Marisol Toledo

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The vast extent of the Amazon Basin has historically restricted the study of its tree communities to the local and regional scales. Here, we provide empirical data on the commonness, rarity, and richness of lowland tree species across the entire Amazon Basin and Guiana Shield (Amazonia), collected in 1170 tree plots in all major forest types. Extrapolations(More)
PAPER Markedly divergent estimates of Amazon forest carbon density from ground plots and satellites Edward T. A. Mitchard*, Ted R. Feldpausch, Roel J. W. Brienen, Gabriela Lopez-Gonzalez, Abel Monteagudo, Timothy R. Baker, Simon L. Lewis, Jon Lloyd, Carlos A. Quesada, Manuel Gloor, Hans ter Steege, Patrick Meir, Esteban Alvarez, Alejandro Araujo-Murakami,(More)
The Amazon rain forest sustains the world's highest tree diversity, but it remains unclear why some clades of trees are hyperdiverse, whereas others are not. Using dated phylogenies, estimates of current species richness and trait and demographic data from a large network of forest plots, we show that fast demographic traits--short turnover times--are(More)
Estimates of extinction risk for Amazonian plant and animal species are rare and not often incorporated into land-use policy and conservation planning. We overlay spatial distribution models with historical and projected deforestation to show that at least 36% and up to 57% of all Amazonian tree species are likely to qualify as globally threatened under(More)
While Amazonian forests are extraordinarily diverse, the abundance of trees is skewed strongly towards relatively few 'hyperdominant' species. In addition to their diversity, Amazonian trees are a key component of the global carbon cycle, assimilating and storing more carbon than any other ecosystem on Earth. Here we ask, using a unique data set of 530(More)
Land-use change occurs nowhere more rapidly than in the tropics, where the imbalance between deforestation and forest regrowth has large consequences for the global carbon cycle. However, considerable uncertainty remains about the rate of biomass recovery in secondary forests, and how these rates are influenced by climate, landscape, and prior land use.(More)
RESEARCH Phylogenetic diversity of Amazonian tree communities Eur ıdice N. Honorio Coronado*, Kyle G. Dexter, R. Toby Pennington, J erôme Chave, Simon L. Lewis, Miguel N. Alexiades, Esteban Alvarez, Atila Alves de Oliveira, Iêda L. Amaral, Alejandro Araujo-Murakami, Eric J. M. M. Arets, Gerardo A. Aymard, Christopher Baraloto, Damien Bonal, Roel Brienen,(More)
REPORT The Tropical managed Forests Observatory: a research network addressing the future of tropical logged forests Plinio Sist, Ervan Rutishauser, Marielos Pe~ na-Claros, Alexander Shenkin, Bruno H erault, Lilian Blanc, Christopher Baraloto, Fid ele Baya, Fabrice Benedet, Katia Emidio da Silva, Laurent Descroix, Joice Nunes Ferreira, Sylvie(More)
A seasonal period of water deficit characterizes tropical dry forests (TDFs). There, sympatric tree species exhibit a diversity of growth rates, functional traits, and responses to drought, suggesting that each species may possess different strategies to grow under different conditions of water availability. The evaluation of the long-term growth responses(More)
Understanding the processes that determine above-ground biomass (AGB) in Amazonian forests is important for predicting the sensitivity of these ecosystems to environmental change and for designing and evaluating dynamic global vegetation models (DGVMs). AGB is determined by inputs from woody productivity [woody net primary productivity (NPP)] and the rate(More)