DSpace Home
→
Repositorio de Publicaciones Científicas
→
Artículos
→
Artículos en revistas científicas indexadas (Journals)
→
Browsing Artículos en revistas científicas indexadas (Journals) by Subject

Browsing Artículos en revistas científicas indexadas (Journals) by Subject "Ranas"

Now showing items 1-20 of 29

A new species of direct-developing frog of the genus Pristimantis (Anura: Terrarana: Craugastoridae) from Cordillera del Cóndor, Ecuador, with comments on threats to the anuran fauna of the region

Ron Melo, Santiago Rafael (2017)

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 ...
A new species of terrestrial frog of the genus Noblella Barbour, 1930 (Amphibia: Strabomantidae) from the Llanganates-Sangay Ecological Corridor, Tungurahua, Ecuador

Ron Melo, Santiago Rafael (2019-08-12)

We describe a new species of terrestrial frog of the genus Noblella from the eastern versantsoftheEcuadorianAndesintheupperPastazawatershed.Noblellanaturetrekii sp. n. differs from its Ecuadorian congeners by the presence ...
A new species of terrestrial frog Pristimantis (Strabomantidae) from the upper basin of the Pastaza River, Ecuador

Ron Melo, Santiago Rafael (2019-03-19)

We describe a new species of Pristimantis from the montane forest of the Río Zuñag Ecological Reserve, upper basin of the Pastaza River, Ecuador. Pristimantis mallii sp. n. is characterized by a snout-vent length of 11.6–21.3 ...
A new treefrog from Cordillera del Cóndor with comments on the biogeographic affinity between Cordillera del Cóndor and the Guianan Tepuis (Anura, Hylidae, Hyloscirtus)

Ron Melo, Santiago Rafael (2018-12)

The Hyloscirtus larinopygion group is a clade of 16 species of large hylids that inhabit cascading Andean streams. They have brown coloration that, in most species, contrasts with bright marks. Herein morphological and ...
A polymorphism in oocyte pigmentation in natural populations of the glass frog Espadarana prosoblepon (Centrolenidae)

Romero Carvajal, Marco Andrés; Ron Melo, Santiago Rafael (2021)

The adaptive role of amphibian oocyte melanic pigmentation and its molecular control are still elusive. Here we present evidence of a polymorphism in egg pigmentation in the emerald glass frog Espadarana prosoblepon. In ...
Advertisement calls and DNA sequences reveal a new species of Scinax (Anura: Hylidae) on the Pacific lowlands of Ecuador

Ron Melo, Santiago Rafael (2018-09)

Scinax is a speciose genus of Neotropical hylid frogs. We describe a new species from western Ecuador (elevations between 0 and 1207 m) using morphology, vocalizations, and DNA sequences. We also present a new phylogeny ...
Analysis of cell size in the gastrula of ten frog species reveals a correlation of egg with cell sizes, and a conserved pattern of small cells in the marginal zone

Del Pino Veintimilla, Eugenia; Vargas, Alexandra (10/07/2016)

We investigated the relationship between egg and cell sizes in the early gastrula of ten species of frogs with eggs of 1,100-3,500 μm diameters. We asked whether differences in cell size of the vegetal region, blastocoel ...
Call structure and activity period of Pristimantis festae, a high-elevation anuran in Ecuador

Merino Viteri, Andrés Ricardo (2019-01)

Perhaps the most well-studied aspect of anuran communication, vocalizations play an integral role in mate attraction (Littlejohn 1977; Gerhardt 1991; Tobias et al. 1998), demarcation of territory (Wagner 1989; Byrne 2009), ...
Caracterización molecular de péptidos antimicrobianos a partir de muestras de piel de Agalychnis spurrelli (Anura: Hylidae)

Pérez Vaca, Oscar Damián; Rivera Íñiguez, Miryam Rosita (02/11/2015)

Las secreciones de la piel de Agalychnis spurrelli han probado tener una marcada actividad antimicrobiana sobre diferentes microrganismos patógenos por la presencia de biomoléculas en ellas. Se realizaron análisis moleculares ...
Comparative sperm ultrastructure of twelve leptodactylid frog species with insights into their phylogenetic relationships

Rivera Iñiguez, Miryan Rosita (2016-12)

