Consulta: creatorFacets:"Rêgo,Péricles Sena do"
Registros recuperados: 2
Data/hora: 09/06/2024 15:47:52

New molecular evidence supports the species status of Kaempfer's Woodpecker (Aves, Picidae)
Provedor de dados: 74
Autores: Azevedo,Lorena de Sousa; Aleixo,Alexandre; Santos,Marcos Pérsio Dantas; Sampaio,Iracilda; Schneider,Horacio; Vallinoto,Marcelo; Rêgo,Péricles Sena do.
Kaempfer's Woodpecker (Celeus obrieni) is the only species of the genus Celeus endemic to Brazil. The description of this taxon as a subspecies of the Rufous-headed Woodpecker (Celeus spectabilis) was based on a single specimen. While C. obrieni and C. spectabilis are now considered separate species based on morphological and limited molecular evidence, no study has critically tested the reciprocal monophyly and degree of evolutionary independence between these taxa with several specimens. Herein, fragments of the mitochondrial and nuclear DNA of three recently-collected specimens of C. obrieni were analyzed to evaluate the degree of evolutionary differentiation of this taxon with respect to C. spectabilis. The results confirm the reciprocal monophyly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bamboo; Biogeography; Celeus obrieni; Celeus spectabilis; Taxonomy.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000200009

Identification and phylogenetic inferences on stocks of sharks affected by the fishing industry off the Northern coast of Brazil
Provedor de dados: 74
Autores: Rodrigues-Filho,Luis Fernando da Silva; Rocha,Tainá Carreira da; Rêgo,Péricles Sena do; Schneider,Horacio; Sampaio,Iracilda; Vallinoto,Marcelo.
The ongoing decline in abundance and diversity of shark stocks, primarily due to uncontrolled fishery exploitation, is a worldwide problem. An additional problem for the development of conservation and management programmes is the identification of species diversity within a given area, given the morphological similarities among shark species, and the typical disembarkation of processed carcasses which are almost impossible to differentiate. The main aim of the present study was to identify those shark species being exploited off northern Brazil, by using the 12S-16S molecular marker. For this, DNA sequences were obtained from 122 specimens collected on the docks and the fish market in Bragança, in the Brazilian state of Pará. We identified at least 11...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sharks; Molecular identification; Phylogenetic; MtDNA; Conservation.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000200031