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Clonal reproduction of Azolla filiculoides Lam.: implications for invasiveness


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Opened Access Clonal reproduction of Azolla filiculoides Lam.: implications for invasiveness
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Author: Fernández Zamudio, María del Rocío
Cirujano Bracamonte, Santos
Meco, Ana
García Murillo, Pablo
Department: Universidad de Sevilla. Departamento de Biologia Vegetal y Ecologia
Date: 2013
Published in: Limnetica, 32(2), 245-252
Document type: Article
Abstract: Clonal reproduction of Azolla filiculoides Lam., an aquatic floating fern, native from the American subtropics and a recent invader of Mediterranean wetlands, was assessed experimentally. Shoot fragmentation of the species was quantified under suitable room conditions for optimum growth. Azolla fililculoides showed high longevity, a low mortality percentage and a high potential for clonal reproduction (biomass obtained by shoot fragmentation from only one individual was multiplied by 100). This last attribute changed over time: first generations developed a high number of propagules, a number which decreased progressively in later generations until the end of the experiment. The results of this experiment will be useful for understanding Azolla’s success within invaded habitats.
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