About
37
Publications
18,554
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
299
Citations
Introduction
Publications
Publications (37)
The emission of calls is one of the most distinctive and important reproductive traits in anurans. Given the biological significance of vocalizations, this trait is also useful for identification proposes and is key in recognizing cryptic diversity. However, the majority of the calls from tropical ecosystems, especially in the high Andean mountains...
The Atelopus (or harlequin frogs) have become a symbol of the ongoing efforts to conserve biodiversity in Ecuador over the past few decades. Atelopus ignescens, also known as jambato, was previously considered to be an extinct species until it was rediscovered in the Andean locality of Angamarca, Ecuador. This study presents and describes the calls...
Centrolenidae is a Neotropical family widely distributed in Central and South America, with its species richness concentrated in the tropical Andes. Several taxonomic problems have been identified within this family, mostly related to species with broad geographic distributions. In this study, we assessed and redefined the species boundaries of the...
This is a rapid visual guide from the Fiel Museum of Chicago. It details 30 species of anuran amphibians, recorded in eight remnants of montane forests in the province of Carchi.
The explosive diversity of rainfrogs (Pristimantis spp) reaches its highest levels in the mountains of the Tropical Andes, with remarkable cryptic species mainly in unexplored areas of Ecuador. Based on phylogenetics, morphometric traits, skull osteology and bioacoustics, we describe two new species of Pristimantis, previously confused with Pristim...
In this study we describe for the first time the calls of Pristimantis galdi and Pristimantis katoptroides. Recordings were obtained in Sangay National Park, Ecuador. We highlight the importance of recording P. galdi since its call has been recorded after 153 years of having been described as a species. The call of P. galdi consists of 7 to 9 short...
Acoustic communication in rodents is complex and varied. However, bioacoustic studies of rodents in the wild are limited and scarce, most are performed, under controlled laboratory conditions. We recorded the alarm call of the short-tailed porcupine in the wild for the first time. Recordings were obtained in Guabisai, Sangay National Park, Ecuador....
We describe for the first time the call of Rhinella festae (Peracca, 1904), recording it in captivity inside a plastic bag. The call is composed of 1 to 2 multi-pulsed notes (2–5 pulses), has an average duration of 0.72 s, and a dominant frequency of 1.40 kHz. This species is characterized by the absence of vocal slits and sacs, so the emission of...
We provide several lines of evidence to delimit a new species of Hyloscirtus and define its phylogenetic position inside the Hyloscirtus bogotensis group. The new species is the sister taxon to Hyloscirtus mashpi and is related to a clade formed by H. alytolylax and a putative new species from the province of El Oro in, southwestern Ecuador. Hylosc...
The Province of Carchi is a strategic area, where the most important remnants of tropical forests of the Ecuadorian Chocó come together. These contact the western foothills of the Andes, between the Mira and San Juan river basins, and ascend to the paramo platforms above 3400 meters in altitude and all the way to 4800 meters. This impressive altitu...
This note describes the advertisement calls of Rhaebo haematiticus, recorded in Tobar Donoso, province of Carchi‒Ecuador, providing for the first time a quantitative analysis of its spectral and temporal variables. The calls of three populations were analyzed and compared with calls of Rhaebo blombergi and Rhaebo guttatus, two species of the genus...
A new species of frog of the genus Pristimantis is described from the paramos of the Nudo de Cajanuma, Podocarpus National Park, on the border between the provinces of Loja and Zamora-Chinchipe, Ecuador. The new species is readily distinguished from all other species of Pristimantis by its large body size (snout-vent length: 50.0–50.5 mm in adult f...
p>We describe a new species of terrestrial frog of the genus Pristimantis , located in the south Andes of Ecuador. The new species is characterized by: presence of dentigerous processes of vomer that are triangular in outline; ulnar tubercles flattened and disposed in a longitudinal, fold-like row; and a distinctive ventral coloration light to dark...
p>We describe a new species of terrestrial frog of the genus Pristimantis , located in the south Andes of Ecuador. The new species is characterized by: presence of dentigerous processes of vomer that are triangular in outline; ulnar tubercles flattened and disposed in a longitudinal, fold-like row; and a distinctive ventral coloration light to dark...
A new frog in the genus Pristimantis is described from a cloud forest on the western flanks of the Cordillera del Cóndor and eastern Andean slopes in the province of Zamora Chinchipe, southeastern of Ecuador. We inferred its phylogenetic position using DNA sequences of mitochondrial and nuclear genes. The new species is strongly supported as part o...
Pristimantis es el grupo más diverso de vertebrados a nivel mundial, ya que aglutina alrededor del seis por
ciento de la diversidad total de anfibios del mundo (587 especies) y el 15% de las especies del Neotrópico. En
Ecuador, de 587 especies de anfibios reportadas, más de un cuarto (200 especies) son Pristimantis. Se
describen un promedio de 4 es...
We describe a small frog of the genus Pristimantis inhabiting bromeliads (snout-vent length
20.3‑23.3 mm in females, 16.1‑17.4 mm in males), from a remote sandstone plateau of the
Cordillera del Condor, in southeastern Ecuador, with an altitudinal range of 2,045‑2,860 m. A
phylogeny based on sequences of DNA (mitochondrial and nuclear genes) suppor...
We provide information about the composition of the terrestrial frogs of the genus Pristimantis in the upper basin of the Upano River, located on the Eastern slope of the Andes Mountain range in the Morona Santiago province, south-east of Ecuador. The compendium of the 37 species comes from collections conducted on an altitudinal gradient of betwee...
