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dc.contributor.authorRaquet, M.A.
dc.contributor.authorMeasey, G.J.
dc.contributor.authorExbrayat, J.M.
dc.date.accessioned2015-12-10T11:29:42Z
dc.date.available2015-12-10T11:29:42Z
dc.date.issued2015
dc.identifier.citationM. A. Raquet, G. J. Measey & J. M. Exbrayat (2015) Annual variation of ovarian structures of Boulengerula taitana (Loveridge 1935), a Kenyan caecilian, African Journal of Herpetology, 64:2, 116-134en
dc.identifier.issn2156-4574
dc.identifier.urihttp://hdl.handle.net/123456789/1912
dc.description.abstractThe Kenyan caecilian, Boulengerula taitanus inhabits a climate characterised by two distinct dry and wet seasons, and a single thermal minimum in June. It is oviparous with direct development and a remarkable dermatophagous maternal care, but the female reproductive cycle until now remains unknown. The purpose of this work was to complete the knowledge about the reproductive modes of this species, using anatomical and histological studies of the ovaries. Quantitative variations of follicle categories showed a continuous folliculogenesis. Yet, young corpora lutea were only detected between November and February during the short rain season and the short dry season, indicating ovulation occurred during these four months during the thermal maximum. Oestrogen and progesterone detection allowed determination of three reproductive periods during the year: preparation in September and October, ovulation from November until February and quiescence from March until August. So, the female reproductive cycle of B. taitanus appears to be annual and synchronised with testicular evolution. Because the ovulation was observed following the second peak of follicle production (beginning of June), temperature is supposed to be the main regulating factor of reproductive pattern in this caecilian.en
dc.format.extent1306190 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherHerpetological Association of Africaen
dc.subjectAmphibiansen
dc.subjectBoulengerula taitanaen
dc.subjectcaeciliansen
dc.subjectimmunohistochemistry amphibiansen
dc.subjectGymnophionaen
dc.subjectoogenesisen
dc.subjectreproduction hormonesen
dc.subjectseasonalityen
dc.titleAnnual variation of ovarian structures of Boulengerula taitana (Loveridge 1935), a Kenyan caecilianen
dc.typeArticleen


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