Browsing by Autor "Rodrigo Aguayo"

Now showing 1 - 15 of 15

A NEW GLASSFROG OF THE COCHRANELLA GRANULOSA GROUP (ANURA: CENTROLENIDAE) FROM A BOLIVIAN CLOUD FOREST
(Herpetologists' League, 2006) Rodrigo Aguayo; Michael B. Harvey
We describe a new species of Cochranella from cloud forests in La Paz, Bolivia. The new species is assigned to the C. granulosa Group and characterized by the presence of crenulate folds, distinctive coloration, and the first finger shorter than the second. The new species occurs in sympatry with C. spiculata and C. sp.
A new species of Hyalinobatrachium (Anura: Centrolenidae) from the Amazonian slopes of the central Andes, with comments on the diversity of the genus in the area
(Q15088586, 2009) Santiago Castroviejo‐Fisher; José M. Padial; Juan C. Chaparro; Rodrigo Aguayo; Ignacio De la Riva
We describe a new species of Hyalinobatrachium from the Amazonian slopes of the Andes in Peru and Bolivia on the basis of morphological, bioacoustic and genetic characteristics. Hyalinobatrachium carlesvilai sp. nov. can be distinguished from other species of Hyalinobatrachium by the combination of the following characters: (1) truncate snout in dorsal and lateral view; (2) white pericardium; (3) enameled dorsal, tarsal and cloacal folds; (4) hand webbing formula III 2 – – 1 + IV; (5) iris cream; (6) advertisement call consisting of a single, frequency-modulated note with a pulsed section followed by a tonal section. The new species had been previously identified as Hyalinobatrachium munozorum and H. bergeri. The advertisement call of the new species was previously assigned to H. bergeri. Here we describe the previously unknown call of Hyalinobatrachium bergeri. Additionally, we study the taxonomic status of H. lemur and H. pellucidum and place the former as synonym of the later. We extend the distribution of H. pellucidum to Departamento Cusco in southern Peru.
A Revision of Species Diversity in the Neotropical GenusOreobates(Anura: Strabomantidae), with the Description of Three New Species from the Amazonian Slopes of the Andes
(American Museum of Natural History, 2012) José M. Padial; Juan C. Chaparro; Santiago Castroviejo‐Fisher; Juan M. Guayasamin; Edgar Lehr; Amanda J. Delgado; Marcos Vaira; Mauro Teixeira; Rodrigo Aguayo; Ignacio De la Riva
We revisit species diversity within Oreobates (Anura: Strabomantidae) by combining molecular phylogenetic analyses of the 16S rRNA amphibian barcode fragment with the study of the external morphology of living and preserved specimens. Molecular and morphological evidence support the existence of 23 species within Oreobates, and three additional candidate species (Oreobates sp. [Ca JF809995], Oreobates sp. [Ca EU368903], Oreobates cruralis [Ca EU192295]). We describe and name three new species from the Andean humid montane forests of Departamento Cusco, southern Peru: O. amarakaeri New Species from Río Nusinuscato and Río Mabe, at elevations ranging from 670 to 1000 m in the Andean foothills; O. machiguenga, new species, from Río Kimbiri (1350 m), a small tributary of the Apurimac River, in the western versant of Cordillera Vilcabamba; and O. gemcare, new species, from the Kosñipata Valley at elevations ranging from 2400 to 2800 m. The three new species are readily distinguished from all other Oreobates by at least one qualitative morphological character. Three species are transferred to Oreobates from three genera of Strabomantidae: Hypodactylus lundbergi Pristimantis crepitans, and Phrynopus ayacucho (for which the advertisement call, coloration in life, and male characteristics are described for first time). Oreobates simmonsi is transferred to the genus Lynchius. Hylodes verrucosus is considered a junior synonym of Hylodes philippi. In addition, H. philippi is removed from the synonymy of O. quixensis and considered a nomem dubium within Hypodactylus. The inclusion of Phrynopus ayacucho in Oreobates extends the ecological range of the genus to the cold Andean puna. Oreobates is thus distributed from the Amazonian lowlands in southern Colombia to northern Argentina, reaching the Brazilian Atlantic dry forests in eastern Brazil, across an altitudinal range from ca. 100 to 3850 m.
