Consulta: creatorFacets:"Santos,Marcos Pérsio Dantas"
Registros recuperados: 2
Data/hora: 01/06/2024 13:57:51

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

A gap analysis of ornithological research in the brazilian state of Roraima
Provedor de dados: 49
Autores: Santos,Marcos Pérsio Dantas.
This study analyzes the ornithological data available for the Brazilian state of Roraima, focusing on sampling gaps. All ornithological data collected in Roraima up to the present were collated with the aim of answering the following questions: (a) which sites have been well sampled? (b) Are there are any geographic gaps? (c) What is the current extent of the scientific knowledge of avian diversity in Roraima? (d); Which regions and vegetation types have been well-sampled, and which should be prioritized for future surveys? Ornithological data were obtained from a total of 82 localities, including the Maracá Ecological Station (442 species), Viruá National Park (420 species), Colônia do Apiaú (320 species), Mucajaí (267 species), and Pacaráima (212...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazonia; Birds; Conservation; Rio branco; Sampling gaps.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000200008