We describe a new species of frog of the genus Chiasmocleis from the montane forests of southeastern
Ecuador, at the western slopes of Cordillera del Cóndor, between 1,224‑1,630 m of elevation.
Based on new sequences of mitochondrial and nuclear DNA we present phylogenetic relationships
of the new species and its congeners. The phylogeny shows a cl...
We describe a new species of climbing rat of the genus Rhipidomys based on cranial and external morphology, morphometrics, and phylogenetic analyses of cytochrome b gene. This taxon was compared with species of Rhipidomys present in Ecuador, principally R. latimanus, which is a closely related species based on molecular analysis, and with several s...
En los meses de diciembre y febrero del 2010-2011 se realizaron estudios en el complejo lacustre de Sardinayacu, localizado en el Parque Nacional Sangay, en los cuales se trabajó 10 días. El objetivo de este estudio fue analizar y describir bioacústicamente las vocalizaciones de los anuros en la laguna Cormorán (una de las lagunas del complejo lacu...
We describe Pristimantis tinguichaca sp. nov., a member of the Pristimantis unistrigatus species group, from the cloud forests of Sangay National Park located on the eastern slopes of the Andes in southeastern Ecuador. The new species was collected in cloud forests and cattle pastures at 2,750–2,830 m elevation. It differs from other members of the...
We described the vocalizations of Pristimantis ganonotus, from recordings made in June 2014
in Complejo Lacustre de Sardinayacu (Parque Nacional Sangay, Ecuador). We analyzed the
spectral and temporal parameters of seventy calls recorded from five individuals. Based on the
quantifications, we designate P. ganonotus as a species with a wide vocal re...
Pristimantis ganonotus. Photo by Jorge Brit
Pristimantis ganonotus. Photo by Jorge Brito
We report two new localities for Podiceps major in Ecuador: La Tembladera wetland and the Tahuín dam. At the last locality we found the first nest from Ecuador, for which we describe its structure and the building behaviour of the couple. Furthermore, we describe the courtship and territorial calls of the species.
Resumen
Reportamos dos nuevas loc...
We describe a new species, a medium size terrestrial frog (LRC 21.7‑24.9 mm in females, and
15.2‑17.8 mm in males); belong to the Pristimantis genus, from the sandstone plateau of the
Cordillera del Condor at southeastern Ecuador, at 2300 m high. The new species differs from
its congeners in Ecuador for its distinctive coloration pattern, ochraceou...
Information is presented on morphological variation in the frog, Phyllomedusa ecuatoriana,
with a description ot the tadpole, vocalizations, and notes on its natural history and distribution,
based on material recently collected in the Cordillera del Cóndor, Zamora Chinchipe
Province, Ecuador. Phyllomedusa ecuatoriana is of médium size (male SVL le...
Reportamos información descriptiva de las vocalizaciones de dos especies de ratones, analizando y describiendo sus variables espectrales y temporales. Reithrodontomys soderstromi presenta vocalizaciones similares a un silbido de frecuencia constante con una frecuencia dominante promedio de 10.16 ± 0.20 kHz; mientras que Thomasomys paramorum vocaliz...
We describe a new species of spiny green frog of the genus Pristimantis diagnosed by having
tympanum, cranial crest, large conical tubercles on the posterior and anterior limbs, and by its
uniform cream ventral coloration. Bioacoustics information about the warning and courtship calls
and detailed comparisons of the new species with similar species...
Presentamos la primera descripción del llamado de advertencia de Noblella lochites sobre la base de grabaciones obtenidas en la Cordillera del Cóndor, provincia de Zamora-Chinchipe, Ecuador. El llamado de N. lochites está conformado por 6-8 notas pulsadas de 369-537 ms, con una frecuencia dominante de 3.51-3.93 kHz. Variación en el número de notas...
We describe a new species of terrestrial frog of the genus Pristimantis of medium-size (the
SVL of males from 22.18 to 25.13 mm) found in the cloud forests of the eastern foothills of
the Sangay National Park, located in the mid-eastern region of Ecuador at an elevation of
2750 meters. We assign the new species Pristimantis latericius sp. nov., to...
Ecuadorian frogs of genus Hyloscirtus comprises 16 described species, of which eleven belong to
the H. larinopygion group. They are restricted to the flanks of the Andes, both east and west.
An assessment of the herpetofauna in the southern part of Cordillera del Condor (montane
forests on sandstone plateaus) province of Zamora Chinchipe, Ecuador,...
We describe a new species of Noblella from wet, montane forest at the Sardinayacu Lake Complex between 1600–1920
m elevation in Morona Santiago, Ecuador. The new species differs from congeners in having three phalanges in the fourth
finger, finely tuberculate skin on the dorsal body, pointed digital tips with marginal grooves on the fingers, a yell...
RESUMEN Evaluaciones de herpetofauna en la provincia de Zamora Chinchipe, Ecuador, am-plían el rango de distribución geográfica de la rana venenosa Hyloxalus mystax (Duell-man y Simmons, 1988), en 51.4 kilómetros al sur del área conocida. Se provee infor-mación sobre el hábitat y se describe por primera vez el canto de los machos. ABSTRACT Evaluati...
RESUMEN Evaluaciones de la herpetofauna en la provincia de Zamora Chinchipe, Ecuador, am-plían el rango de distribución de Centrolene condor (Cisneros-Heredia y Morales-Mite 2008), en 30,7 kilómetros al sur de la localidad tipo. Se presenta información sobre el hábitat y los renacuajos; se describe por primera vez el canto de los machos y se hacen...