In the last decade and a half, advances in genetic sequencing technologies have
revolutionized systematics, transforming the field from studying morphological characters or …

We present a phylogenetic analysis of spiders using a dataset of 932 spider species,
representing 115 families (only the family Synaphridae is unrepresented), 700 known …

Living sloths represent two distinct lineages of small-sized mammals that independently
evolved arboreality from terrestrial ancestors. The six extant species are the survivors of an …

The importance of morphology in the phylogenomic era has recently gained attention, but
relatively few studies have combined both types of information when inferring phylogenetic …

Studies of the biogeography of the West Indies are numerous but not all taxonomic groups
have received the same attention. Many of the contributions to this field have historically …

An updated and extensively revised checklist of the arthropods of Hispaniola (Dominican
Republic and Haiti) is presented 11 years after the publication of the original in 2008. It …

The field of systematics involves at least three major elements: biodiversity exploration
(inventory); taxonomic discovery and description (taxonomy); and the estimation of …

Aim In this study we present a molecular phylogenetic and phylogeographical analysis of
Peltophryne (Anura: Bufonidae), an endemic genus of Antillean toads, to investigate the …

Understanding the processes that have generated the latitudinal biodiversity gradient and
the continental differences in tropical biodiversity remains a major goal of evolutionary …

There has been a long controversy about what defines a species and how to delimitate them
which resulted in the existence of more than two dozen different species concepts. Recent …