Taxonomic Revision of the Scinax alter Species Complex (Anura: Hylidae)

Nunes, Ivan; Kwet, Axel; Pombal, José P.

doi:10.1643/ch-11-088

Cited by 40 publications

(58 citation statements)

References 33 publications

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“…This species belongs to Scinax ruber clade and, according to biological and anatomical studies would be related to the following species: Scinax alter (Lutz, 1973), Scinax cretatus (Nunes & Pombal, 2011), Scinax crospedospilus (Lutz, 1925), Scinax cuspidatus (Lutz, 1925), Scinax imbegue Nunes, Kwet & Pombal, 2012, Scinax juncae Nunes & Pombal, 2010 and Scinax tymbamirim Nunes, Kwet & Pombal, 2012 (Pombal et al 1995, Alves et al 2004, Nunes and Pombal 2010, 2011, Nunes et al 2012, Mercês and Juncá 2012). Cardozo et al (2011) showed that the karyotype of Scinax alter in unique in Scinax ruber clade because of a distinctive NOR-bearing pair (3q).…”

Section: Introductionmentioning

confidence: 99%

Cytogenetic analysis of Scinax auratus and Scinax eurydice (Anura, Hylidae) with emphasis on cytotaxonomy

Nogueira

Paim

Diniz

et al. 2015

CCG

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Scinax Wagler, 1830 is a species-rich genus of amphibians with relatively few detailed chromosomal reports. In this work, cytogenetic analyses of Scinax auratus (Wied-Neuwied, 1821) and Scinax eurydice (Bokermann, 1968) were carried out based on conventional (Giemsa staining, Ag-NOR and C-banding) and cytomolecular (base-specific fluorochrome staining and fluorescence in situ hybridization – FISH of ribosomal probes) techniques. Both species shared the same karyotype, location of active nucleolar organizer regions on pair 11 and GC-rich heterochromatin, as reported for most species in Scinax ruber clade. Interpopulation chromosomal variation was observed in Scinax eurydice, indicating the occurrence of cryptic species. The mapping of 18S ribosomal genes by FISH is reported for the first time in both species.

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Section: Introductionmentioning

confidence: 99%

Cytogenetic analysis of Scinax auratus and Scinax eurydice (Anura, Hylidae) with emphasis on cytotaxonomy

Nogueira

Paim

Diniz

et al. 2015

CCG

View full text Add to dashboard Cite

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“…Although several recent studies have revised problematic taxonomic groups in Anura (e.g. Pseudopaludicola; Duarte et al 2010, Fávero et al 2011, Pansonato et al 2012, there are still many in need of studies using integrative taxonomy, such as Adenomera and Scinax (Heyer 1984, Kwet 2007, Zaracho & Hernando 2011, Nunes et al 2012. Samplings in poorly known regions, such as that of the present study, contribute to taxonomic and systematic revisions with vouchers, vocalizations records, material for molecular analysis and species distribution data.…”

Section: Discussionmentioning

confidence: 78%

Anurans of a threatened savanna area in western Brazil

2014

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-The Upper Paraguay River Basin is located in the center of South America and harbors one of the largest wetland in the world, known as Pantanal. This floodplain is surrounded by uplands, which presently have most of their area converted into pastures or monocultures, besides being poorly known scientifically. Also, most of these upland areas are considered conservation priorities. Here we present a list of anuran species from a savanna-like area (municipality of Camapuã, state of Mato Grosso do Sul, Brazil) inserted in the uplands surrounding the Pantanal floodplain, in the Upper Taquari River sub-basin, and evaluate the effectiveness of the sampling effort. Data were obtained through active searches in 22 plots in aquatic habitats, during the rainy season (from December 2009 to April 2010). We found 26 species, in four families. Although sampling effort was found to sufficiently represent the local anuran assemblage, future inventories in this region should ideally include samplings during the dry and early rainy seasons, and include both active and passive capturing methods. Resumo -A bacia do Alto Paraguai, localizada no centro da América do Sul, abriga uma das maiores áreas inundáveis do mundo, conhecida como Pantanal. Essa planície alagável é rodeada por planaltos, os quais possuem grande parte de sua área convertida em pastagens ou monoculturas, além de serem pouco conhecidos cientificamente. Além disso, a maioria das áreas de planalto são consideradas prioritárias para a conservação. Apresentamos uma lista de espécies de anuros de uma área semelhante a savanas (município de Camapuã, estado de Mato Grosso do Sul, Brasil) inserida nos planaltos de entorno do Pantanal, na sub-bacia do Alto Taquari, e avaliamos a efetividade do esforço amostral. Os dados foram obtidos através de busca ativa em 22 parcelas em ambientes aquáticos, durante a estação chuvosa (de Dezembro de 2009 a Abril de 2010). Encontramos 26 espécies, em quatro famílias. Apesar de considerarmos o esforço amostral suficiente para representar da comunidade de anuros local, sugerimos que futuros inventários nessa região contemplem a estação seca e início da chuvosa, bem como o uso adicional de métodos passivos de captura. Palavras-chave: Amphibia, veredas, sub-bacia do Alto Taquari, inventários biológicos, degradação ambiental.

