| phylogeography of four frog species in forest fragments of northeastern brazil--a preliminary study. | i contrast mitochondrial dna genealogies based on 612 bp of the cytochrome b gene across four co-distributed species of frogs in northeastern brazil. they are hyla albomarginata, hyla branneri, proceratophrys boiei, and scinax nebulosus. samples were collected from the core or edge of six rainforest remnants in the states of pernambuco and alagoas. three fragments are located within the humid atlantic forest morphoclimatic domain (municipalities of cabo de santo agostinho, ibateguara, and jaquei ... | 2002 | 21680371 |
| identification of the taxonomic status of scinax nebulosus and scinax constrictus (scinaxinae, anura) based on molecular markers. | the validation of many anuran species is based on a strictly descriptive, morphological analysis of a small number of specimens with a limited geographic distribution. the scinax wagler, 1830 genus is a controversial group with many doubtful taxa and taxonomic uncertainties, due a high number of cryptic species. one example is the pair of species scinax constrictus and scinax nebulosus, which share a similar morphology. scinax constrictus is restricted to the brazilian cerrado savanna, while s. ... | 2020 | 33111926 |