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Amazon tree dominance across forest strata
Draper, Frederick C.; Costa, Flavia R. C.; Arellano, Gabriel; Phillips, Oliver L.; Duque, Alvaro; Macía, Manuel J.; ter Steege, Hans; Asner, Gregory P.Made available in DSpace on 2021-06-25T10:27:12Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); The forests of Amazonia are among the most biodiverse plant communities on Earth. Given the immediate threats posed by climate and land-use change, an improved understanding of how this extraordinary biodiversity is spatially organized...
Long-term thermal sensitivity of Earth’s tropical forests
Sullivan, Martin J. P.; Lewis, Simon L.; Affum-Baffoe, Kofi; Castilho, Carolina; Costa, Flávia; Sanchez, Aida Cuni; Ewango, Corneille E. N.The sensitivity of tropical forest carbon to climate is a key uncertainty in predicting global climate change. Although short-term drying and warming are known to affect forests, it is unknown if such effects translate into long-term responses. Here, we analyze 590 permanent plots measured across the tropics to derive the equilibrium climate controls on forest carbon. Maximum temperature is the most important p...
Competition influences tree growth, but not mortality, across environmental gra...
Rozendaal, Danaë M.A.; Phillips, Oliver L.; Lewis, Simon L.; Affum-Baffoe, Kofi; Alvarez, Esteban; Andrade, Ana C.S.; Aragao, L. E.O.C.Competition among trees is an important driver of community structure and dynamics in tropical forests. Neighboring trees may impact an individual tree’s growth rate and probability of mortality, but large-scale geographic and environmental variation in these competitive effects has yet to be evaluated across the tropical forest biome. We quantified effects of competition on tree-level basal area growth and mor...
Hyperdominance in Amazonian forest carbon cycling
Fauset, Sophie; Johnson, Michelle O.; Gloor, Manuel U.; Baker, Timothy R.; Monteagudo M, Abel; Brienen, Roel J.W.; Feldpausch, Ted R.While Amazonian forests are extraordinarily diverse, the abundance of trees is skewed strongly towards relatively few â € hyperdominantâ €™ 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 forest plots, if the functions of storing and produci...
Compositional response of Amazon forests to climate change
Esquivel-Muelbert, Adriane; Baker, Timothy R.; Dexter, Kyle Graham; Lewis, Simon L.; Brienen, Roel J.W.; Feldpausch, Ted R.; Lloyd, JonMost of the planet's diversity is concentrated in the tropics, which includes many regions undergoing rapid climate change. Yet, while climate-induced biodiversity changes are widely documented elsewhere, few studies have addressed this issue for lowland tropical ecosystems. Here we investigate whether the floristic and functional composition of intact lowland Amazonian forests have been changing by evaluating ...
Estudo eco-hidrológico da bacia hidrográfica Mariana, afluente do Rio Taxidermi...
Umetsu, Ricardo KeichiThis study aimed to describe the hydro-ecological aspects of Mariana Hydrographic Basin, tributary of the river Taxidermista, Alta Floresta, MT, Brazil. Therefore, studies were performed on the morphometry of the basin; land use; floristic, vegetation structure and correlation with the distribution of tree species and soils of the riparian forest; dynamics of runoff; water physical-chemical aspects; and socio-e...
Fertilidade do solo da área ciliar da sub-bacia hidrográfica Mariana, para fins...
Camargo, Mairo Fabio; Roque, Cassiano Garcia; Umetsu, Ricardo Keichi; Pierangeli, Maria Aparecida Pereira; Silva, Thiago Rodrigo Cardoso daO presente trabalho teve como objetivo realizar a caracterização química e granulométrica do solo da área ciliar da sub-bacia hidrográfica Mariana, localizada no extremo norte do Estado de Mato Grosso, sob as coordenadas geográficas 56º8’0’’W, 56º5’0’’W e 9º56’30’’S, 9º59’30’’S. Os atributos químicos e físicos avaliados foram: pH (CaCl2), MO, K + , P, Ca +2 , Mg +2 , H + , Al +3 , V%, m%, SB, CTC pH 7,0, CTC ef...