O estado atual das mudanças climáticas no Brasil com ênfase na Amazônia

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Manejo e Recuperação de Mata Ciliar em Regiões Florestais da Amazônia

O objetivo dessa publicação é a defesa do bem social comum na Amazônia, conciliando o desenvolvimento socioeconômico com a conservação da natureza, partindo do pressuposto de que grande parte da degradação ambiental advinda da expansão da agricultura e pecuária na região poderia ser evitada ou revertida com práticas baratas e fáceis de implementar.

Effects of partial throughfall exclusion on the phenology of Coussarea racemosa (Rubiaceae) in an east-central Amazon rainforest

Severe droughts may alter the reproductive phenology of tropical tree species, but our understanding of these effects has been hampered by confounded variation in drought, light and other factors during natural drought events. We used a large-scale experimental reduction of throughfall in an easterncentral Amazon forest to study the phenological response to drought of an abundant subcanopy tree, Coussarea racemosa. We hypothesized that drought would alter the production and the timing of reproduction, as well as the number of viable fruits.

A Risky Forest Policy in the Amazon?

In their Policy Forum "National forests in the Amazon” (30 Aug., p. 1478), A. Veríssimo et al. seem assured that a new system of national forests will solve the problems of uncontrolled forest exploitation in the Brazilian Amazon. Unfortunately, we are far less...