Chronology of terra firme formation in amazonian lowlands reveals a dynamic quaternary landscape
F. N. Pupim, A. O. Sawakuchi, R. P. Almeida, C. C. Ribas, A. K. Kern, G. A. Hartmann, C. M. Chiessi, L. N. Tamura, T. D. Mineli, J. F. Savian, C. H. Grohmann, D. J. Bertassoli Jr., A. G. Stern, F. W. Cruz, J. Cracraft
ARTIGO
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Agradecimentos: We acknowledge the comments and suggestions of two anonymous reviewers, and the editorial work of J.S. Carrion. This research had the main financial support of the project “Dimensions US-BIOTA-Sao Paulo: Assembly and evolution of the Amazonian biota and its environment: an integrated...
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Agradecimentos: We acknowledge the comments and suggestions of two anonymous reviewers, and the editorial work of J.S. Carrion. This research had the main financial support of the project “Dimensions US-BIOTA-Sao Paulo: Assembly and evolution of the Amazonian biota and its environment: an integrated approach”, a collaborative Dimensions of Biodiversity BIOTA grant supported by grant#2012/50260-6, São Paulo Research Foundation (FAPESP, Brazil), National Science Foundation (NSF, United States) and NASA (United States) 1241066 to JC. Support was also obtained from the FAPESP grant#2016/02656-1 (AOS) and the USAID-PEER Cycle 5 project History and diversification of floodplain forest bird communities in Amazonia: towards an integrated conservation plan" (CCR and JC). FNP was supported for a postdoctoral fellowship FAPESP grant#2014/23334-4 and grant#2016/09293-9 and early-career research grant from British Society for Geomorphology (United Kingdon). AKK was supported for a postdoctoral fellowship FAPESP grant#2014/05582-0 and grant#2015/18314-7. DJB is supported by FAPESP grant#16/11141-2. FNP, AOS, CMC, JFS and CCR are supported by National Council for Scientific and Technological Development (CNPq, Brazil) grants #302411/2018-6, #3009223/2014-8, #302607/2016-1, #304022/2018-7 and #308927/2016-8, respectively. GH thanks CAPES (Brazil) grant #AUXPE 2043/2014 and CNPq grants #454609/2014-0 and #306527/2017-0 for financial support. JFS thanks CNPq grants #201508/2009- 5; #427280/2018-4 and FAPERGS (Brazil) grant #16/2551-0000213-4. CMC thanks FAPESP grant #2012/17517-3 and CAPES grant #564/2015 for financial support. The authors would like to thank the Paleomagnetism Laboratory of the University of São Paulo (USPMag), Brazil
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In the Amazonian lowlands, the shift from a large wetland dominated by flooded forests (Varzea) to the modern incised valleys bounded by extensive areas of non-flooded forests (Terra Firme) is considered a key driver of the Amazonian mega-biodiversity. Dating the sedimentary beds covered by Terra...
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In the Amazonian lowlands, the shift from a large wetland dominated by flooded forests (Varzea) to the modern incised valleys bounded by extensive areas of non-flooded forests (Terra Firme) is considered a key driver of the Amazonian mega-biodiversity. Dating the sedimentary beds covered by Terra Firme forest is crucial to constrain the timing of such landscape change. Here we determined the formation ages of widespread regions of Terra Firme substrates in central Amazonian lowlands combining optically stimulated luminescence (OSL) dating, magnetostratigraphy and palinostratigraphy. Our data suggest a very dynamic fluvial system leading to a recent expansion of Terra Firme forests and retraction of Varzea forests during the late Pleistocene. The shift from an extensively flooded to non-flooded surface resulted from river incision around 45-35 ka, which potentially influenced the distribution of taxa by expanding available habitat, creating new barriers to dispersal, or changing the permeability of previous barriers. Transitions between flooded and non-flooded landscapes may have driven diversification and caused changes to species distributions, contributing to the high species diversity and biogeographic patterns currently found in the region. The late Quaternary evolution of Terra Firme substrates reveals that physical landscape changes play a major role in shaping biotic habitats even in the 10(4)-10(5) years time-scales
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FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP
2012/50260-6; 2016/02656-1; 2014/23334-4; 2016/09293-9; 2014/05582-0; 2015/18314-7; 16/11141-2; 2012/17517-3
COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPES
AUXPE 2043/2014; 564/2015
CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ
302411/2018-6; 3009223/2014-8; 302607/2016-1; 304022/2018-7; 308927/2016-8; 454609/2014-0; 306527/2017-0; 201508/2009-5; 427280/2018-4
FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DO RIO GRANDE DO SUL - FAPERGS
16/2551-0000213-4
Fechado
Chronology of terra firme formation in amazonian lowlands reveals a dynamic quaternary landscape
F. N. Pupim, A. O. Sawakuchi, R. P. Almeida, C. C. Ribas, A. K. Kern, G. A. Hartmann, C. M. Chiessi, L. N. Tamura, T. D. Mineli, J. F. Savian, C. H. Grohmann, D. J. Bertassoli Jr., A. G. Stern, F. W. Cruz, J. Cracraft
Chronology of terra firme formation in amazonian lowlands reveals a dynamic quaternary landscape
F. N. Pupim, A. O. Sawakuchi, R. P. Almeida, C. C. Ribas, A. K. Kern, G. A. Hartmann, C. M. Chiessi, L. N. Tamura, T. D. Mineli, J. F. Savian, C. H. Grohmann, D. J. Bertassoli Jr., A. G. Stern, F. W. Cruz, J. Cracraft
Fontes
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Quaternary science reviews: the international multidisciplinary research and review journal Vol. 210 (Apr., 2019), p. 154-163 |