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Forest stability during the early and late Holocene in the igapó floodplains of the Rio Negro, northwestern Brazil

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dc.contributor.author Rodriguez-Zorro, Paula A.
dc.contributor.author Turcq, Bruno
dc.contributor.author Cordeiro, Renato C.
dc.contributor.author Moreira, Luciane S.
dc.contributor.author Costa, Renata L.
dc.contributor.author McMichael, Crystal H.
dc.contributor.author Behling, Hermann
dc.date.accessioned 2018-12-01T00:04:14Z
dc.date.available 2018-12-01T00:04:14Z
dc.date.issued 2018
dc.identifier.uri https://hdl.handle.net/20.500.12866/4237
dc.description.abstract Located at the northwestern part of the Amazon basin, Rio Negro is the largest black-water river in the world and is one of the poorest studied regions of the Amazon lowlands. In the middle-upper part of the Rio Negro were retrieved sediment cores form Lake Acarabixi, which were analyzed using pollen, spores, charcoal, and geochemistry. The aim of this study was to detect the influences from humans and river dynamics on the vegetation history in the region. Two main periods of vegetation and river dynamics were detected. From 10,840 to 8240 cal yr BP, the river had a direct influence into the lake. The lake had a regional input of charcoal particles, which reflected the effect of the dry Holocene period in the basin. Furthermore, highland taxa such as Hedyosmum and Myrsine were found at that time along with igapo forest species that are characteristic to tolerate extended flooding like Eschweilera, Macrolobium, Myrtaceae, Swartzia, and Astrocaryum. During the late Holocene (1600 to 650 cal yr BP), more lacustrine phases were observed. There were no drastic changes in vegetation but the presence of pioneer species like Vismia and Cecropia, along with the signal of fires, which pointed to human disturbances. en_US
dc.language.iso eng
dc.publisher Cambridge University Press
dc.relation.ispartofseries Quaternary Research
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject Amazon en_US
dc.subject Amazon Basin en_US
dc.subject Astrocaryum en_US
dc.subject Black water en_US
dc.subject Black-water river en_US
dc.subject Brazil en_US
dc.subject Cecropia en_US
dc.subject Charcoal en_US
dc.subject Convergence of numerical methods en_US
dc.subject Eschweilera en_US
dc.subject Fire en_US
dc.subject Fires en_US
dc.subject Floods en_US
dc.subject forest fire en_US
dc.subject Forest stability en_US
dc.subject Forestry en_US
dc.subject Hedyosmum en_US
dc.subject Holocene en_US
dc.subject Holocenes en_US
dc.subject human activity en_US
dc.subject Human disturbances en_US
dc.subject Igapo forest en_US
dc.subject Igapó forest en_US
dc.subject Lakes en_US
dc.subject Macrolobium en_US
dc.subject Myrsine en_US
dc.subject Myrtaceae en_US
dc.subject paleoecology en_US
dc.subject paleoenvironment en_US
dc.subject Pioneer species en_US
dc.subject Rio Negro [South America] en_US
dc.subject Rivers en_US
dc.subject Stability en_US
dc.subject Swartzia en_US
dc.subject taxonomy en_US
dc.subject Vegetation en_US
dc.subject vegetation history en_US
dc.subject Vegetation history en_US
dc.subject Vismia en_US
dc.subject Water resources en_US
dc.title Forest stability during the early and late Holocene in the igapó floodplains of the Rio Negro, northwestern Brazil en_US
dc.type info:eu-repo/semantics/article
dc.identifier.doi https://doi.org/10.1017/qua.2017.99
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#1.05.03
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#1.05.08
dc.relation.issn 1096-0287

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