A new species of &lt;i&gt;Pseudopaludicola&lt;/i&gt; (Anura, Leiuperidae) from western Piauí State, Northeast Brazil

Roberto, Igor Joventino; Cardozo, Darío; Ávila, Róbson Waldemar

doi:10.11646/zootaxa.3636.2.6

Cited by 26 publications

(27 citation statements)

References 18 publications

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“…Sesamoids have been identified in the hands and feet of a variety of anurans and associated with various tendons [Pipidae (Olson, 2000), Leptodactylus fuscus group (Ponssa et al, 2010); Arthroleptidae (Laurent, '86;Scott, 2005), Pseudopaludicola spp. (Cardozo and Suarez, 2012;Roberto et al, 2013)]. There are anurans where only one or two tendons develop sesamoids, such as the Ceratophryidae, and there are sesamoids irregularly found in skeletal preparations (Fig.…”

Section: Limb Organizationmentioning

confidence: 99%

Morphological Variation in Anuran Limbs: Constraints and Novelties

2017

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Anurans have three primary types of locomotion: walking, jumping, and swimming. Additionally, they may dig, climb, grasp, etc. All adult anurans have four limbs, with four fingers on the hands and five toes on the feet. We summarized and updated knowledge on the interspecific variation within anuran limbs, then discuss how developmental constraints (e.g., in size) and novelties may have influenced anuran diversification through the locomotion. We analyze morphological variation from limb bud stages up to the final limb form resulting from certain skeletal organization and growth. We find limited morphometric variations in the skeleton of different developmental modules (i.e., skull, trunk, urostyle, limbs) indicate that the anuran body shape is largely constrained. We identify specializations of the stylopodium, zeugopodium, and proximal carpals/tarsals that have evolved to facilitiate saltatorial locomotion. We show that the anuran prepollex and prehallux are not vestigial digits and that they have come to serve specialized function. Medial rotation of the manus in anurans appears to have evolved to help distribute the force of impact upon landing at the end of a jump. Additional skeletal elements in anuran limbs are intercalary elements and sesamoids. The intercalary elements appear within neobatrachians and are integrated with digital pads in lineages capable of locomotion on smooth vertical surfaces. They have allowed arboreal anurans to occupy a wide range of arboreal habitats.

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Section: Limb Organizationmentioning

confidence: 99%

Morphological Variation in Anuran Limbs: Constraints and Novelties

2017

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“…This genus, allocated to the subfamily Leiuperinae (Pyron & Wiens ), comprises 17 valid species (Andrade & Carvalho ; Cardozo & Toledo ; Roberto et al . ).…”

Section: Introductionmentioning

confidence: 97%

A phylogenetic analysis of Pseudopaludicola (Anura) providing evidence of progressive chromosome reduction

et al. 2014

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Here, we present a molecular phylogenetic analysis of the Neotropical genus Pseudopaludicola focusing on species relationships including 11 of the 17 known species of Pseudopaludicola; several samples of Pseudopaludicola are not assigned to any species; and 34 terminal species as an outgroup. The study was based on the analysis of approximately 2.3 kb of the sequence of the mitochondrial 12S rRNA, tRNAval and 16S rRNA genes through maximum parsimony and Bayesian phylogenetic reconstruction approaches. Our results showed that Pseudopaludicola is a well‐supported monophyletic group organized into four major clades and confirmed that the assemblage of species that lack T‐shaped terminal phalanges is paraphyletic with respect to the P. pusilla Group. Chromosomal data mapped on the cladogram showed a direct correlation among the four clades and observed chromosome numbers (2n = 22, 20, 18 and 16) with a progressive reduction in the chromosome number. Overall, our findings suggest that some taxonomic changes are necessary and reinforce the need for a revision of the genus Pseudopaludicola.

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“…However, this richness is underestimated since recent descriptions of several new species have been published (e.g. Giugliano et al 2013;Teixeira Jr et al 2013;Roberto et al 2013;Carvalho and Giaretta 2013). One of the main factors influencing high local and regional diversity in the Cerrado herpetofauna is the horizontal habitat stratification, with a wide range of different vegetation types (from forests to open grasslands) occurring side by side in the landscape, each one of them harboring a different set of species (Colli et al 2002;Nogueira et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Amphibians and reptiles from southeastern Goiás, Central Brazil

Santos¹,

Andrade²,

Victor-Jr.³

et al. 2014

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Even harboring a high diversity and many endemic species of amphibians and reptiles, the Cerrado biome has shown drastic changes due to the conversion of natural areas into pastures and plantations. Here, we present a checklist of amphibians and reptiles from southeastern state of Goiás, Central Brazil. This checklist was the result of collecting efforts of an inventory along the basin of the Piracanjuba and Peixe rivers carried out between September 2010 and January 2011. We recorded 39 amphibians and 40 reptiles. These results were also compared to other studies in the Cerrado biome. Our results showed that this region has a rich herpetofauna, despite the progress of anthropogenic activities in the region.

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A new species of <i>Pseudopaludicola</i> (Anura, Leiuperidae) from western Piauí State, Northeast Brazil

Cited by 26 publications

References 18 publications

Morphological Variation in Anuran Limbs: Constraints and Novelties

Morphological Variation in Anuran Limbs: Constraints and Novelties

A phylogenetic analysis of Pseudopaludicola (Anura) providing evidence of progressive chromosome reduction

Amphibians and reptiles from southeastern Goiás, Central Brazil

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