Faster returns on 'leaf economics' and different biogeochemical niche in invasive compared with native plant species
Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Sardans i Galobart, Jordi (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Llusia, Joan (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Owen, Susan M. (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Carnicer i Cols, Jofre (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Giambelluca, Thomas (University of Hawaii at Manoa. Department of Geography)
Rezende, Enrico (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia)
Waite, Mashuri (University of Hawaii at Manoa. Department of Botany)
Niinemets, Ülo (Estonian University of Life Sciences. Institute of Agricultural and Environmental Sciences)

Fecha:	2010
Resumen:	Plant-invasive success is one of the most important current global changes in the biosphere. To understand which factors explain such success, we compared the foliar traits of 41 native and 47 alien-invasive plant species in Oahu Island (Hawaii), a location with a highly endemic flora that has evolved in isolation and is currently vulnerable to invasions by exotic plant species. Foliar traits, which in most cases presented significant phylogenetic signal, i. e. closely related species tended to resemble each other due to shared ancestry, separated invasive from native species. Invasive species had lower leaf mass per area and enhanced capacities in terms of productivity (photosynthetic capacity) and nutrient capture both of macro- (N, P, K) and microelements (Fe, Ni, Cu and Zn). All these differences remain highly significant after removing the effects of phylogenetic history. Alien-invasive species did not show higher efficiency at using limiting nutrient resources, but they got faster leaf economics returns and occupied a different biogeochemical niche, which helps to explain the success of invasive plants and suggests that potential increases in soil nutrient availability might favor further invasive plant success.
Derechos:	Tots els drets reservats.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió publicada
Materia:	Biogeochemical niche ; Hawaiian flora ; Invasive success ; Leaf economics ; Leaf elemental composition ; LMA ; Nutrient stoichiometry ; Photosynthetic capacity ; Nínxol biogeoquímics ; Flora de Hawaii ; Èxit invasor ; Economia del full ; Full de composició elemental ; Estequiometria de nutrients ; Capacitat fotosintètica ; Economia del total ; Total de COMPOSICIÓ elemental
Publicado en:	Global change biology, Vol. 16, Núm. 8 (Agost 2010) , p. 2171-2185, ISSN 1365-2486

DOI: 10.1111/j.1365-2486.2009.02054.x

15 p, 265.0 KB

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Documentos de investigación > Documentos de los grupos de investigación de la UAB > Centros y grupos de investigación (producción científica) > Ciencias > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals)
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