AmphibiaWeb provides information on amphibian declines, natural history, conservation, and taxonomy.

Species of the Week:
Dendropsophus minutus

Amphibian News
An emerging biodiversity pattern is that of single amphibian species that are widespread across a continent are found to be complexes of several cryptic species. These are species that are difficult to distinguish without detailed analysis of traits such as mating calls in frogs or DNA sequences. An extreme example is the species Dendropsophus minutus, which extends over several ecoregions, including the wet forests of Amazonia, the coastal Atlantic forests of southeastern Brazil, to dry scrub forest of the Caatinga. Depending on the region, the species occurs from sea level to 2000 m asl. Using mtDNA sequences, Gehara and 29 co-authors (2014) identified 43 lineages within the single "species," many of which may represent cryptic species. The distribution of one lineage covers more than 1 million km2. This broad-brush study is an important first step in documenting taxonomic and biogeographic patterns of Neotropical biodiversity that beg for deeper analysis.

Current number of amphibian species: 7,361 (Dec 19, 2014) Newly added species