8 documents found, page 1 of 1
Pervasive gaps in Amazonian ecological research
Carvalho, Raquel L.; Resende, Angelica F.; Barlow, Jos; França, Filipe M.; Moura, Mario R.; Maciel, Rafaella; Alves-Martins, Fernanda; Shutt, JackBiodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain underst...
Comparing contemporary and lifetime rates of carbon accumulation from secondary...
Elias, Fernando; Ferreira, Joice; Resende, Angélica F.; Berenguer, Erika; França, Filipe; Smith, Charlotte C.; Schwartz, Gustavo; Nascimento, Rodrigo O.Made available in DSpace on 2022-04-28T19:50:14Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-03-15; Secondary forests (SFs) growing on previously cleared land could be a low-cost climate change mitigation strategy due to their potential to sequester CO2. However, given widespread changes in climate and land-use in the Amazon in the past 20 years, it is not clear whether current rates of carbon uptake ...
Taking the pulse of Earth's tropical forests using networks of highly distribut...
Blundo, Cecilia; Carilla, Julieta; Grau, Ricardo; Malizia, Agustina; Malizia, Lucio; Osinaga-Acosta, Oriana; Bird, Michael; Bradford, MattMade available in DSpace on 2021-06-25T11:16:28Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01; Agence Nationale Des Parcs Nationaux; Centre for International Forestry Research; Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS); David and Lucile Packard Foundation; European Space Agency; Leverhulme Trust; Gordon and Betty Moore Foundation; Fundação de Amparo à Pesquisa ...
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...
Evolutionary heritage influences amazon tree ecology
Souza, Fernanda Coelho de; Dexter, Kyle Graham; Phillips, Oliver L.; Brienen, Roel J.W.; Chave, Jérôme; Galbraith, David R.; Lopez-Gonzalez, GabrielaLineages tend to retain ecological characteristics of their ancestors through time. However, for some traits, selection during evolutionary history may have also played a role in determining trait values. To address the relative importance of these processes requires large-scale quantification of traits and evolutionary relationships among species. The Amazonian tree flora comprises a high diversity of angiospe...
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 ...
Post-fire dynamics of the woody vegetation of a savanna forest (Cerradão) in th...
Reis, Simone Matias; Lenza, Eddie; Marimon, Beatriz Schwantes; Gomes, Letícia; Forsthofer, Mônica; Morandi, Paulo Sérgio; Marimon Júnior, Ben HurFire can change the species composition, diversity, and structure of savanna vegetation, thus altering growth and mortality rates. Such changes in the woody vegetation of burned savanna forest were evaluated over four years in comparison to unburned savanna forest. All woody plants with a diameter at breast height > 10 cm were measured in 100 permanent plots. Six months later, 38 of these plots were burned. Thr...
Resiliência de um cerradão submetido a perturbações intermediárias na transição...
Elias, Fernando; Marimon, Beatriz Schwantes; Gomes, Letícia; Forsthofer, Mônica; Abreu, Mariângela Fernandes; Reis, Simone Almeida; Lenza, EddieO objetivo do presente estudo foi testar a hipótese de que remanescentes de florestas, mesmo em pequenas unidades de conservação e sujeitos a perturbações intermediárias, são resilientes. Para isso, as distribuições de diâmetros e alturas da comunidade e das espécies mais abundantes de um cerradão (14°42’02,3”S e 52°21’02,6”W) foram analisadas e comparadas em intervalos de dois a três anos em um período de oito...