Humidity levels drive reproductive modes and phylogenetic diversity of amphibians in the Brazilian Atlantic Forest

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorda Silva, Fernando Rodrigues
dc.creatorAlmeida-Neto, Mario
dc.creatorMendonca do Prado, Vitor Hugo
dc.creatorBaptista Haddad, Celio Fernando
dc.creatorRossa-Feres, Denise de Cerqueira
dc.date2014-05-20T13:59:58Z
dc.date2016-10-25T17:07:42Z
dc.date2014-05-20T13:59:58Z
dc.date2016-10-25T17:07:42Z
dc.date2012-09-01
dc.date.accessioned2017-04-05T21:22:03Z
dc.date.available2017-04-05T21:22:03Z
dc.identifierJournal of Biogeography. Hoboken: Wiley-blackwell, v. 39, n. 9, p. 1720-1732, 2012.
dc.identifier0305-0270
dc.identifierhttp://hdl.handle.net/11449/21203
dc.identifierhttp://acervodigital.unesp.br/handle/11449/21203
dc.identifier10.1111/j.1365-2699.2012.02726.x
dc.identifierWOS:000307562200016
dc.identifierhttp://dx.doi.org/10.1111/j.1365-2699.2012.02726.x
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/866807
dc.descriptionAim The diversity of reproductive modes among amphibians constitutes a striking example of how differences in the biology of species provide important explanations for species distribution patterns on a broad scale. We hypothesize that sites with a higher humidity level will support more modes of reproduction than drier sites and will consequently exhibit a higher phylogenetic diversity. Furthermore, if there is a gradient in the tolerance of reproductive modes to desiccation, there will be a nested pattern in the composition of reproductive modes among sites. Location Twenty-seven forest sites in the Brazilian Atlantic Forest. Methods Through a path analysis approach, we evaluated the direct and indirect effects of the humidity level on the number of reproductive modes, as well as the relative importance of both variables on amphibian phylogenetic diversity. A nestedness analysis was used to quantify the extent to which the compositions of both species and reproductive modes in drier sites correspond to subsets of those in sites with higher annual precipitation. Results We found that the reproductive modes present in drier sites are non-random subsets of those present in sites with higher humidity levels. Because reproductive modes are phylogenetically conserved among amphibians, sites with a greater number of reproductive modes supported greater phylogenetic diversity. Sites with high precipitation throughout the year provided suitable environmental conditions for a larger number of reproductive modes, whereas sites with low precipitation and typical seasonal climates supported only those reproductive modes specialized to resist desiccation. Main conclusions Our results show that humidity-related variables are key environmental factors related to both the richness of reproductive modes and phylogenetic diversity. Our results support the hypothesis that the higher phylogenetic diversity found in moister sites reflects differences in the tolerance to desiccation among different reproductive modes. Given that reproductive modes are associated with susceptibility to desiccation, their incorporation into explanatory models may trigger a significant advance in the understanding of the mechanisms regulating the species richness and composition of amphibian communities.
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageeng
dc.publisherWiley-Blackwell
dc.relationJournal of Biogeography
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectAmphibian diversity
dc.subjectanurans
dc.subjectAtlantic Forest
dc.subjectbiodiversity
dc.subjectbiogeography
dc.subjectBrazil
dc.subjectconservation
dc.subjecthumidity
dc.subjectprecipitation
dc.titleHumidity levels drive reproductive modes and phylogenetic diversity of amphibians in the Brazilian Atlantic Forest
dc.typeOtro


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