Boletim do CIMC | Edição 3
O Comitê Indígena de Mudanças Climáticas (CIMC) tem a responsabilidade de acompanhar os debates nacionais e internacionais sobre o clima e divulga estudos realizados pelos povos indígenas sobre mudanças climáticas com o intuito de valorizar os conhecimentos...
Opposite latitudinal patterns for bird and arthropod predation revealed in experiments with differently colored artificial prey
The strength of biotic interactions is generally thought to increase toward the equator, but support for this hypothesis is contradictory. We explored whether predator attacks on artificial prey of eight different colors vary among climates and whether this...
Solving Brazil’s land use puzzle: Increasing production and slowing Amazon deforestation
Brazil has become an agricultural powerhouse, producing roughly 30 % of the world’s soy and 15 % of its beef by 2013 – yet historically much of that growth has come at the expense of its native ecosystems. Since 1985, pastures and croplands have replaced nearly 65...
Solving Brazil's land use puzzle: Increasing production and slowing Amazon deforestation
Brazil has become an agricultural powerhouse, producing roughly 30 % of the world’s soy and 15 % of its beef by 2013 – yet historically much of that growth has come at the expense of its native ecosystems. Since 1985, pastures and croplands have replaced nearly 65...
Biological Nitrogen Fixation Does Not Replace Nitrogen Losses After Forest Fires in the Southeastern Amazon
Tropical forest fires have become more common due to interactions between deforestation, land clearing, and drought. Forest recovery following fires may be limited by nitrogen. Biological nitrogen fixation (BNF) is the main pathway for new nitrogen (N) to enter...
Droughts Amplify Differences Between the Energy Balance Components of Amazon Forests and Croplands
Droughts can exert a strong influence on the regional energy balance of the Amazon and Cerrado, as can the replacement of native vegetation by croplands. What remains unclear is how these two forcing factors interact and whether land cover changes fundamentally...
Thinner bark increases sensitivity of wetter Amazonian tropical forests to fire
Understory fires represent an accelerating threat to Amazonian tropical forests and can, during drought, affect larger areas than deforestation itself. These fires kill trees at rates varying from < 10 to c. 90% depending on fire intensity, forest disturbance...