7.1 Incentivos para publicaciones indizadas

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https://hdl.handle.net/20.500.12390/386

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Examinando 7.1 Incentivos para publicaciones indizadas por Autor "rp00588"
  • Publicación
    A new species of poison-dart frog (Anura: Dendrobatidae) from Manu Province, Amazon region of southeastern Peru, with notes on its natural history, bioacoustics, phylogenetics, and recommended conservation status
    (Magnolia Press, 2017)
    Serrano-Rojas S.J.
    ;
    Whitworth A.
    ;
    Villacampa J.
    ;
    Von May R.
    ;
    Gutiérrez R.C.
    ;
    Padial J.M.
    ;
    Chaparro J.C.
    We describe and name a new species of poison-dart frog from the Amazonian slopes of the Andes in Manu Province, Madre de Dios Department, Peru; specifically within the Amarakaeri Communal Reserve and the buffer zone of Manu National Park. Ameerega shihuemoy sp. nov. is supported by a unique combination of characters: black dorsum with cream to light orange dorsolateral lines, blue belly reticulated with black, and the lack of axillary, thigh and calf flash marks. Within Ameerega, it shares the general appearance of A. altamazonica, A. boliviana, A. hahneli, A. ignipedis, A. petersi, A. picta, A. pongoensis, A. pulchripecta, A. simulans, A. smaragdina, and A. yungicola; each possessing a granular black to brown dorsum, a light labial bar, a conspicuous dorsolateral line running from the snout to the groin, and a metallic blue belly and underside of arms and hind limbs. From most of these species it can be distinguished by lacking flash marks on the axillae, thighs, and calves (absent in only A. boliviana and A. smaragdina, most A. petersi, and some A. pongoensis), by having bright cream to orange dorsolateral stripes (white, intense yellow, or green in all other species, with the exception of A. picta), and by its blue belly reticulated with black (bluish white and black in A. boliviana, green and blue with black marbling in A. petersi, and green and blue lacking black marbling in A. smaragdina). Its mating call also shows clear differences to morphologically similar species, with a lower note repetition rate, longer space between calls, and higher fundamental and dominant frequencies. Phylogenetic analyses based on the 16S mitochondrial rRNA fragment also support the distinctiveness of the new species and suggest that A. shihuemoy is most closely related to Ameerega macero, A. altamazonica, A. rubriventris, and two undescribed species (Ameerega sp. from Porto Walter, Acre, Brazil, and Ameerega sp. from Ivochote, Cusco, Peru). Genetically, the new species is most similar to the sympatric A. macero, from which it clearly differs in characteristics of its advertisement call and coloration. The new species is found near rocky streams during the dry season and near temporary water bodies during the rainy season. Tadpoles are found in lentic water along streams, or in shallow, slow-moving streams. Given its small geographic range, we recommend that A. shihuemoy should be considered 'Near threatened' (NT) according to IUCN Red List criteria. Copyright © 2017 Magnolia Press.
  • Publicación
    A NEW SPECIES OF TELMATOBIUS WIEGMANN, 1834, FROM THE EASTERN CORDILLERA CENTRAL OF THE ANDES, PERU. (ANURA: TELMATOBIIDAE), WITH DESCRIPTION OF ITS TADPOLE, AND RANGE EXTENSION OF T. MENDELSONI DE LA RIVA ET AL., 2012
    (Carnegie Museum of Natural History, 2016)
    Ttito, A
    ;
    Landauro, CZ
    ;
    Venegas, PJ
    ;
    De la Riva, I
    ;
    Chaparro, JC
    We describe adult specimens and tadpoles of a new species of Telmatobius Wiegmann, 1834, Telmatobius mantaro, from the central Cordillera of the Andes in Peru. Specimens were collected in humid lower montane forests and dry lower montane forests between 2240–3170 m elevation at the northern parts of the Departments of Huancavelica and Ayacucho. We also report a range extension of 262 km west of the type locality for Telmatobius mendelsoni De la Riva et al., 2012, which was found in sympatry with T. mantaro in Ayacucho. The new species has a snout–vent length of 48.9–55.8 mm in three adult males, and both sexes have tympanic membrane differentiated and tympanic annulus visible, a feature that distinguishes the new species from the majority of other Peruvian Telmatobius. We propose to assign the IUCN category Critically Endangered to this species because of its small area of distribution and its high likelihood of being infected by Batrachochytrium dendrobatidis.
  • Publicación
    A Pan-Amazonian species delimitation: High species diversity within the genus Amazophrynella (Anura: Bufonidae)
    (PeerJ Inc., 2018)
    Rojas R.R.
    ;
    Fouquet A.
    ;
    Ron S.R.
    ;
    Hernández-Ruz E.J.
    ;
    Melo-Sampaio P.R.
    ;
    Chaparro J.C.
    ;
    Vogt R.C.
    ;
    Carvalho V.T.
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    Pinheiro L.C.
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    Avila R.W.
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    Farias I.P.
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    Gordo M.
    ;
    Hrbek T.
    The effect of carboxymethylation and NH4I incorporation on the molecular dynamics of carrageenan films was studied. Broadband Dielectric Spectroscopy (BDS) assessed the presence of α and β relaxation processes. The effect of NH4I content was analyzed using the Havriliak-Negami model and parameterizing the temperature dependence of the relaxation times according to the Vogel-Fulcher-Tammann-Hesse (VFTH) equation. The glass transition temperature was found to decrease with the increase of NH4I content. These results suggest that carboxymethylation and the salt doping treatment increase the molecular mobility of NH4+ ions, making the films suitable for the development of solid electrolytes for energy storage applications. © 2018, © 2018 Taylor & Francis Group, LLC.
