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dc.contributor.authorLongo, Grisel-
dc.contributor.authorSeidler, Tristram G.-
dc.contributor.authorGaribaldi, Lucas Alejandro-
dc.contributor.authorTognetti, Pedro M.-
dc.contributor.authorChaneton, Enrique J.-
dc.date.accessioned2019-10-23T11:50:52Z-
dc.date.available2019-10-23T11:50:52Z-
dc.date.issued2013-06-13-
dc.identifier.citationLongo, Maria G., Seidler, Tristram G., Garibaldi, Lucas A., Tognetti, Pedro M. y Chaneton, Enrique J. (2013). Functional group dominance and identity effects influence the magnitude of grassland invasion. Wiley; Journal of Ecology; 101 (5); 1114-1124es_ES
dc.identifier.issn0022-0477es_ES
dc.identifier.urihttp://onlinelibrary.wiley.com/doi/10.1111/1365-2745.12128/abstract-
dc.identifier.urihttp://hdl.handle.net/11336/4258-
dc.identifier.urihttps://rid.unrn.edu.ar/jspui/handle/20.500.12049/3459-
dc.format.extentp. 1114–1124es_ES
dc.format.mediumimpresoes_ES
dc.format.mediumdigitales_ES
dc.language.isoeses_ES
dc.publisherWiley Online Libraryes_ES
dc.titleFunctional group dominance and identity effects influence the magnitude of grassland invasiones_ES
dc.typeArticuloes_ES
dc.rights.licensehttps://creativecommons.org/licenses/by-nc-sa/4.0/es_ES
dc.description.filiationFil: Longo, Grisel. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura (IFEVA)-CONICET; Argentina.es_ES
dc.description.filiationFil: Seidler, Tristram G. Harvard Forest; USA.es_ES
dc.description.filiationFil: Garibaldi, Lucas Alejandro. Universidad Nacional de Río Negro. Sede Andina; Argentina.es_ES
dc.description.filiationFil: Tognetti, Pedro M. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura (IFEVA)-CONICET; Argentina.es_ES
dc.description.filiationFil: Chaneton, Enrique J. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura (IFEVA)-CONICET; Argentina.es_ES
dc.description.filiationFil: Garibaldi, Lucas Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.es_ES
dc.description.filiationFil: Tognetti, Pedro M. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Métodos Cuantitativos y Sistemas de Información; Argentina.es_ES
dc.subject.keywordBiodiversityes_ES
dc.subject.keywordBiotic Resistancees_ES
dc.subject.keywordInvasion Ecologyes_ES
dc.subject.keywordMass Ratio Hypothesises_ES
dc.subject.keywordPhenological Nicheses_ES
dc.subject.keywordRank Abundancees_ES
dc.subject.keywordRemoval Experimentes_ES
dc.subject.keywordSubadditive Effectes_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES
dc.origin.lugarDesarrolloUniversidad de Buenos Aires, Facultad de Agronomía, Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura (IFEVA)-CONICETes_ES
dc.relation.journalissue101es_ES
dc.description.reviewtruees_ES
dc.description.resumenVariation in functional community composition is expected to influence the extent of exotic species invasions. Yet, whether resident functional groups control invasion through their relative biomass (mass ratio hypothesis) or by traits other than biomass (identity hypothesis) remains poorly understood. We performed a 6 year experiment to determine the effects of removing different functional groups on exotic species biomass in a Flooding Pampa grassland, Argentina. Functional groups were defined by life form (grasses or forbs), phenology (winter or summer) and origin (native or exotic). Removal of each functional group was compared against the removal of an equivalent amount of random biomass. Exotic group responses were monitored over 4 years of continuous removals, and after 2 years of recovery without manipulations. Removal of dominant native summer grasses caused the greatest impact on exotic species and overall community composition. Native summer grass removal significantly increased exotic grass (120%) and forb (730%) biomass beyond the level (46% and 180%, respectively) expected from deleting a similar amount of biomass at random. Exotic annual grasses showed only a transient increase, whereas exotic forb invasion persisted even after 2 years without removals. Removing subordinate, native or exotic winter grasses, and rare native forbs significantly promoted exotic forbs, but to the same level (300%) as random biomass removals. Total grass removal increased exotic forbs to half the extent expected from adding the effects of single grass group removals. Dispersal limitation and harsh abiotic conditions may constrain exotic forb spread into such heavily grass depleted patches. Synthesis. The impact of losing a functional group on the magnitude and persistence of invasion reflected its relative contribution to community biomass. Identity attributes other than biomass (e.g. phenological niche) further enhanced the biotic control that dominant native grasses exerted on established exotic species. Our findings highlight the community legacies of past disturbances to dominant functional groups.es_ES
dc.identifier.doihttp://dx.doi.org/10.1111/1365-2745.12128-
dc.relation.journalTitleJournal of Ecologyes_ES
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