Carrying progeny on the back: reproduction in the Brazilian aquatic frog Pipa carvalhoi

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorFernandes, Tatiana L.
dc.creatorAntoniazzi, Marta Maria
dc.creatorSasso-Cerri, Estela
dc.creatorEgami, Mizue Imoto
dc.creatorLima, Carla
dc.creatorRodrigues, Miguel Trefaut Urbano
dc.creatorJared, Carlos
dc.date2015-08-06T16:13:14Z
dc.date2016-10-25T20:53:47Z
dc.date2015-08-06T16:13:14Z
dc.date2016-10-25T20:53:47Z
dc.date2011
dc.date.accessioned2017-04-06T08:36:47Z
dc.date.available2017-04-06T08:36:47Z
dc.identifierSouth American Journal of Herpetology, v. 6, n. 3, p. 161-176, 2011.
dc.identifier1808-9798
dc.identifierhttp://hdl.handle.net/11449/125833
dc.identifierhttp://acervodigital.unesp.br/handle/11449/125833
dc.identifierhttp://dx.doi.org/10.2994/057.006.0302
dc.identifier4455630076841302
dc.identifier3755414918888447
dc.identifier1582351352250022
dc.identifier8517414162785247
dc.identifierhttp://www.bioone.org/doi/abs/10.2994/057.006.0302
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/936424
dc.descriptionFemale Pipa carvalhoi incubate their eggs in the skin of the dorsum where the embryos develop until they emerge. Behavioral and morphological aspects of this reproductive mode were studied through courtship until the tadpoles emerged. Samples of the female skin were collected beginning a few hours after egg deposition and through subsequent phases of larval development and examined using standard histology, histochemistry and immunohistochemistry. The females' dorsal skin structure changes during egg implantation and development. These changes may be mediated by hormones and enzymes in a manner paralleling that of trophoblast implantation in mammal endometrium. The lack of vittelum and the extensive vascularization in the female after the 14th day of egg implantation suggest interaction through blood between the female and embryos. This hypothesis could be better accessed, if comparisons could be made with similar species such as Pipa pipa and Pipa arrabali, in which the embryos hatch only after metamorphosis. Similar observations have been made for marsupial frogs of the genus Gastrotheca in which some females maintain the embryos in a pouch in the dorsal integument. For P. carvalhoi, at least within populations of the Brazilian semi-arid environment (Caatinga), where bodies of water and rivers are temporary and depend on the short rainy season, this type of reproduction may be important for the rapid dissemination of large numbers of progeny.
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageeng
dc.relationSouth American Journal of Herpetology
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectAmphibia
dc.subjectAnura
dc.subjectPipidae
dc.subjectPipa carvalhoi
dc.subjectSkin morphology
dc.subjectReproduction
dc.subjectBehavior
dc.subjectNuptial dance
dc.titleCarrying progeny on the back: reproduction in the Brazilian aquatic frog Pipa carvalhoi
dc.typeOtro


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