent-Marking Signals Sex, Age, Rank, and Group Identity in Captive Mandrills.

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    Authors
    Vaglio, Stefano
    Minicozzi, Pamela
    Romoli, Riccardo
    Boscaro, Francesca
    Pieraccini, Giuseppe
    Moneti, Gloriano
    Moggi-Cecchi, Jacopo
    Issue Date
    2016-02
    
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    Abstract
    Mandrills are one of the few Old World primates to show scent-marking. We combined ethological and chemical approaches to improve our understanding of this behavior in 3 zoo-managed groups. We observed the olfactory behavior performed by adults and adolescents (N = 39) for 775h. We investigated the volatile components of sternal scent-marks using gas chromatography-mass spectrometry and compared volatile profiles with traits of the signaler. Males marked more than females and within each sex the frequency of scent-marking was related to age and dominance status, but alpha males scent-marked most frequently and particularly in specific areas at the enclosure boundaries. We identified a total of 77 volatile components of sternal gland secretion, including compounds functioning as male sex pheromones in other mammals, in scent-marks spontaneously released on filter paper by 27 male and 18 female mandrills. We confirmed our previous findings that chemical profiles contain information including sex, male age and rank, and we also found that odor may encode information about group membership in mandrills. Our results support the hypotheses that scent-marking signals the status of the dominant male as well as playing territorial functions but also suggest that it is part of sociosexual communication.
    Citation
    Sternal Gland Scent-Marking Signals Sex, Age, Rank, and Group Identity in Captive Mandrills. 2016, 41 (2):177-86 Chem. Senses
    Publisher
    Oxford University Press
    Journal
    Chemical senses ISSN 0379-864X
    URI
    http://hdl.handle.net/2436/601458
    DOI
    10.1093/chemse/bjv077
    PubMed ID
    26708734
    Additional Links
    http://chemse.oxfordjournals.org/content/early/2015/12/25/chemse.bjv077.short?rss=1
    Type
    Journal article
    Language
    en
    ISSN
    1464-3553
    0379-864X
    ae974a485f413a2113503eed53cd6c53
    10.1093/chemse/bjv077
    Scopus Count
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