Experimental assessment of Heliconia acuminata growth in a fragmented Amazonian landscape

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dc.contributor.authorBruna, E. M.
dc.contributor.authorNardy, O.
dc.contributor.authorStrauss, S. Y.
dc.contributor.authorHarrison, S.
dc.contributor.institutionUniv Calif Davis
dc.contributor.institutionInstituto Nacional de Pesquisas da Amazônia (INPA)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-02-26T17:14:09Z
dc.date.accessioned2014-05-20T13:57:18Z
dc.date.available2014-02-26T17:14:09Z
dc.date.available2014-05-20T13:57:18Z
dc.date.issued2002-08-01
dc.description.abstract1 Fragmentation severely alters physical conditions in forest understories, but few studies have connected these changes to demographic impacts on forest species using detailed experimental examination at the individual and population levels.2 Using a 32-month, reciprocal-transplant experiment, we show that individuals of the Amazonian understory herb Heliconia acuminata transplanted into forest fragments lost over 20% of their vegetative shoots, while those transplanted to continuous forest showed a slight gain. The leaf area of plants in fragments also increased at half the rate it did in continuous forest sites.3 It appears that the normal dry season stresses to which forest understorey plants are exposed are greatly exacerbated in fragments, causing plants to shed shoots and leaves.4 the observed shifts in size could help explain why populations in fragments are more skewed towards smaller demographic stage classes than those in continuous forest. These shifts in size structure could also result in reduced abundances of flowering plants, as reproduction in H. acuminata is positively correlated with shoot number.5 Fragmentation-related changes in growth rates resulting from abiotic stress may have significant demographic consequences.en
dc.description.affiliationUniv Calif Davis, Ctr Populat Biol, Davis, CA 95616 USA
dc.description.affiliationINPA, PDBFF, Biol Dynam Forest Fragments Project, BR-69011970 Manaus, Amazonas, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Ecol, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Ecol, BR-13506900 Rio Claro, SP, Brazil
dc.format.extent639-649
dc.identifierhttp://dx.doi.org/10.1046/j.1365-2745.2002.00707.x
dc.identifier.citationJournal of Ecology. Oxford: Blackwell Publishing Ltd, v. 90, n. 4, p. 639-649, 2002.
dc.identifier.doi10.1046/j.1365-2745.2002.00707.x
dc.identifier.fileWOS000177368400005.pdf
dc.identifier.issn0022-0477
dc.identifier.urihttp://hdl.handle.net/11449/20440
dc.identifier.wosWOS:000177368400005
dc.language.isoeng
dc.publisherBlackwell Publishing
dc.relation.ispartofJournal of Ecology
dc.relation.ispartofjcr5.172
dc.relation.ispartofsjr3,312
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectforest fragmentationpt
dc.subjectgrowth ratespt
dc.subjectHeliconiaceaept
dc.subjectroot : shoot ratiopt
dc.subjectunderstorey plantspt
dc.subjectwater stresspt
dc.titleExperimental assessment of Heliconia acuminata growth in a fragmented Amazonian landscapeen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderBlackwell Publishing Ltd
unesp.author.orcid0000-0002-6117-4085[3]
unesp.author.orcid0000-0003-3381-8477[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

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Artigos - Ecologia - IBRC