  • Publicación
    Molecular Phylogenetics and Taxonomy of the Andean Genus Lynchius Hedges, Duellman, and Heinicke 2008 (Anura: Craugastoridae)
    (The Herpetologists' League, 2016)
    Motta, AP
    ;
    Chaparro, JC
    ;
    Pombal, JP
    ;
    Guayasamin, JM
    ;
    De la Riva, I
    ;
    Padial, JM
    We infer species relationships within Lynchius, a frog genus with four species distributed along the paramos and cloud forests of the Andes of northern Peru and southern Ecuador, and assess species diversity in light of comparative analyses of anatomical traits and inferred relationships. Phylogenetic analyses rely on ~7000 base pairs of mtDNA and nuDNA sequences aligned using similarity-alignment and treealignment and optimized under maximum likelihood and parsimony criteria. Inferred relationships place Lynchius as the sister group of the widespread genus Oreobates and this clade as the sister group of the high Andean genus Phrynopus. Our analyses corroborate the dissimilar species Lynchius simmonsi as part of this clade and place it as the sister group of the remaining species of Lynchius. Parsimony and maximum likelihood analyses differ in the internal relationships of Lynchius with respect to the placement of L. flavomaculatus, L. nebulanastes, and L. parkeri, but support the existence of two unnamed species. External morphological comparisons provide diagnostic characters for the two new species, which are named and described herein. Lynchius tabaconas is sister to L. flavomaculatus and occurs at ~2800 m in the cloud forests of Santuario Nacional Tabaconas-Namballe, Cajamarca, Peru. Lynchius oblitus occurs in the same area but at a higher elevation (~3300 m) and is sister to a clade formed by L. flavomaculatus and L. tabaconas in parsimony analyses and to L. nebulanastes in maximum likelihood analyses. We provide a new diagnosis for each of the six species and for the genus, as well as some natural history notes.
  • Publicación
    The neotropical genus hapalotremus simon, 1903 (Araneae: Theraphosidae), with the description of seven new species and the highest altitude record for the family
    (Taylor and Francis Ltd., 2018)
    Ferretti N.
    ;
    Cavallo P.
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    Chaparro J.C.
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    Tamayo D.R.
    ;
    Seimon T.A.
    ;
    West R.
    New specimens of the genus Hapalotremus (Theraphosinae) are revised based on the examination of types and additional material collected in Argentina, Bolivia and Peru. A new generic diagnosis is proposed. New information and illustrations are provided for known species and seven new species were recognized and are newly described and illustrated. Hence, Hapalotremus comprises 10 valid species, distributed along the Andes and Yungas in western South America. All species are keyed and mapped. New taxonomic features are included in the descriptions and the detail of embolus keels morphology and positions are described for the first time for the genus. Information on species habitat is included. The highest altitude record for a Theraphosidae spider, living at 4524 m above sea level, is reported.
  • Publicación
    Underestimated anuran radiations in the high andes: Five new species and a new genus of holoadeninae, and their phylogenetic relationships (anura: Craugastoridae)
    (Oxford University Press, 2018)
    De La Riva I.
    ;
    Chaparro J.C.
    ;
    Castroviejo-Fisher S.
    ;
    Padial J.M.
    Despite recent efforts to accelerate exploration and species description, the diversity of high Andean frogs remains highly underestimated. We report high levels of species diversity in direct-developing frogs or terraranas inhabiting the wet puna and adjacent cloud forests of the Amazonian versant of the Andes in Bolivia and Peru. Descriptive evidence of external morphology, distribution patterns and molecular phylogenetic analyses support the existence of nine unnamed species in two clades, which represents a 30% increase in species diversity for those clades. The relationships of these species and their relatives in Holoadeninae are tested using nuclear and mitochondrial genes for 159 terminals representing the 11 genera in this subfamily and 25 species of previously unknown relationships. Our results corroborate species monophyly in all but three cases and support the monophyly of all Holoadeninae genera, albeit the position of some differs between analyses. We propose a new genus (Microkayla gen. nov.) for the clade containing all Bolivian species formerly in Psychrophrynella plus five species from southern Peru. The new genus is monophyletic and supported by anatomical synapomorphies. Psychrophrynella is re-diagnosed and redefined to include three species from the Andes of southern Peru. We discuss the taxonomic instability associated with Noblella and Psychrophrynella due to the fact that the type species of both genera share a number of traits that support a close relationship. We also name and describe three new species of Bryophryne and two of Microkayla from Peru, provide baseline data for the future description of four Bolivian species of Microkayla, and describe the unknown mating calls of two species. Our results support that the grasslands of the Amazonian versant of the Andes harbour a large diversity of species with small altitudinal and horizontal distributions that replace each other along a latitudinal axis. These species belong to different lineages whose closest relatives are forest species, often from distant parts of the continent. These patterns suggest that high Andean environments were colonized several times independently by species with forest ancestors and which radiated into a multitude of species with remarkably similar ecomorphologies. The extent of these radiations remains obscured by a still rudimentary knowledge of species diversity due to insufficient fieldwork and taxonomic research. © 2017 The Linnean Society of London, Zoological Journal of the Linnean Society.