Revealing Two New Species of the<i>Rhinella margaritifera</i>Species Group (Anura, Bufonidae): An Enigmatic Taxonomic Group of Neotropical Toads

Vaz-Silva, Wilian; Maciel, Natan Medeiros; Pombal, José P.

doi:10.1655/herpetologica-d-14-00039

Cited by 11 publications

(12 citation statements)

References 36 publications

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“…The R. margaritifera group is currently composed of 19 species (Vaz-Silva et al , 2015), with the NOR being found in the homologs of pair 10 (long arm) in R. hoogmoedi (present study), and in Rhinella sp. 1 from Maranhão and Rhinella sp.…”

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confidence: 60%

“…The species of the Rhinella margaritifera group are distributed in northern South America and the Central America forest domain, except for R. hoogmoedi (Caramaschi and Niemeyer, 2003), which inhabits the Atlantic Forest biome, and R. scitulla , R. ocellata, R. sebbeni , and R. paraguayensis , which occur in the Brazilian Cerrado savanna (Ávila et al , 2010; Vaz-Silva et al , 2015). However, the forest-dwelling species tend to present high levels of individual variation in morphological features, which limits the usefulness of these attributes for the discrimination of species.…”

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confidence: 99%

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Comparative cytogenetics of nine populations of the Rhinella genus (Anura, Bufonidae) with a highlight on their conservative karyotype

et al. 2019

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The genus Rhinella is one of the most diverse groups of bufonid toads, currently composed by 93 valid species and naturally distributed throughout different Neotropical ecoregions. Here, we analyze nine Brazilian populations of toads representing species of the Rhinella margaritifera and Rhinella marina groups. These new data include the first description of the R. hoogmoedi and R. proboscidae karyotypes, as well as other taxonomically unresolved forms. Chromosomal analysis of the populations revealed pronounced chromosomal uniformity (2n=22), including the diploid number and chromosomal morphology. Three different NOR-bearing chromosomes were identified: in the subterminal region of pair 10q in R. hoogmoedi , Rhinella sp. 1 and Rhinella sp. 2, in subterminal region of 7p in R. proboscidae and Rhinella cf. margaritifera while in R. henseli and R. icterica was detected in interstitial region of 7p. Karyotypic uniformity of the genus permits the inference of interspecific chromosome homologies and evolutionary changes in the NOR-bearing chromosome may represent an informative character in species group level. The review of the cytogenetic data of the Rhinella species together with the new karyotypes reported here contributes to the understanding of the chromosomal evolution of these toads, which karyotypes are highly conserved despite the ample distribution of many forms.

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Comparative cytogenetics of nine populations of the Rhinella genus (Anura, Bufonidae) with a highlight on their conservative karyotype

et al. 2019

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“…A significant part of the anuran richness found (40%) is endemic to the Cerrado Biome, where some were re-corded exclusively in forest environments (e.g., R. sebbeni, B. ternetzi, P. goyana, O. cultripes, C. albopunctata). Among these, P. atim and R. sebbeni were recently described (Brasileiro & Haddad, 2015;Vaz-Silva et al, 2015), and thus information about their natural history and geographic distribution are lacking, making the assessment of their true conservation status difficult (Morais et al, 2018). Research efforts should be directed towards filling the knowledge gaps for these species, including information about their ecology, natural history and distribution (Guerra et al, 2018).…”

Section: Reptilesmentioning

confidence: 99%

“…Increases in the number of wildlife inventories has improved knowledge regarding amphibians and reptiles, resulting in the expansion of the area of occurrence (range) of many species and descriptions of new species (e.g., Brasileiro & Haddad, 2015;Vaz-Silva et al, 2015), thus facilitating studies of distribution patterns (e.g., Vasconcelos et al, 2014). However, there are still remains large sampling gaps, most notably in remnants of seasonal semi-deciduous forest in the central region of the Cerrado.…”

Section: Introductionmentioning

confidence: 99%

Herpetofauna of Parque Estadual Altamiro de Moura Pacheco: one of the last remnants of seasonal forest in the core region of the Brazilian Cerrado

et al. 2018

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Studies in remnants of semi-deciduous seasonal forest of the Cerrado are needed to fill sampling gaps and improve basic knowledge of biodiversity. This study presents data on the herpetofauna of Parque Estadual Altamiro de Moura Pacheco, one of the last protected areas of seasonal forest in the core region of the Brazilian Cerrado. Fourteen sites were sampled between March 2007 and April 2008 using pitfall traps and active searches. A total of 35 anuran species were recorded, most of which were found in hygrophilous environments near forest fragments, open areas and riparian or gallery forest. A total of 29 reptile species were recorded, most of which were found in semi-deciduous forest and riparian or gallery forest. Fourteen of the amphibians and five of the reptiles are endemic to the Cerrado. The richness of amphibians and reptiles found in Parque Estadual Altamiro de Moura Pacheco is regionally representative, with communities typical of forest environments.

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“…Among the indicators of the need for wildlife studies in Maranhão are the articles of the last decades that describe new species in Amazonia, especially in the eastern Amazon (Caramaschi 2010; Vaz-Silva et al 2015), as well as the few publications, concentrated mainly on snakes (Cunha and Nascimento 1993; Freitas et al 2014), lizards (Avila-Pires and Vitt 1998; Avila-Pires 1995; Freitas et al 2013) and anurans (Andrade et al 2003; Rodrigues et al 2003; Andrade et al 2011; Barreto et al 2011; Miranda et al 2012; Miranda et al 2013; Matavelli et al 2013; Freitas et al 2014b, c, d; Vaz-Silva et al 2015). …”

Section: Introductionmentioning

confidence: 99%

Herpetofauna of the Northwest Amazon forest in the state of Maranhão, Brazil, with remarks on the Gurupi Biological Reserve

Freitas¹,

Vieira²,

Entiauspe-Neto³

et al. 2017

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Understanding the biodiversity of an area is the first step for establishing effective interventions for conservation, especially when it comes to herpetofauna, since 4.1% and 9.2%, respectively, of Brazilian amphibians and reptiles are endangered. The aim of this study is to identify the composition of the herpetofauna occurring in the Northwest Amazonian state of Maranhão, with a focus on the Gurupi Biological Reserve and surrounding areas. Samples were collected between May 2012 and October 2013 (18 months), through pitfall traps, time constrained active search, and opportunistic encounters, and these records were supplemented by specimens collected by third parties and by bibliographic records. A total of 131 species were recorded: 31 species of amphibians and 100 species of reptiles (six testudines, 30 lizards, two amphisbaenas, 60 snakes and two alligators), including some species new to the state of Maranhão and the northeast region of Brazil. This inventory contributes to the knowledge of the herpetofauna for the Belém Endemism Center, the most devastated region of the Brazilian Amazon, and considered poorly sampled.

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Revealing Two New Species of theRhinella margaritiferaSpecies Group (Anura, Bufonidae): An Enigmatic Taxonomic Group of Neotropical Toads

Cited by 11 publications

References 36 publications

Comparative cytogenetics of nine populations of the Rhinella genus (Anura, Bufonidae) with a highlight on their conservative karyotype

Comparative cytogenetics of nine populations of the Rhinella genus (Anura, Bufonidae) with a highlight on their conservative karyotype

Herpetofauna of Parque Estadual Altamiro de Moura Pacheco: one of the last remnants of seasonal forest in the core region of the Brazilian Cerrado

Herpetofauna of the Northwest Amazon forest in the state of Maranhão, Brazil, with remarks on the Gurupi Biological Reserve

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