
handle: 10261/131789
[ES]La especie endémica mexicana Agave difformis A. Berger (Agavaceae) se reporta por primera vez fuera de su área de distribución nativa. Se ha localizado una pequeña población compuesta por dos núcleos separados por unos 50 m cerca de la ciudad de Tarragona (Cataluña, España). Se ha realizado su censo (contabilizándose un total de 139 rosetas, 46 de las cuales son adultas), además de un estudio morfométrico. La población, que parece bien establecida y con tendencia a la expansión, se encuentra bajo un pequeño pinar con restos de maquia litoral. La profusión de especies alóctonas (y algunas autóctonas usadas en jardinería) como acompañantes indica que la población de A. difformis podría haberse originado a partir del abandono de restos de poda.
[EN]The Mexican endemic Agave difformis A. Berger (Agavaceae) is reported for the first time out of its native range. A small population composed of two groups separated by 50 m has been located near the city of Tarragona (Catalonia, Spain). A census of the population has been carried out (a total of 139 rosettes were counted, of which 46 were regarded as adults) together with a morphometric study. The population of A. difformis, which occurs under pine trees in remnants of Mediterranean coastal scrub, appears to be well-established and expanding. The large number of accompanying alien species (as well as some native taxa used as ornamentals) suggests that the population of A. difformis could have originated from dumped garden debris.
Este trabajo ha sido posible gracias al proyecto 2014SGR514 (programa “Ajuts a grups de recerca consolidats de la Generalitat de Catalunya”).
17 p., fot., gráf.
Peer reviewed
Alien flora, Agave, Spain, España, Tarragona, Flora alóctona
Alien flora, Agave, Spain, España, Tarragona, Flora alóctona
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