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“…Scinax cardosoi has a longer call duration (1100-2958 ms) than other species with long calls (> 350 ms), as follow: S. crospedospilus (250-445 ms; Magrini et al 2011) Pombal et al 2011), and S. tymbamirim (4000-4300 Hz; Nunes et al 2012).…”

Section: Discussionmentioning

confidence: 97%

“…Two species groups are recognized in the S. ruber Clade-the S. rostratus and the S. uruguayus groups; several other species remain unassigned to either of the species groups (Faivovich et al 2005). Vocalizations (particularly advertisement calls) have supplemented species-level diagnoses in Scinax (De la Riva 1993, Nunes et al 2012).…”

Section: Introductionmentioning

confidence: 99%

The complex vocalization of Scinax cardosoi (Anura: Hylidae), with comments on advertisement calls in the S. ruber Clade

2015

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The complex vocalization of Scinax cardosoi (Anura: Hylidae), with comments on advertisement calls in the S. ruber Clade. The complex vocalization of Scinax cardosoi from a population of Minas Gerais in southeastern Brazil is described and compared with available acoustic data for the other species of the S. ruber Clade. Three distinct types of "trilled" calls. Short calls (16-66 ms) resemble squeaks, and consist of a pulsed signal (8-28 pulses/call) with regular amplitude modulations throughout their duration; the amplitude peak occurs at about the midpoint of the call duration. Long calls (268-518 ms) resemble giggles, and have lower amplitude than short calls; typically, they consist of pulsed note series (1-6 notes/call). Trilled calls resemble insect chirps and have the lowest amplitude of the three call types; they consist of long (1.1-3.0 s) pulsed note series (9-25 notes/call). Acoustic data are taxonomically informative in the Scinax ruber Clade and provide phenotypic characters diagnosing S. cardosoi in addition to those features proposed in its original description. The vocalization repertoire of S. cardosoi resembles the complex vocal repertoires (i.e., multiple call types emitted in variable combinations) of members of the S. catharinae Clade more than some species of the S. ruber Clade, which tend to have simpler call structures (i.e., a single type of multipulsed note).Keywords: acoustic repertoire, amphibians, call functions, Minas Gerais state, southeastern Brazil. 128Phyllomedusa -14(2), December 2015 Resumo A vocalização complexa de Scinax cardosoi (Anura: Hylidae), com comentários sobre cantos de anúncio no Clado de S. ruber. A vocalização complexa de Scinax cardosoi de uma população do estado de Minas Gerais no sudeste brasileiro é descrita e comparada com os dados acústicos disponíveis para outras espécies do Clado de S. ruber. Três tipos diferentes de cantos pulsados e ms) lembram chios e consistem em sinais pulsados (8-28 pulsos/canto) com modulações de amplitude regulares ao longo de sua duração e pico de amplitude aproximadamente na metade de sua duração. Cantos longos (268-518 ms) lembram risadinhas e têm menor amplitude quando comparados a cantos curtos; tipicamente, consistem em séries de notas pulsadas (1-6 notas/canto). Cantos trinados lembram zunidos de insetos e apresentam a menor amplitude dentre os três tipos de cantos; consistem em séries muito longas (1,1-3,0 s) de notas pulsadas (9-25 notas/canto). Dados acústicos são taxonomicamente informativos no Clado de S. ruber, fornecendo evidências fenotípicas à diagnose de S. cardosoi além das características propostas em sua descrição original. O repertório vocal de S. cardosoi assemelha-se mais aos repertórios vocais complexos (vários tipos de cantos emitidos em combinações variadas) de espécies do Clado de S. catharinae do que ao de algumas espécies do Clado de S. ruber, os quais tendem a ter uma estrutura do canto mais simples (um tipo único de nota multipulsionada).Palavras-chave: anfíbios, funções do canto, Minas Gerai...

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Taxonomic Revision of the Scinax alter Species Complex (Anura: Hylidae)

Cited by 40 publications

References 33 publications

Cytogenetic analysis of Scinax auratus and Scinax eurydice (Anura, Hylidae) with emphasis on cytotaxonomy

Cytogenetic analysis of Scinax auratus and Scinax eurydice (Anura, Hylidae) with emphasis on cytotaxonomy

Anurans of a threatened savanna area in western Brazil

The complex vocalization of Scinax cardosoi (Anura: Hylidae), with comments on advertisement calls in the S. ruber Clade

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