Life history of frogs of the Brazilian semi-arid (Caatinga), with emphasis in aestivation

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dc.contributorLab. Biologia Estruturalpt_BR
dc.contributor.authorJared, Carlospt_BR
dc.contributor.authorMailho-Fontana, Pedro Luizpt_BR
dc.contributor.authorMendelson, Josephpt_BR
dc.contributor.authorAntoniazzi, Marta Mariapt_BR
dc.identifier.citationJared C, Mailho-Fontana PL, Mendelson J, Antoniazzi MM. Life history of frogs of the Brazilian semi-arid (Caatinga), with emphasis in aestivation. Acta Zool.. 2019 Mar:1-9. doi:10.1111/azo.12295.pt_BR
dc.description.abstractThe semi-arid region (Caatinga), that corresponds to 18.26% (1,540,000 km2) of Brazil, occupies most the northeast region. Rainfall is irregular and concentrated within the first 3 months of the year. Prolonged periods of drought, with low total rainfall, may extend for two or more years. Most of the rivers of this biome are temporary, remaining totally dry during periods of drought. We collected and observed the natural history and biology of the species Proceratophrys cristiceps, Pleurodema diplolister and Physalaemus spp, both in the rainy and dry seasons, in ten field expeditions to the State of Rio Grande do Norte (Brazil). We focused on the morphology of the skin and cutaneous glands, specifically in their defence against desiccation. During the dry season, they form concentrations in the bed of temporary rivers, burrowing themselves in favourable locations within the sand, at depths that may exceed 1.50 m. No morphological evidence was found that there are specific cutaneous adaptations against water loss. We suggest that the cutaneous fragility per se is a cutaneous adaptation to water balance. The behaviour of such anuran species, together with their physiological characteristics, should be the main tools to face the challenge of living in xeric conditions.pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)pt_BR
dc.relation.ispartofActa Zoologicapt_BR
dc.titleLife history of frogs of the Brazilian semi-arid (Caatinga), with emphasis in aestivationpt_BR
dc.contributor.externalGeorgia Institute of Technology (Georgia Tech)¦¦Estados Unidospt_BR
dc.subject.keywordnatural historypt_BR
dc.subject.keywordskin morphologypt_BR
dc.relation.ispartofabbreviatedActa Zoolpt_BR
dc.identifier.citationabntp. 1-9, mar. 2019pt_BR
dc.identifier.citationvancouver2019 Mar:1-9pt_BR
dc.contributor.butantanJared, Carlos|:Pesquisador|:Lab. Biologia Estrutural|:PrimeiroAutor:Autor de correspondênciapt_BR
dc.contributor.butantanAntoniazzi, Marta Maria|:Pesquisador:Docente Permanente PPGTOX|:Lab. Biologia Estrutural|:pt_BR
dc.contributor.butantanMailho-Fontana, Pedro Luiz|:Aluno|:Lab. Biologia Estrutural|:pt_BR
dc.sponsorship.butantanConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)¦¦308178/2014-9pt_BR
dc.sponsorship.butantanConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)¦¦309589/2017-7pt_BR
dc.sponsorship.butantanCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)¦¦001pt_BR
dc.subject.researchlineBiologia integrada à Toxinologiapt_BR
item.fulltextCom Texto completo-
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