Rubi N. Meza-Lázaro

TL;DR: Global extinction projections were validated with local extinctions observed from 1975 to 2009 for regional biotas on four other continents, suggesting that lizards have already crossed a threshold for extinctions caused by climate change.

TL;DR: This work used ddRADseq data from all of the described and potentially undescribed taxa of Xenosaurus to investigate species limits, and reconstructed a well-resolved and generally well-supported phylogeny for this group of knob-scaled lizards.

TL;DR: The results reveal the presence of a fast-evolving secondary mitochondrial lineage of uncertain origin in the E. ruidum complex, and observed strong evidence for purifying selection in two haplotype-phased genes, which indicate the existence of two functional mitochondrial genomes coexisting within individuals instead of numts.

TL;DR: All of the previously recognized subspecies of H. undulatus were supported as distinct evolutionary lineages based on the molecular and morphological evidence and elevated all of these subspecies to species rank.

TL;DR: It is proposed that E. ruidum is actually composed of at least three species, two of which have a wide geographical distribution in the Neotropics, whereas the remaining one was restricted to localities situated near the Pacific coast in south-east Mexico.