Background Taxonomy is the biological discipline that identifies, describes, classifies and
names extant and extinct species and other taxa. Nowadays, species taxonomy is …

Approximately 20 years ago, Avise and colleagues proposed the integration of
phylogenetics and population genetics for investigating the connection between micro-and …

Species are fundamental units in biological research and can be defined on the basis of
various operational criteria. There has been growing use of molecular approaches for …

Within uncharacterized groups, DNA barcodes, short DNA sequences that are present in a
wide range of species, can be used to assign organisms into species. We propose an …

Maps of species' distributions or habitat suitability are required for many aspects of
environmental research, resource management and conservation planning. These include …

DNA barcodes, like traditional sources of taxonomic information, are potentially powerful
heuristics in the identification of described species but require mindful analytical …

The infraorder Mygalomorphae is one of the three main lineages of spiders comprising over
3000 nominal species. This ancient group has a worldwide distribution that includes among …

The evolutionary diversification of spiders is attributed to spectacular innovations in silk.
Spiders are unique in synthesizing many different kinds of silk, and using silk for a variety of …

Species are a fundamental unit for biological studies, yet no uniform guidelines exist for
determining species limits in an objective manner. Given the large number of species …

Inventory of the caterpillars, their food plants and parasitoids began in 1978 for today's Area
de Conservacion Guanacaste (ACG), in northwestern Costa Rica. This complex mosaic of …