Temperature and oxygen are recognised as the main drivers of altitudinal limits of species distributions. However, the two factors are linked, and both decrease with altitude, why their effects are difficult to disentangle. This ...

Following examination of recently collected and older specimens of Riama from southern Ecuador, we report morphological variation in R. vespertina and modify the species diagnosis and description accordingly; furthermore, ...

Based on morphological and molecular evidence, herein is reported the discovery of a new species of Pholidobolus from the Andes of northwestern Peru. The new species is known from the montane forests of Cajamarca and ...

Background: Intraspecific functional variability (IFV) along altitudinal gradients is a powerful proxy to infer the responses of plants to abrupt environmental changes. We envisage that IFV shows distinctive patterns in ...

The Rhinella margaritifera species group consists of 17 species of toads distributed in tropical and subtropical South America and eastern Central America. The identity of some of its species is poorly understood and there ...

The Phyllomedusa perinesos group is composed of four species that inhabit cloud forests in the eastern Andean slopes. We estimated the phylogenetic relationships among them and their closest relatives using mitochondrial ...

Describimos una especie nueva de Pristimantis verde de la ladera occidental de los Andes de Ecuador en el Distrito Metropolitano de Quito (DMQ). La especie nueva se distingue por su coloración dorsal verde e iris con tres ...