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dc.contributorFacultad de Ciencias Biologicas y Ambientaleses_ES
dc.contributor.authorGalán Díaz, Javier
dc.contributor.authorVilà, Montserrat
dc.contributor.authorParker, Ingrid M.
dc.contributor.authorde la Riva, Enrique G.
dc.identifier.citationGalán Díaz, J., Vilà, M., Parker, I. M., & de la Riva, E. G. (2022). Functional assembly of grassland plant species in native communities in Spain and recipient communities in California. Journal of Ecology, 00, 1–13.
dc.description.abstract[EN] A major aim in invasion ecology is to understand the role of exotic species in plant communities. Whereas most studies have explored the traits of exotic species in the context of the introduced community, functional comparisons of entire assemblages of species in their native and introduced communities have rarely been analysed. Taking advantage of the unidirectional invasion of plant species of European origin (i.e. colonizers) into California, this study aims to investigate the relative importance of plant traits, environmental factors and invasion status in biological invasions. We compared the functional structure (i.e. trait composition and diversity) along resource availability gradients in recipient and native Mediterranean grassland communities in California and Spain, respectively. Traits were related to resource use in above-ground and below-ground organs and reproductive strategy. We also investigated how niche differences vary along environmental gradients between coexisting colonizer and native species assemblages within communities. There were clear differences in the functional structure of Mediterranean grassland communities between regions, which were associated with the resource availability gradient. Paradoxically, the most acquisitive communities occurred in resource-poor sites, highlighting that rapid acquisition and use of resources permit species to cope with environmental stress through stress avoidance. In Spain, colonizer species had greater specific leaf area than non-colonizers. Yet, differences between colonizer and non-colonizer species in Spain for other traits were mostly absent and did not change along the gradient. This might be a result of the greater native species richness as a consequence of the agricultural practices that have taken place in Europe for millennia and reflect that the entire species pool of grasslands is adapted to agricultural landscapes. In comparison, in California, colonizer species were more acquisitive in their use of resources than natives under favourable conditions, but functionally converged in resource-limited sites. Synthesis. These results underscore that the importance of niche differences between native and colonizer species as a community assembly mechanism is strongly subjected to the influence of habitat filtering. Trait comparisons are context dependent, and a correct interpretation of filtering processes in community assembly requires a regional perspective.es_ES
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.subjectEcología. Medio ambientees_ES
dc.subject.otherBiological invasionses_ES
dc.subject.otherCommunity assemblyes_ES
dc.subject.otherFunctional diversityes_ES
dc.subject.otherFunctional traitses_ES
dc.subject.otherMediterranean biomees_ES
dc.titleFunctional assembly of grassland plant species in native communities in Spain and recipient communities in Californiaes_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Programa Estatal de I+D+i Orientada a los Retos de la Sociedad/RTI2018-093504-B-I00/ES/DETERMINANTES DEL EXITO DE ARBOLES EXOTICOS EN DISTINTAS ETAPAS DE DEL PROCESO DE INVASIONes_ES
dc.journal.titleJournal of Ecologyes_ES
dc.subject.unesco2417.13 Ecología Vegetales_ES

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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internacional