Lucas Barrientos

Pontifical Xavierian University · Department of Biology

En Colombia están registradas más de 400 especies endémicas de anfibios (Frost, 2023) y más de 320 especies endémicas de polillas satúrnidas (Instituto Humboldt, 2015; Jiménez Bolívar et al. 2021; Comoglio & Brechlin 2023). Los Parques Nacionales Naturales (PNN) contienen más del 38 % de los anfibios (154 especies) y del 35 % (112 especies) de las...

Dendropsophus molitor is a hylid frog endemic to the Eastern Cordillera of the Colombian Andes, where it exhibits extensive geographic variation in size and colour pattern. Previous multivariate analyses of acoustic and genetic data suggested that northern and southern populations of D. molitor were distinct lineages, and consequently, the northern...

The genus Anadia (family Gymnophthalmidae) consists of 19 species. It has remained almost taxonomically stable for decades, scarcely observed, in addition to being one of the less sampled gymnophthalmid genera with respect to molecular phylogenies. New Anadia species are discovered at a relatively low pace, and few specimens are found in the field,...

The complex topography of the species-rich northern Andes creates heterogeneous environmental landscapes that are hypothesized to have promoted population fragmentation and diversification by processes such as vicariance or local adaptation. Previous phylogenetic work on the palm rocket frog (Anura: Aromobatidae: Rheobates spp.), endemic to midelev...

Terraranae is a large clade of New World direct-developing frogs that includes 3–5 families and >1,100 described species (∼15% of all named frog species). The relationships among major groups of terraranan frogs have been highly contentious, including conflicts among four recent phylogenomic studies utilizing 95, 220, 389, and 2,214 nuclear loci, r...

The complex topography of the species-rich northern Andes creates heterogeneous environmental landscapes that are hypothesized to have promoted population fragmentation and diversification by vicariance, gradients and/or the adaptation of species. Previous phylogenetic work on the Palm Rocket Frog (Anura: Aromobatidae: Rheobates spp.), endemic to m...

Background: Terraranae is a large clade of New World direct-developing frogs that includes 3–5 families and >1,000 described species, encompassing ~15% of all named frog species. The relationships among major groups of terraranan frogs have been highly contentious, including conflicts among three recent phylogenomic studies utilizing 95, 389, and 2...

The frogs of the genus Pristimantis are recognized for their characteristic reproductive mode and for their incredible diversity of species, becoming the genus with the highest number of species within tetrapod vertebrates. We describe here a new species of Pristimantis from the northwestern Andes of Colombia. The species was found between 2000-250...

The frogs of the genus Pristimantis are recognized for their characteristic reproductive mode and for their incredible diversity of species, becoming the genus with the highest number of species within tetrapod vertebrates. We describe here a new species of Pristimantis from the northwestern Andes of Colombia. The species was found between 2000- 25...

Part of the Colombian herpetology society (ACH) initiative to catalog diversity of amphibians and reptiles in the country. The catalog is the "Catálogo de anfibios y reptiles de Colombia (2357-6324)"

We describe a striking new species of the genus Sachatamia from the eastern slope of Colombia's Central Andes. The new species differs from the most closely related species (i.e., Sachatamia albomaculata and S. punctulata) by its green dorsal coloration in life with yellow and blue dots, and unique semicirclular, white blotch in the dorsal portion...

Part of the Colombian herpetology society (ACH) initiative to catalog diversity of amphibians and reptiles in the country. The catalog is the "Catálogo de anfibios y reptiles de Colombia (2357-6324)"

Resumen The role of animals as seed dispersal vectors is widely acknowledged, including dispersal by reptiles (saurochory). Most reports of saurochory have been via endozoochory, through feces deposition. We present the first evidence of epizoochory in Iguanas from a dry forest in Colombia via seeds attached to the snout. Our results show that see...

Species distributed across vast continental areas and across major biomes provide unique model systems for studies of biotic diversification, yet also constitute daunting financial, logistic and political challenges for data collection across such regions. The tree frog Dendropsophus minutus (Anura: Hylidae) is a nominal species, continentally dist...

The leaf or monkey frogs of the hylid subfamily Phyllomedusinae are a unique group of charismatic anurans. We present a molecular phylogenetic analysis that includes 45 of the 60 species of phyllomedusines using up to 12 genes and intervening tRNAs. The aims were to gain a better understanding of the phylogenetic position of Phrynomedusa, test the...