Ancient Tepui Summits Harbor Young Rather Than Old Lineages of Endemic Frogs

Salerno, Patricia E.; Ron, Santiago R.; Señaris, J. Celsa; Rojas-Runjaic, Fernando J. M.; Noonan, Brice P.; Cannatella, David C.

doi:10.1111/j.1558-5646.2012.01666.x

Cited by 51 publications

(56 citation statements)

References 61 publications

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“…1) is generally well supported and agrees with Salerno et al (2012) phylogeny in showing a basal divergence between ( Osteocephalus taurinus + Osteocephalus oophagus ) and the other Osteocephalus species.Within the later, Osteocephalus alboguttatus diverges basally while the remaining species are divided in two clades. One clade (posterior probability, PP, = 1.0) corresponds to the Osteocephalus buckleyi species group.…”

Section: Resultssupporting

confidence: 78%

Systematics of the Osteocephalus buckleyi species complex (Anura, Hylidae) from Ecuador and Peru

Ron¹,

Venegas²,

Toral³

et al. 2012

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We present a new phylogeny, based on DNA sequences of mitochondrial and nuclear genes, for frogs of the genus Osteocephalus with emphasis in the Osteocephalus buckleyi species complex. Genetic, morphologic, and advertisement call data are combined to define species boundaries and describe new species. The phylogeny shows strong support for: (1) a basal position of Osteocephalus taurinus + Osteocephalus oophagus, (2) a clade containing phytotelmata breeding species, and (3) a clade that corresponds to the Osteocephalus buckleyi species complex. Our results document a large proportion of hidden diversity within a set of populations that were previously treated as a single, widely distributed species, Osteocephalus buckleyi. Individuals assignable to Osteocephalus buckleyi formed a paraphyletic group relative to Osteocephalus verruciger and Osteocephalus cabrerai and contained four species, one of which is Osteocephalus buckleyi sensu stricto and three are new. Two of the new species are shared between Ecuador and Peru (Osteocephalus vilmae sp. n. and Osteocephalus cannatellai sp. n.) and one is distributed in the Amazon region of southern Peru (Osteocephalus germani sp. n.) We discuss the difficulties of using morphological characters to define species boundaries and propose a hypothesis to explain them.

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Section: Resultssupporting

confidence: 78%

Systematics of the Osteocephalus buckleyi species complex (Anura, Hylidae) from Ecuador and Peru

Ron¹,

Venegas²,

Toral³

et al. 2012

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“…Phylogenetic studies in frogs [62] and Rapateaceae plants [63] have identified the surrounding lowlands as yet another source of diversity. The question of why only some species reach and colonize the Pantepui may require a deeper and more precise understanding of species’ dispersal capacities, competitive abilities, niche breath, and adaptability to new conditions, among others.…”

Section: Discussionmentioning

confidence: 99%

On the Origin of Pantepui montane biotas: A Perspective Based on the Phylogeny of Aulacorhynchus toucanets

Bonaccorso

Guayasamín

2013

PLoS ONE

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To understand the origin of Pantepui montane biotas, we studied the biogeography of toucanets in the genus Aulacorhynchus. These birds are ideal for analyzing historical relationships among Neotropical montane regions, given their geographic distribution from Mexico south to Bolivia, including northern Venezuela (Cordillera de la Costa), and the Pantepui. Analyses were based on molecular phylogenies using mitochondrial and nuclear DNA sequences. Topology tests were applied to compare alternative hypotheses that may explain the current distribution of Aulacorhynchus toucanets, in the context of previous hypotheses of the origin of Pantepui montane biotas. Biogeographic reconstructions in RASP and Lagrange were used to estimate the ancestral area of the genus, and an analysis in BEAST was used to estimate a time framework for its diversification. A sister relationship between the Pantepui and Andes+Cordillera de la Costa was significantly more likely than topologies indicating other hypothesis for the origin of Pantepui populations. The Andes was inferred as the ancestral area for Aulacorhynchus, and the group has diversified since the late Miocene. The biogeographic patterns found herein, in which the Andes are the source for biotas of other regions, are consistent with those found for flowerpiercers and tanagers, and do not support the hypothesis of the geologically old Pantepui as a source of Neotropical montain diversity. Based on the high potential for cryptic speciation and isolation of Pantepui populations, we consider that phylogenetic studies of additional taxa are important from a conservation perspective.

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“…GenBank sequences were originally published by Darst and Cannatella (2004), Faivovich et al (2005), Salducci et al (2005), Wiens et al (2005), Moen and Wiens (2009), Moravec et al (2009), Salerno et al (2012), Jungfer et al (2013), and Salerno et al (2015). Samples of Phyllomedusinae were included as outgroups ( Agalychnis spurrelli , Phyllomedusa tomopterna , and Phyllomedusa perinesos ).…”

Section: Methodsmentioning

confidence: 99%

Systematics of Ecnomiohyla tuberculosa with the description of a new species and comments on the taxonomy of Trachycephalus typhonius (Anura, Hylidae)

Ron¹,

Venegas²,

Ortega‐Andrade³

et al. 2016

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Ecnomiohyla tuberculosa is an Amazonian hylid of uncertain phylogenetic position. Herein DNA sequences of mitochondrial and nuclear genes are used to determine its phylogenetic relationships. New sequences and external morphology of Trachycephalus typhonius are also analyzed to assess the status of Ecuadorian and Peruvian populations. The phylogeny shows unequivocally that Ecnomiohyla tuberculosa is nested within the genus Tepuihyla, tribe Lophiohylini. This position was unexpected because the remaining species of Ecnomiohyla belong to the tribe Hylini. To solve the paraphyly of the genus Ecnomiohyla, Ecnomiohyla tuberculosa is transferred to the genus Tepuihyla. Comparisons of DNA sequences, external morphology, and advertisement calls between populations of Ecnomiohyla tuberculosa from Ecuador and Peru indicate that the Peruvian population represents an undescribed species. The new species is described and a species account is provided for Ecnomiohyla tuberculosa. Trachycephalus typhonius is paraphyletic relative to Trachycephalus cunauaru, Trachycephalus hadroceps, and Trachycephalus resinifictrix. The phylogenetic position of populations from western Ecuador indicates that they represent a species separate from Trachycephalus typhonius sensu stricto. We resurrect the name Hyla quadrangulum (Trachycephalus quadrangulum comb. n.) for those populations. Amazonian populations of “Trachycephalus typhonius” from Ecuador and Peru are genetically and morphologically distinct from Trachycephalus typhonius sensu stricto and are conspecific with the holotype of Hyla macrotis. Therefore, we also resurrect Hyla macrotis, a decision that results in Trachycephalus macrotis comb. n.

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Ancient Tepui Summits Harbor Young Rather Than Old Lineages of Endemic Frogs

Cited by 51 publications

References 61 publications

Systematics of the Osteocephalus buckleyi species complex (Anura, Hylidae) from Ecuador and Peru

Systematics of the Osteocephalus buckleyi species complex (Anura, Hylidae) from Ecuador and Peru

On the Origin of Pantepui montane biotas: A Perspective Based on the Phylogeny of Aulacorhynchus toucanets

Systematics of Ecnomiohyla tuberculosa with the description of a new species and comments on the taxonomy of Trachycephalus typhonius (Anura, Hylidae)

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