The environmental triangle of the Cerrado Domain: ecological factors driving shifts in tree species composition between forests and savannas

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dc.creatorMarcelo Leandro Bueno
dc.creatorKyle Graham Dexter
dc.creatorToby Pennington
dc.creatorVanessa Pontara
dc.creatorDanilo Rafael Mesquita Neves
dc.creatorJames Alexander Ratter
dc.creatorAry Teixeira de Oliveira Filho
dc.date.accessioned2023-06-22T22:03:20Z
dc.date.accessioned2025-09-09T01:30:00Z
dc.date.available2023-06-22T22:03:20Z
dc.date.issued2018
dc.identifier.doihttps://doi.org/10.1111/1365-2745.12969
dc.identifier.issn1365-2745
dc.identifier.urihttps://hdl.handle.net/1843/55246
dc.languagepor
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofJournal of Ecology
dc.rightsAcesso Aberto
dc.subjectCerrados - Brasil
dc.subjectFogo
dc.subjectSavanas
dc.subject.otherCerrado sensu stricto
dc.subject.otherDystrophic cerradão
dc.subject.otherFire
dc.subject.otherGallery forest
dc.subject.otherMesotrophic cerradão
dc.subject.otherNeotropical savanna
dc.subject.otherSeasonally dry tropical forest
dc.subject.otherSemideciduous forest
dc.titleThe environmental triangle of the Cerrado Domain: ecological factors driving shifts in tree species composition between forests and savannas
dc.typeArtigo de periódico
local.citation.epage2120
local.citation.issue5
local.citation.spage2109
local.citation.volume106
local.description.resumoThe Cerrado Domain of central Brazil houses the largest extent of savanna in the Neotropics, but despite its simple characterization as a giant savanna, it contains considerable vegetation heterogeneity that is poorly understood. We aimed to determine how vegetation types in the Cerrado diverge in their tree species composition and what role ecological factors play in driving compositional patterns. We used a dataset of 1,165 tree species inventories spread across the Cerrado Domain, which come from six vegetation types that have a substantial arboreal component: woody savannas, dystrophic cerradão, mesotrophic cerradão, seasonally dry tropical forests, semideciduous forests and evergreen forests. We found three extremes in terms of tree species composition, with clear underlying ecological drivers, which leads us to propose a ternary model, the Cerrado Vegetation Triangle, to characterize woody vegetation in the Cerrado. At one extreme, we found that semideciduous and evergreen forests are indistinguishable floristically and are found in areas with high water availability. At another extreme lie seasonally dry tropical forests which are found on more fertile soils. At the third extreme, we found that all types of savanna, and dystrophic cerradão, are highly similar in tree species composition and are commonly found in areas of poor soils and high flammability. Mesotrophic cerradão is transitional in tree species composition between savannas and seasonally dry tropical forest. The lack of variation in tree species composition attributed to climatic variables indicates that within homogeneous macroclimatic zones, many types of forest and savanna co-exist due to complex mosaics of local substrate heterogeneity and fire history. Synthesis. Our findings highlight the complexity of forest–savanna transitions in the Cerrado Domain, with relevance for understanding the future of Cerrado vegetation under environmental change. If nitrogen deposition is extensive, some savannas may be more likely to transition to mesotrophic cerradão or even seasonally dry tropical forest, whereas if water availability increases these same savannas may transition to semideciduous or evergreen forest. Our “Cerrado Vegetation Triangle” model offers a simple conceptual tool to frame discussions of conservation and management.
local.identifier.orcidhttps://orcid.org/0000-0001-6146-1618
local.identifier.orcidhttps://orcid.org/0000-0001-9232-5221
local.identifier.orcidhttps://orcid.org/0000-0002-8196-288X
local.identifier.orcidhttps://orcid.org/0000-0002-0872-2759
local.identifier.orcidhttps://orcid.org/0000-0002-0855-4169
local.identifier.orcidhttps://orcid.org/0000-0002-6766-1407
local.publisher.countryBrasil
local.publisher.departmentICB - DEPARTAMENTO DE BOTÂNICA
local.publisher.initialsUFMG
local.url.externahttps://besjournals.onlinelibrary.wiley.com/doi/full/10.1111/1365-2745.12969

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