Structural Hurdles to Large-Scale Forest Restoration in the Brazilian Amazon

Remote Monitoring for Forest Management in the Brazilian Amazon

Screening of antibacterial extracts from plants native to the Brazilian Amazon Rain Forest and Atlantic Forest.

More than 20% of the world's biodiversity is located in Brazilian forests and only a few plant extracts have been evaluated for potential antibacterial activity. In the present study, 705 organic and aqueous extracts of plants obtained from different Amazon Rain Forest and Atlantic Forest plants were screened for antibacterial activity at 100 microg/ml, using a microdilution broth assay against...

Scale-dependent patterns of deforestation in the Brazilian Amazon

Tropical forests of the Amazon Basin are being rapidly converted to agricultural land uses and fallow land, resulting in accelerating rates of forest loss in one of the world's most biodiverse ecoregions. This process has been extensively described and modelled, but as yet there has been no formal test of how the spatial patterns of deforested and fragmented areas change with the spatial scale ...

Remote sensing image information mining applied to burnt forest detection in the Brazilian Amazon

Fire processes contribute to carbon dioxide emissions, main gas responsible for the Greenhouse Effect. Considering the importance of fire processes management for the detection of burnt areas in the Brazilian Amazon, the Linear Spectral Mixture Model is one of the main methods available. Nonetheless, some manual processes are required before its application, such as identifying adequate images ...

Large-Scale Wind Disturbances Promote Tree Diversity in a Central Amazon Forest

Canopy gaps created by wind-throw events, or blowdowns, create a complex mosaic of forest patches varying in disturbance intensity and recovery in the Central Amazon. Using field and remote sensing data, we investigated the short-term (four-year) effects of large (>2000 m(2)) blowdown gaps created during a single storm event in January 2005 near Manaus, Brazil, to study (i) how forest structure...