Systematics and cryptic diversification of Leptodactylus frogs in the Brazilian campo rupestre
Thiago R. Carvalho, Karin R. Seger, Felipe M. Magalhães, Luciana B. Lourenço, Célio F. B. Haddad
ARTIGO
Inglês
Agradecimentos: We are grateful to individuals of national and state parks, and private reserves for logistical support during field expeditions. Instituto Chico Mendes (ICMBio) granted collecting permits (ICMBio/SISBIO #30059 and #02015.008064/02-51). The following individuals granted access to...
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Agradecimentos: We are grateful to individuals of national and state parks, and private reserves for logistical support during field expeditions. Instituto Chico Mendes (ICMBio) granted collecting permits (ICMBio/SISBIO #30059 and #02015.008064/02-51). The following individuals granted access to specimens under their care: Ariovaldo A. Giaretta (AAG-UFU), Hussam Zaher and Taran Grant (MZUSP), José P. Pombal Jr. (MNRJ), Luciana B. Nascimento (MCNAM), Luis Felipe Toledo (ZUEC), Paulo C. A. Garcia (UFMG) and Renato N. Feio (MZUFV). The first author is indebted to Ariovaldo A. Giaretta for guiding and mentoring during his Master's programme (2010–2012), for the logistical support in several field expeditions and for making available acoustic and ecological data on Leptodactylus frogs. Special thanks to Ariovaldo A. Giaretta, Bernardo F. V. Teixeira, Kátia G. Facure and Lucas B. Martins for field companionship; Miguel T. Rodrigues, Felipe F. S. Leite and Fernando Leal for making available tissue samples; Felipe F. S. Leite, Fernando Leal, Felipe Carvalho, Luis Felipe Toledo and Marcus T. T. Santos for making available occurrence records of Leptodactylus species; Francisco H. Dal Vechio for tracking down voucher specimens in MTR's field collection; Centro de Estudos de Insetos Sociais (CEIS) and Mariana L. Lyra for providing laboratory space and helping with DNA sequencing; Felipe S. de Andrade, Kátia G. Facure and Leandro J. C. L. Moraes for making valuable suggestions on drafts at different stages. Financial support for this work was provided by CNPq (#446935/2014-0 and #306623/2018-8) and FAPESP (#2013/50741-7). TRC was supported with Master's and doctoral fellowships from CAPES and FAPESP (#2012/15763-7), respectively, and is currently supported with a postdoctoral fellowship (FAPESP #2017/08489-0)
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Abstract: The campo rupestre is a unique mountaintop ecosystem in eastern South America, recognised for its endemism and as ecological refugia for plant and animal taxa. Multiple clades of frogs are represented in the Brazilian campo rupestre. One such case is four species of the Leptodactylus...
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Abstract: The campo rupestre is a unique mountaintop ecosystem in eastern South America, recognised for its endemism and as ecological refugia for plant and animal taxa. Multiple clades of frogs are represented in the Brazilian campo rupestre. One such case is four species of the Leptodactylus fuscus group, three of which are endemic to specific mountain ranges (Leptodactylus camaquara, Leptodactylus oreomantis and Leptodactylus tapiti) and one that is more widespread across different mountain ranges (Leptodactylus cunicularius). In this study, we conducted a phylogenetic analysis of the clade containing the four Leptodactylus species endemic to the campo rupestre ecosystem and explored the biogeographic scenarios of origin and diversification of these montane frogs. The origin and early diversification of this frog clade took place in the Espinhaço Mountain Range (EMR) in the Miocene. This was followed by successive dispersal events to other mountain ranges in a circular pathway and subsequent rapid lineage diversification during the Plio-Pleistocene transition and early Pleistocene. The diversification of this anuran clade was likely triggered by the Pleistocene climatic oscillations and culminated in the return of one of the montane species to the EMR. Contrasting patterns of phenotypic and genetic divergence indicate cryptic speciation in these frogs unaccompanied by phenotypic disparity. A phenotypically cryptic but highly divergent genetic lineage was found to represent a distinct evolutionary unit in the Northern EMR, described here as a new species (Leptodactylus avivoca sp. n.). The circular dispersal pathway in this frog clade revealed a unique diversification pattern among vertebrates endemic to the Brazilian campo rupestre
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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ
446935/2014-0; 306623/2018-8
FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP
2012/15763-7; 2013/50741-7; 2017/08489-0
COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPES
Fechado
DOI: https://doi.org/10.1111/zsc.12470
Texto completo: https://onlinelibrary.wiley.com/doi/10.1111/zsc.12470
Systematics and cryptic diversification of Leptodactylus frogs in the Brazilian campo rupestre
Thiago R. Carvalho, Karin R. Seger, Felipe M. Magalhães, Luciana B. Lourenço, Célio F. B. Haddad
Systematics and cryptic diversification of Leptodactylus frogs in the Brazilian campo rupestre
Thiago R. Carvalho, Karin R. Seger, Felipe M. Magalhães, Luciana B. Lourenço, Célio F. B. Haddad
Fontes
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Zoologica scripta vol. 50, n. 3 (May, 2021), p. 300-317 |