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Range extension and description of the juvenile plumage of the Masked Mountain-tanager (Buthraupis wetmorei, Thraupidae) [Ampliación de la distribución conocida y descripción del plumaje juvenil del Azulejo de Wetmore(Buthraupis wetmorei, Thraupidae)]
(2011)
Leal C.A.
;
Meneses H.S.
;
Gereda O.
;
Cuervo A.M.
;
Bonaccorso, Elisa
Here we report the first record of the Masked Mountain-Tanager (Buthraupis wetmorei) for the Eastern Andes of Colombia, which represents the discovery of the most northern and isolated population (c. 450 km from the nearest locality) of this rare species. The Masked Mountain-Tanager inhabits locally the ecotone between humid elfin Andean forests and paramo. Up to now, it was known from scattered localities from the Huancabamba region in northernmost Peru to the middle section of the Central Andes in Quindío, Colombia. We report observations and photographs of this species from the Tamá National Park, Norte de Santander, Colombia. We found various adults and juveniles joining a flock with the Golden-crowned Tanager (Iridosornis rufivertex) at 3050 m elevation in a subparamo/treeline transition zone. Based on photographs from Tamá and a specimen from Tungurahua, Ecuador, we comment on the juvenile plumage of the Masked Mountain-tanager.
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Advertisement and combat calls of the glass frog Centrolene lynchi (Anura: Centrolenidae), with notes on combat and reproductive behaviors
(2011)
Dautel N.
;
Maldonado A.L.S.
;
Abuza R.
;
Imba H.
;
Griffin K.
We describe the advertisement and combat calls, combat behavior, and reproductive behavior of the glass frog Centrolene lynchi, an endemic species of the cloud forests of Ecuador. The typical advertisement call consists of a tonal note and 1-3 peaked notes, each with 1-3 pulses. Variations on this advertisement call include the addition of a short note before the tonal note, as well as the absence of the tonal note. These modifications may be similar to the described call modifications of other anurans in response to the presence of conspecific females and males, potential predators and/or changes in the sound environment. Additionally, we describe the combat call emitted during previously undescribed venter-toventer combat between males. The discovery of this combat behavior is consistent with the hypothesis that venter-to-venter combat behavior is a shared derived trait of the subfamily Centroleninae. Finally, we describe male reproductive habits and development of the species, including egg attendance by males and implied male parental care. © 2011 Departamento de Ciências Biológicas.
Scopus© Citations 40 49
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Species distributions models: A synthetic revision [Modelos de distribución de especies: Una revisión sintética]
(2011)
Mateo R.G.
;
Felicísimo A.M.
;
Muñoz J.
In the last years a new tool has become widely used in ecological studies: species distribution models. These models analyze the spatial patterns of presence of organisms objectively, by means of statistical and cartographic procedures based on real data. They infer the presence of potentially suitable areas according to their environmental characteristics. Data stored in natural history collections can be used for this purpose, which gives new opportunities to use to these types of data. The models have evolved from the analysis of single species to the study of hundreds or thousands of taxa which are combined for the assessment of biodiversity and species richness. In this paper we review the variety of methods used, their potential and weaknesses, and the limiting factors that influence the interpretation of species distribution models.
Scopus© Citations 118 35
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The taxonomic identity of the neglected Racomitrium stenocladum (Bryophyta, Grimmiaceae)
(2011)
Larraín J.
;
Quandt D.
;
Muñoz, J
[No abstract available]
Scopus© Citations 1 33
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A new frog of the genus Pristimantis (Amphibia: Strabomantidae) from the high Andes of Southeastern Ecuador, discovered using morphological and molecular data
(2011)
Arteaga-Navarro A.F.
;
Guayasamin, Juan M.
