Resource Availability Shapes Fire-filtered Savannas

dc.creatorDantas
dc.creatorVinicius de L.; Batalha
dc.creatorMarco A.; Franca
dc.creatorHelena; Pausas
dc.creatorJuli G.
dc.date2015-MAR
dc.date2016-06-07T13:16:44Z
dc.date2016-06-07T13:16:44Z
dc.date.accessioned2018-03-29T01:37:21Z
dc.date.available2018-03-29T01:37:21Z
dc.identifier
dc.identifierResource Availability Shapes Fire-filtered Savannas. Wiley-blackwell, v. 26, p. 395-403 MAR-2015.
dc.identifier1100-9233
dc.identifierWOS:000349376200018
dc.identifier10.1111/jvs.12247
dc.identifierhttp://onlinelibrary.wiley.com/doi/10.1111/jvs.12247/abstract
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/242161
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1305859
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionQuestionsHumid savannas can be considered fire-filtered landscapes because fire is very frequent (<10yr return intervals) and only fire-resistant species can occur. This flammable vegetation can be functionally heterogeneous, structurally and floristically patchy. We hypothesized that resource availability (mainly water and nutrient availabilities) accounted for most of the functional and phylogenetic spatial structure of communities across these savanna landscapes. LocationEmas National Park, central Brazil. MethodsWe used individual-based functional trait, phylogenetic and environmental data combined with spatial information to assess the main drivers and mechanisms of community functional change (turnover) in a large fire-filtered savanna landscape. We used Mantel correlograms and a maximum rank correlation approach to assess the spatial structure and the subset of landscape factors that best predict compositional, phylogenetic, species-based and individual-based functional community turnovers and the mechanism by which they do operate. ResultsCommunities were spatially structured across the landscape, presenting functional convergence at shorter distances and divergence at larger distances. All of the turnover metrics presented unique spatial structures and were correlated with a unique set of landscape predictors. Soil texture accounted for the largest fraction of the spatial structure, but soil N availability, pH, altitude and fire frequency were also important. ConclusionsOur results support the idea that the patchy distribution of water and nutrients mediated by clay content shape community membership in fire-filtered savannas, whereas current variations in fire frequency interact with resource availability to shift community attributes from species average trait values (intraspecific variability).
dc.description26
dc.description2
dc.description
dc.description395
dc.description403
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionBrazilian Government (CPNq) [300051/2009-3]
dc.descriptionSpanish Government [CGL2009-12048/BOS, CGL2012-39938-C02-00]
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFAPESP [2010/01835-0]
dc.description
dc.description
dc.description
dc.languageen
dc.publisherWILEY-BLACKWELL
dc.publisher
dc.publisherHOBOKEN
dc.relationJOURNAL OF VEGETATION SCIENCE
dc.rightsfechado
dc.sourceWOS
dc.subjectVegetation Structure
dc.subjectBrazilian Savanna
dc.subjectHydraulic Architecture
dc.subjectNeotropical Savannas
dc.subjectCommunity Structure
dc.subjectPlant-communities
dc.subjectWater Relations
dc.subjectBeta Diversity
dc.subjectNational-park
dc.subjectForest
dc.titleResource Availability Shapes Fire-filtered Savannas
dc.typeArtículos de revistas


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