The spermatozoa of representatives of three Neotropical frog subfamilies, Leiuperinae, Leptodactylinae and Paratelmatobiinae, were observed using Transmission Electron Microscopy, with the aim of identifying ultrastructural ...
Description and phylogenetic relationships of a new species of treefrog of the Osteocephalus buckleyi species group (Anura: Hylidae)

Ron Melo, Santiago Rafael (2020-02)

The Osteocephalus buckleyi species group is widely distributed in primary and secondary forests of the Amazon Basin and Guiana Region. Based on integrative analysis, including morphological and genetic data, we estimate ...
Description and phylogenetic relationships of a new trans-Andean species of Elachistocleis Parker 1927 (Amphibia, Anura, Microhylidae)

Ron Melo, Santiago Rafael (2020-05)

Elachistocleis is a Neotropical genus of microhylid frogs with 18 species, most of which occur east of the Andes in South America. Here, we present a new phylogeny of Gastrophryninae and describe and name a new species of ...
Diversification history of clown tree frogs in Neotropical rainforests (Anura, Hylidae, Dendropsophus leucophyllatus group)

Ron Melo, Santiago Rafael (2020-09)

General consensus emphasizes that no single biological process can explain the patterns of species’ distributions and diversification in the Neotropics. Instead, the interplay of several processes across space and time ...
Elevational and microclimatic drivers of thermal tolerance in Andean Pristimantis frogs

Merino Viteri, Andrés Ricardo; Ron Melo, Santiago Rafael (2019)

Aim: We analysed elevational and microclimatic drivers of thermal tolerance diversity in a tropical mountain frog clade to test three macrophysiological predictions: less spatial variation in upper than lower thermal limits ...
Extreme colour variation in the larvae of the executioner clownfrog, Dendropsophus carnifex (Anura: Hylidae), living in nearby ponds of different light exposure and duration

Merino Viteri, Andrés Ricardo (2019-07)

Here, we describe the extreme plasticity in colour variation in the tadpole of the executioner clownfrog, Dendropsophus carnifex (Anura: Hylidae), found across nearby ponds in Mindo (Ecuador). Tadpole coloration was compared ...
Gaussian mixture model classification of frogs

Nicolalde Rodríguez, Damián Aníbal (2018-04)

This Work Deals With Automatic Call-Independent Frog Species Identification. An Algorithm Is Designed To Process Field Recordings And Perform Automatic Identification Of 10 Species Of Anurans Inhabiting The Yasuní National ...
Infection dynamics of batrachochytrium dendrobatidis in two frog species inhabiting Quito's Metropolitan Guangüiltagua Park, Ecuador

Merino Viteri, Andrés Ricardo (2021)

Batrachochytrium dendrobatidis (Bd) infection is one of the principal causes of amphibian declines worldwide. The presence of Bd has been determined in Gastrotheca riobambae tadpoles that inhabit ponds in Quito's Metropolitan ...
Insights from integrative systematics reveal cryptic diversity in pristimantis frogs (anura: craugastoridae) from the upper amazon basin

Ron Melo, Santiago Rafael (2015-11)

Pluralistic approaches to taxonomy facilitate a more complete appraisal of biodiversity, especially the diversification of cryptic species. Although species delimitation has traditionally been based primarily on morphological ...
Microbiological and cytological characterization of coelomic fluid from three captive endangered amphibian Gastrotheca species with edema syndrome: preliminary analysis

Merino Viteri, Andrés Ricardo (2019-12)

Objective: Edema syndrome is highly prevalent but under researched in captive frogs around the world. The objective of the present study was to characterize at a basic microbiological and cytological level of the bacteria ...
Molecular modeling of four Dermaseptin-related peptides of the gliding tree frog Agalychnis spurrelli

Meneses Olmedo, Lorena Maribel; Pilaquinga Flores, María Fernanda; Rivera Iñiguez, Miryan Rosita (2019-08)

In this research, we present a preliminary computational study of four Dermaseptin-related peptides from the skin exudate of the gliding tree frog Agalychnis spurrelli. Experimentally, the amino acid sequence of these ...

Browsing Artículos en revistas científicas indexadas (Journals) by Subject "Ranas"

Browsing Artículos en revistas científicas indexadas (Journals) by Subject "Ranas"

Search DSpace

Browse

All of DSpace

This Collection

My Account