|
|
|
|
|
| Borges,Sérgio Henrique; Whittaker,Andrew; Almeida,Ricardo Afonso Machado de. |
| We inventoried the birds from Serra do Aracá region, state of Amazonas. The region encompasses a high diversity of vegetation types, including white sand forests and campinas, terra firme and flooded forests, montane forests and tepuis. We recorded 416 bird taxa in 69 families through captures with mist nets, tape recording of bird voices, and collection of voucher specimens. A large proportion of them (61%) were recorded in a single vegetation type. Qualitative estimates suggest that approximately 580 bird species occur in the region. The avifauna of the Aracá region has a mixed biogeographic composition, with species typical of both margins of the Rio Negro occurring sympatrically. Additionally, species whose distributions are restricted to three areas... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon biodiversity; Amazonas; Rio Branco; Rio Negro; Tepuis; White sand campinas. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000400006 |
| |
|
|
| Heck,Júlio X.; Hertz,Plinho F.; Ayub,Marco A.Z.. |
| In Brazil, a large amount of a fibrous residue is generated as result of soybean (Glycine max) protein production. This material, which is rich in hemicellulose and cellulose, can be used in solid state cultivations for the production of valuable metabolites and enzymes. In this work, we studied the bioconversion of this residue by bacteria strains isolated from water and soil collected in the Amazon region. Five strains among 87 isolated bacteria selected for their ability to produce either celullases or xylanases were cultivated on the aforementioned residue. From strain BL62, identified as Bacillus subtilis, it was obtained a preparation showing the highest specific cellulase activity, 1.08 UI/mg protein within 24 hours of growth. Concerning xylanase,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solid-State cultivation; Cellulase; Xylanase; Soybean residue; Amazon biodiversity. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000300005 |
| |
|
|
|