An assessment of the taxonomic validity of three species of marsupial frogs (Anura: Hemiphractidae: Gastrotheca) from the Yungas of Bolivia based on external morphology and cranial osteology
(Q15088586, 2021) Claudia Lansac; Rodrigo Aguayo; Ignacio De la Riva
The genus Gastrotheca (Anura: Hemiphractidae) is a group of marsupial frogs particularly diverse in Andean regions. Several taxonomic studies of this genus have been conducted in the humid cloud forestsor Yungasof the Andean eastern slopes of central Bolivia (departments of Cochabamba and Santa Cruz). Yet, the distinction among three species that occur sympatrically in these forests, G. lauzuricae (proposed as a junior synonym of G. coeruleomaculatus in 2015), G. piperata, and G. splendens, remains unclear since the morphological characters that purportedly support their differentiation are variable and partly shared among them. We have carried out external morphological studies, including multivariate morphometric analyses, to assess how they support the taxonomic status of these three species. We also evaluated characters of the cranial osteology of a sample of six individuals using micro CT-scanning. Principal component and linear discriminant analyses resulted in a great overlap among the putative species. Cranial osteological comparisons did not reveal highly significant differences among them, but suggested that different degrees of hyperossification could be related to the developmental state of individuals. Our results indicate that most morphological and osteological reported differences between the three species likely represent intraspecific variation. Thus, we propose that the three nominal species belong to a single biological entity, for which the name Gastrotheca splendens (Schmidt, 1857) has priority. We also restrict the name Gastrotheca coeruleomaculatus (Werner, 1899) to externally similar congeneric populations from the Yungas forests of department of La Paz, but highlighting the need of a detailed evaluation of their taxonomic identity.
First record of chytridiomycosis in Bolivia (Rhinella quechua; Anura: Bufonidae)
(Inter-Research, 2008) J. Sebastián Barrionuevo; Rodrigo Aguayo; Esteban O. Lavilla
The finding of tadpoles of Rhinella quechua (Huayramayu River, Carrasco National Park, Cochabamba, Bolivia) with oral abnormalities caused by Batrachochytrium dendrobatidis constitutes the first record of this fungal infection reported for Bolivian amphibians.
Living in fast‐flowing water: Morphology of the gastromyzophorous tadpole of the bufonid Rhinella quechua (R. veraguensis group)
(Wiley, 2009) Rodrigo Aguayo; Esteban O. Lavilla; M. Florencia Vera Candioti; T. Camacho
We describe the bufonid gastromyzophorous tadpoles of Rhinella quechua from montane forest streams in Bolivia. Specimens were cleared and stained, and the external morphology, buccopharyngeal structures, and the musculoskeletal system were studied. These tadpoles show a combination of some traits common in Rhinella larvae (e.g., emarginate oral disc with large ventral gap in the marginal papillae, labial tooth row formula 2/3, prenarial ridge, two infralabial papillae, quadratoorbital commissure present, larval otic process absent, mm. mandibulolabialis superior, interhyoideus posterior, and diaphragmatopraecordialis absent, m. subarcualis rectus I composed of three slips), some traits apparently exclusive for the described species of the R. veraguensis group (e.g., second anterior labial tooth row complete, lingual papillae absent, adrostral cartilages present), and some traits that are shared with other gastromyzophorous tadpoles (e.g., enlarged oral disc, short and wide articular process of the palatoquadrate, several muscles inserting on the abdominal sucker). In the context of the substantial taxonomic and nomenclatural changes that the former genus Bufo has undergone, and despite the conspicuous morphological differences related to the presence of an abdominal sucker, the larval morphology of R. quechua supports including it in the genus Rhinella and placing it close to species of the R. veraguensis assemblage.