We describe a new small sized (SVL in females ≤ 25.7 mm; in males, ≤20.1 mm) Pristimantis, associated with bamboodominated forests in the Reserva Mazar, Andes of Southeastern Ecuador, at elevations between 2876-2989 m. This species is assigned to the P. orestes group, from whose members it differs by the absence of tubercles on heel and outer edge of tarsus, lacking a discoidal fold, presence of slightly expanded finger and toe pads, and bright yellow blotches on groi , axilla and anterior surfaces of thigh. The advertisement call of the new species consists of a series of short, indistinctly pulsed notes, and has a dominant frequency of 2.50-2.56 kHz. A molecular phylogeny based on a fragment of the mitochondrial gene 12S shows that the new species is sister to a clade formed by Pristimantis simonbolivari and an undescribed Pristimantis. © 2011 Magnolia Press.
Scopus© Citations 17 38
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Range extensions and other noteworthy bird records from the Ecuadorian Andes
(2011)
Bonaccorso, Elisa
;
Arzuza D.
;
Buitrón-Jurado G.
;
Charpentier A.L.
;
Juiña M.
We present the results of nine ornithological expeditions aimed at documenting bird diversity in areas of Ecuador that remain relatively underexplored. The majority of new records were made along the western Andes, either in the central or the southern extensions of the outer slope, suggesting that several species may have more continuous distributions than previously thought. Among the most interesting records are those of Collared Inca Coeligena torquata in western Azuay, Tricoloured Brush Finch Atlapetes tricolor in the Cerro de CelicaGuachanamá, in Loja, and White-browed Spinetail Hellmayrea gularis and Bluish Flowerpiercer Diglossa caerulescens in the Cordillera de Chilla, in El Oro. These new records in the south-west of the country suggest that extensive sampling is still needed in this region. We also report new altitudinal records for several species and suggest that they may represent range extensions rather than occasional records. © British Ornithologists' Club 2011.
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Notes on the diet of the Band-bellied Owl (Pulsatrix melanota) in Ecuador [Notas sobre la dieta del buho ventribandeado (Pulsatrix melanota) en Ecuador]
(2011)
Cadena-Ortiz H.
;
Bahamonde-Vinueza D.
;
Bonaccorso, Elisa
[No abstract available]
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A revision of species diversity in the neotropical genus Oreobates (Anura: Strabomantidae), with the description of three new species from the amazonian slopes of the andes
(2012)
Padial J.M.
;
Chaparro J.C.
;
Castroviejo-Fisher S.
;
Guayasamin, Juan M.
;
Lehr E.
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 Kosipata 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. © American Museum of Natural History 2012.
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A new species of Andean toad (Bufonidae, Osornophryne) discovered using molecular and morphological data, with a taxonomic key for the genus
(2011)
Páez-Moscoso D.J.
;
Guayasamin, Juan M.
;
Yánez-Muñoz M.
Combining a molecular phylogeny and morphological data, we discovered a new species of Osornophryne from the Amazonian slope of the Ecuadorian Andes. Morphologically, the new taxon is distinguished from all others species in Osornophryne by having the Toes IV and V longer than Toes I-III, a short and rounded snout with a small rostral papilla, and conical pustules on flanks. The new species previously was confused with O. guacamayo. A taxonomic key is provided for all known species of Osornophryne. © Diego J. Páez-Moscoso et al.
Scopus© Citations 13 29
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A new minute Andean Pristimantis (Anura: Strabomantidae) from Venezuela
(2012)
Barrio-Amorós C.L.
;
Guayasamin, Juan M.
;
Hedges S.B.
A new species of Pristimantis is described from the Venezuelan Andes. The new species is the smallest in its genus known in Venezuela and belongs to the Pristimantis unistrigatus Group. It differs from the rest of Venezuelan Andean congeners in body size (mean male SVL < 21.3 mm, female SVL < 26.3 mm), expanded discs on fingers and toes, absence of dorsolateral folds, and a distinctive call consisting in 2-5 cricket-like short notes. The new species inhabits the southwestern part of the Cordillera de Mérida in Venezuela and the Venezuelan side of the Cordillera Oriental de Colombia, and could be present on the Colombian portion of the cordillera as well. © 2012 Departamento de Ciências Biológicas.
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