Envíos recientes
The natural drying of in-shell Brazil nuts carried out by the extractivists is not effective in reducing contamination by aflatoxin-producing fungi. Thus the use of an artificial heater could prove to be a favourable method to bring about a rapid reduction in the moisture cont...
A importância da utilização de sinergistas está relacionada à minimização da quantidade de inseticida químico necessária para o controle de insetos, podendo contribuir com a diminuição da contaminação ambiental e preservação de insetos benéficos. Assim, objetivou-se com este trabalho avaliar o&#x...
The Amazon holds the largest tropical rain forest formation in the world but this natural ecosystem has been altered by both anthropogenic and natural disturbances since the 1970s (Davidson et al., 2012). The Brazilian Amazon experienced the highest annual tropical deforestation rates u...
Among a variety of digital classification methods based on remote sensing images, the Maximum Likelihood (ML) is widely used in environmental studies, mainly for land cover and vegetation analysis. This study aimed to evaluate the effectiveness of supervised classification by ML technique&#x...
Understanding ecological variations in tropical forests is essential for defining conservation and management strategies. Changes in the composition and structure of forests, in relation to altitude, have been investigated on many tropical slopes. Although the degradation of its natural habitat c...
Among the logging methods, the Exploration of Reduced Impact (ERI) is the one that brings most financial benefits to producers and to the environment due to the use of macro and micro forest planning techniques. The limitation of this method is the systematic techniques to...
Structural changes on forest canopy produced by selective logging can be identified through satellite images, which shows the location and extent of these areas. The aim of this study was to analyze the detection of logging infrastructure using Landsat images and LiDAR data and...
Lidar data has been largely used to produce estimative on biomass and timber stocks in tropical forests. A major problem is the lidar flights costs, and the exhaustive and expensive ground plot data acquisition necessary to calibrate lidar data metrics. The use of ground infor...
Monitoring forest operations on logged areas is essential to identify the impacts caused to the residual. Light Detection and Ranging (LiDAR) has proven an effective tool to the quantification of the structural parameters and biomass loss on tropical forests. The objective of this ...
A ordem Hymenoptera é a segunda mais abundante da Classe Insecta e abriga muitas espécies de parasitoides, os quais desempenham papel importante no controle de insetos pragas. Vespas da família Chalcididae possuem características peculiares, como pernas posteriores muito mais desenvolvidas que&#x...