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How can an invasive grass affect fire behavior in a tropical savanna? A community and individual plant level approach

dc.contributor.authorGorgone-Barbosa, Elizabeth [UNESP]
dc.contributor.authorPivello, Vania Regina
dc.contributor.authorBautista, Susana
dc.contributor.authorZupo, Talita [UNESP]
dc.contributor.authorRissi, Mariana Ninno [UNESP]
dc.contributor.authorFidelis, Alessandra [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversity of Alicante
dc.date.accessioned2015-10-21T13:12:54Z
dc.date.available2015-10-21T13:12:54Z
dc.date.issued2015-01-01
dc.description.abstractSome invasive grasses have been reported to change fire behavior in invaded plant communities. Urochloa brizantha is an aggressive invasive grass in the Brazilian Cerrado, an ecosystem where fire is a common disturbance. We investigated the effects of U. brizantha on fire behavior in an open Cerrado physiognomy in Central Brazil. Using experimental burnings we compared fire behavior at both the community and the individual plant level in invaded (UJ) and non-invaded (NJ) areas burned in July. We also assessed the effect of fire season in invaded areas by comparing July (UJ) and October (UO) burnings. We evaluated the following variables: fuel load, fuel moisture, combustion efficiency, maximum fire temperature, flame height, and fire intensity. Additionally, we evaluated the temperatures reached under invasive and native grass tussocks in both seasons. Fuel load, combustion efficiency, and fire intensity were higher in NJ than in UJ, whilst flame height showed the opposite trend. Fuel amount and fire intensity were higher in October than in July. At the individual plant level, U. brizantha moisture was higher than that of native species, however, temperatures reaching >= 600 degrees C at ground level were more frequent under U. brizantha tussocks than under native grasses. At the community level, the invasive grass modified fire behavior towards lower intensity, lower burning efficiency, and higher flame height. These results provide essential information for the planning of prescribed burnings in invaded Cerrado areas.en
dc.description.affiliationUniversidade de São Paulo, Departamento de Ecologia
dc.description.affiliationUniversity of Alicante, Department of Ecology and IMEM
dc.description.affiliationUnespUniversidade Estadual Paulista, Departamento de Botânica, Instituto de Biociências de Rio Claro
dc.description.sponsorshipFundação Grupo Boticário de Proteção à Natureza
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdFundação Grupo Boticário de Proteção à Natureza: 0106_2011_PR
dc.description.sponsorshipIdCAPES: 227/2010
dc.format.extent423-431
dc.identifierhttp://link.springer.com/article/10.1007%2Fs10530-014-0740-z
dc.identifier.citationBiological Invasions. Dordrecht: Springer, v. 17, n. 1, p. 423-431, 2015.
dc.identifier.doi10.1007/s10530-014-0740-z
dc.identifier.issn1387-3547
dc.identifier.urihttp://hdl.handle.net/11449/128737
dc.identifier.wosWOS:000347526800037
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofBiological Invasions
dc.relation.ispartofjcr3.054
dc.relation.ispartofsjr1,514
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectAfrican grassen
dc.subjectCerradoen
dc.subjectFire behavioren
dc.subjectFire intensityen
dc.subjectFuel loaden
dc.subjectUrochloa brizanthaen
dc.titleHow can an invasive grass affect fire behavior in a tropical savanna? A community and individual plant level approachen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
dspace.entity.typePublication
unesp.author.lattes9816649379632045[6]
unesp.author.orcid0000-0001-8063-772X[2]
unesp.author.orcid0000-0001-7175-7076[3]
unesp.author.orcid0000-0001-9545-2285[6]
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Biociências, Rio Claropt
unesp.departmentBotânica - IBpt

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