New elevational record for Walker’s Slender Snake, Tachymenis attenuata Walker 1945 (Squamata: Dipsadidae), with notes on taxonomy and natural history
(University of Kansas, 2022) Oliver Quinteros; Rodrigo Aguayo
Numbers of ventral and subcaudal scales and solid maxillary teeth distinguish the latter from congeners and differentiate the two subspecies (T
Nuevas citas de Eleutherodactylus Duméril y Bibron, 1841 (Anura, Leptodactylidae) para Bolivia
(Spanish National Research Council, 2004) José M. Padial; Lucindo Gonzáles; Steffen Reichle; Rodrigo Aguayo; Ignacio De la Riva
En este trabajo se publican los primeros registros de cinco especies del género Eleutherodactylus (Anura, Leptodactylidae) para Bolivia: E. altamazonicus en los Departamentos de Pando y La Paz; E. carvalhoi en Cochabamba; y E. ockendeni, E. skydmainos y E. zimmermanae en Pando. Además, se aportan las primeras citas de E. cruralis para el Departamento de Pando, de E. danae para Beni y La Paz, de E. platydactylus para Beni, de E. toftae para Pando y La Paz y de E. ventrimarmoratus para La Paz. La diversidad conocida de Eleutherodactylus en Bolivia es de 25 especies, aunque los problemas taxonómicos sin resolver, las especies en descripción y el alto número de especies aún no citadas que se considera probable encontrar, hacen que aún desconozcamos la verdadera diversidad de este género en Bolivia.
Predation by a Black Mussurana, Clelia clelia (Daudin 1803) (Serpentes: Dipsadidae), on an Andean Lancehead, Bothrocophias andianus (Amaral 1923), in Bolivia
(University of Kansas, 2021) Oliver Quinteros; Rodrigo Aguayo
Predation on Gray-breasted Wood-Wren bird by False Coral Snake Oxyrhopus petolarius (Serpentes: Dipsadidae) in the Bolivian Yungas
(2021) Oliver Quinteros; Rodrigo Aguayo
Priority areas for amphibian conservation in a neotropical megadiverse country: the need for alternative, non place based, conservation
(Springer Science+Business Media, 2011) Dirk Embert; Steffen Reichle; Daniel M. Larrea‐Alcázar; Claudia Cortez; Arturo Muñoz; Lucindo Gonzáles; Rossy Montaño; Rodrigo Aguayo; Enrique Domic; José M. Padial
Redescription and biogeography of Mabuya cochabambae Dunn with comments on Bolivian congeners (Lacertilia: Scincidae)
(Q15088586, 2008) Michael B. Harvey; Rodrigo Aguayo; Aurélien Miralles
On the basis of new material, observations in the field, and data from living specimens, we redescribe Mabuya cochabambae Dunn and discuss its distribution and biogeography. Morphological and molecular evidence strongly suggests that M. cochabambae and M. dorsivittata are sister taxa. In addition to M. cochabambae, we tabulate morphological data for three other Mabuya occurring in Bolivia: M. dorsivittata Cope, M. frenata (Cope), and M. guaporicola Dunn. Mabuya altamazonica Miralles et al. and M. nigropunctata (Spix) both occur in Bolivia, specimens of the former coming from the western lowlands and of the latter from the eastern lowlands of central Santa Cruz. Finally, we propose a new key to the eight species of Mabuya occurring in Bolivia.
Rediscovery of Dipsas peruana (Serpentes: Dipsadidae) in Bolivia and extension of its distribution
(University of São Paulo, 2025) Oliver Quinteros-Muñoz; Paola De la Quintana; Pedro Gómez-Murillo; Rodrigo Aguayo; Konrad Mebert
Rediscovery of the Rare Atractus bocki, with Assessment of the Taxonomic Status of Atractus canedii (Serpentes: Colubridae: Dipsadinae)
(The Society for the Study of Amphibians and Reptiles, 2009) Paulo Gustavo Homem Passos; Rodrigo Aguayo; Gustavo Scrocchi
Atractus bocki was described based on a single specimen from the Cochabamba region in Bolivia, and since its original description, there have been no further records for the species. During the examination of Argentinean and Bolivian collections, we found four additional specimens of this poorly known snake. In this paper, we describe these individuals and report new data on meristic and morphometric variation for A. bocki. We also evaluate the taxonomic status of Atractus canedii and propose its synonymy with A. bocki.
Sobre la presencia de Vitreorana oyampiensis (Lescure, 1975) (Amphibia: Centrolenidae) en Bolivia
(2009) Arturo Muñoz; Rodrigo Aguayo