On the floristic identity of Amazonian vegetation types

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dc.creatorAry Teixeira de Oliveira Filho
dc.creatorKyle Graham Dexter
dc.creatorToby Pennington
dc.creatorMarcelo Fragomeni Simon
dc.creatorMarcelo Leandro Bueno
dc.creatorDanilo Rafael Mesquita Neves
dc.date.accessioned2023-06-16T20:58:23Z
dc.date.accessioned2025-09-09T00:10:38Z
dc.date.available2023-06-16T20:58:23Z
dc.date.issued2021
dc.identifier.doihttps://doi.org/10.1111/btp.12932
dc.identifier.issn1744-7429
dc.identifier.urihttps://hdl.handle.net/1843/55029
dc.languagepor
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofBiotropica
dc.rightsAcesso Restrito
dc.subjectFlorestas - Amazonia
dc.subjectÁrvores - Brasil
dc.subjectAreia Branca (RN)
dc.subject.otherCommunity composition
dc.subject.otherEdaphic conditions
dc.subject.otherEnvironmental gradients
dc.subject.otherEnvironmentally marginal habitats
dc.subject.otherOrdination analysis
dc.subject.otherTerra firme forests
dc.subject.otherTree species
dc.subject.otherWhite- sand forest
dc.titleOn the floristic identity of Amazonian vegetation types
dc.typeArtigo de periódico
local.citation.epage777
local.citation.issue3
local.citation.spage767
local.citation.volume53
local.description.resumoThe Amazon forest is far from uniform, containing different forest types and even savannas, but quantitative analyses of this variation are lacking. Here, we applied ordination analyses to test the floristic differentiation among Amazonian vegetation types using data for virtually all known tree species occurring in the Amazon (8224), distributed across 1584 sites. We also performed multiple regressions to assess the role of climate and substrate in shaping continental- scale patterns of community composition across Amazonia. We find that the traditional classification of Amazonian vegetation types is consistent with quantitative patterns of tree species composition. High elevation and the extremes of substrate- related factors underpin the floristic segregation of environmentally “marginal” vegetation types and terra firme forests with climatic factors being relatively unimportant. These patterns hold at continental scales, with sites of similar vegetation types showing higher similarity between them regardless of geographic distance, which contrasts with the idea of large- scale variation among geographic regions (e.g., between the Guiana Shield and southwestern Amazon) representing the dominant floristic pattern in the Amazon. In contrast to other tropical biomes in South America, including the Mata Atlântica (second largest rain forest biome in the neotropics), the main floristic units in the Amazon are not geographically separated, but are edaphically driven and spatially interdigitated across Amazonia. Two thirds of terra firme tree species are restricted to this vegetation type, while among marginal vegetation types, only white- sand forests (campinaranas) have a substantial proportion of restricted species, with other vegetation types sharing large numbers of species.
local.identifier.orcidhttps://orcid.org/0000-0002-6766-1407
local.identifier.orcidhttps://orcid.org/0000-0001-9232-5221
local.identifier.orcidhttps://orcid.org/0000-0002-8196-288X
local.identifier.orcidhttps://orcid.org/0000-0002-5732-1716
local.identifier.orcidhttps://orcid.org/0000-0001-6146-1618
local.identifier.orcidhttps://orcid.org/0000-0002-0855-4169
local.publisher.countryBrasil
local.publisher.departmentICB - DEPARTAMENTO DE BOTÂNICA
local.publisher.initialsUFMG
local.url.externahttps://onlinelibrary.wiley.com/doi/10.1111/btp.12932

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