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Título: | Leaf morpho-physiological comparison between native and non-native plant species in a Mediterranean island |
Autor: | Abdallah, Mohamad CSIC ORCID; Douthe, Cyril; Flexas, Jaume | Palabras clave: | Mallorca Plant invasions Photosynthesis Mesophyll conductance Photosynthetic limitations Mesophyll conductance limitation Leaf morphology Leaf economics spectrum |
Fecha de publicación: | 27-abr-2022 | Editor: | Springer Nature | Citación: | Biological Invasions 24: 2597-2612 (2022) | Resumen: | Islands tend to be more prone to plant invasions than mainland regions, with the Mediterranean ones not being an exception. So far, a large number of studies on comparing leaf morphological and physiological traits between native and non-native plants in Mediterranean environments have been performed, although none of them on Mediterranean islands. To fill this gap, this study focuses on 14 plant species grown in a controlled growth chamber in the absence of stress. The goal was (1) to differentiate leaf morpho-physiological traits between native and non-native plants on a Mediterranean island and (2) to deepen in the underlying causes of the differential photosynthetic traits displayed by non-native species. Results showed that in Mediterranean islands, non-native plant species show on average larger values of net CO2 assimilation, stomatal conductance (gm), photosynthetic nitrogen-use efficiency, among others, and lower leaf mass per area (LMA) and leaf thickness, compared to the native species. Among the assessed traits, this study reports for the first time larger gm, and lower mesophyll conductance limitation in non-native species, which seems to be linked to their lower LMA. These novel traits need to be added to the ‘leaf physiological trait invasive syndrome’. It was also found that on a Mediterranean island, native and non-native species are placed on opposite sides of the leaf economics spectrum, with non-native species being placed on the ‘‘fast-return’’ end. In conclusion, this study demonstrates that non-native species inhabiting a Mediterranean island possess distinct leaf morphological and physiological traits compared to co-occurring native species, at least during the favorable growth season, which increases the chances of a successful invasion. | Versión del editor: | http://dx.doi.org/10.1007/s10530-022-02797-4 | URI: | http://hdl.handle.net/10261/282517 | DOI: | 10.1007/s10530-022-02797-4 | Identificadores: | doi: 10.1007/s10530-022-02797-4 issn: 1387-3547 e-issn: 1573-1464 |
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