The igapó of the Negro River in central Amazonia: Linking late-successional inundation forest with fluvial geomorphology

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dc.contributor.authorMontero, Juan Carlos
dc.contributor.authorLatrubesse, Edgardo M. [UNESP]
dc.contributor.institutionUniversity of Freiburg
dc.contributor.institutionUniversity of Texas at Austin
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:30:47Z
dc.date.available2014-05-27T11:30:47Z
dc.date.issued2013-10-01
dc.description.abstractDespite important progress on Amazonian floodplain research, the flooded forest of the Negro River igapó has been little investigated. In particular, no study has previously focused the linkage between fluvial geomorphology and the floristic variation across the course of the river. In this paper we describe and interpret relations between igapó forest, fluvial geomorphology and the spatial evolution of the igapó forest through the Holocene. Therefore, we investigate the effect of geomorphological units of the floodplain and channel patterns on tree diversity, composition and structural parameters of the late-successional igapó forest. Our results show that sites sharing almost identical flooding regime, exhibit variable tree assemblages, species richness and structural parameters such as basal area, tree density and tree heights, indicating a trend in which the geomorphologic styles seem to partially control the organization of igapó's tree communities. This can be also explained by the high variability of well-developed geomorphologic units in short distances and concentrated in small areas. In this dynamic the inputs from the species pool of tributary rivers play a crucial role, but also the depositional and erosional processes associated with the evolution of the floodplain during the Holocene may control floristic and structural components of the igapó forests. These results suggest that a comprehensive approach integrating floristic and geomorphologic methods is needed to understand the distribution of the complex vegetation patterns in complex floodplains such as the igapó of the Negro River. This combination of approaches may introduce a better comprehension of the temporal and spatial evolutionary analysis and a logic rationale to understand the vegetation distribution and variability in function of major landforms, soil distributions and hydrology. Thus, by integrating the past into macroecological analyses will sharpen our understanding of the underlying forces for contemporary floristic patterns along the inundation forests of the Negro River. © 2013 Elsevier Ltd.en
dc.description.affiliationFaculty of Environment and Natural Resources University of Freiburg, Tennenbacherstrasse 4, 79106 Freiburg
dc.description.affiliationUniversity of Texas at Austin Department of Geography and the Environment, 305W, 23rd St, A3100, Austin, TX 78712
dc.description.affiliationUniversidade Estadual Paulista UNESP Departamento de Geologia Aplicada, Avenida 24A, 1515, Rio Claro, SP 13.506-900
dc.description.affiliationUnespUniversidade Estadual Paulista UNESP Departamento de Geologia Aplicada, Avenida 24A, 1515, Rio Claro, SP 13.506-900
dc.format.extent137-149
dc.identifierhttp://dx.doi.org/10.1016/j.jsames.2013.05.009
dc.identifier.citationJournal of South American Earth Sciences, v. 46, p. 137-149.
dc.identifier.doi10.1016/j.jsames.2013.05.009
dc.identifier.issn0895-9811
dc.identifier.scopus2-s2.0-84882849997
dc.identifier.urihttp://hdl.handle.net/11449/76720
dc.identifier.wosWOS:000324455500012
dc.language.isoeng
dc.relation.ispartofJournal of South American Earth Sciences
dc.relation.ispartofjcr1.639
dc.relation.ispartofsjr0,829
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectAmazonian floodplain forests
dc.subjectFloristic variation
dc.subjectFluvial-geomorphology
dc.subjectHolocene
dc.subjectIgapó
dc.subjectNegro River
dc.subjectbasal area
dc.subjectdeposition
dc.subjecterosion
dc.subjectflooding
dc.subjectfloodplain forest
dc.subjectfloristics
dc.subjectfluvial geomorphology
dc.subjectmacroecology
dc.subjectriver channel
dc.subjectvegetation
dc.subjectAmazonia
dc.subjectRio Negro [South America]
dc.titleThe igapó of the Negro River in central Amazonia: Linking late-successional inundation forest with fluvial geomorphologyen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Geociências e Ciências Exatas, Rio Claropt

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Artigos - Geologia Aplicada - IGCE