The timing of ovulation with respect to sexual swelling detumescence in wild olive baboons

James P. Higham, Michael Heistermann, Caroline Ross, Stuart Semple, Ann MacLarnon

    Research output: Contribution to journalArticle

    Abstract

    Baboon researchers commonly use the timing of sexual swelling detumescence to infer the timing of ovulation. These estimates are then used for a variety of purposes, including the interpretation of male and female behaviour, assessment of likely paternity, and the calculation of gestation lengths. Although captive studies have measured the timing of ovulation with respect to detumescence, this has not been measured in wild baboons. Here, we use observational data on female sexual swellings, and hormonal data measured from faeces, to investigate the timing of ovulation with respect to detumescence in wild olive baboons. Our data show similar variability in the timing of ovulation with respect to detumescence as that produced by captive studies, although there are some notable differences, including the absence of any ovulations measured on or after the day of swelling detumescence. We discuss the importance of our results for baboon researchers using swellings to infer ovulation as part of their studies.

    Original languageEnglish (US)
    Pages (from-to)295-299
    Number of pages5
    JournalPrimates
    Volume49
    Issue number4
    DOIs
    StatePublished - Sep 24 2008

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    Keywords

    • Faecal hormone analysis
    • Olive baboons
    • Sexual swelling
    • Timing of ovulation

    ASJC Scopus subject areas

    • Animal Science and Zoology

    Cite this

    Higham, J. P., Heistermann, M., Ross, C., Semple, S., & MacLarnon, A. (2008). The timing of ovulation with respect to sexual swelling detumescence in wild olive baboons. Primates, 49(4), 295-299. https://doi.org/10.1007/s10329-008-0099-9