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- W2569432827 abstract "espanolEn este trabajo se ha medido la produccion primaria anual de dos isoetes anfibios en dos sistemas temporales diferentes en el NE de Espana: Isoetes echinospora, en una charca semipermanente de alta montana y Isoetes delilei, en una charca temporal mediterranea. La produccion primaria de las hojas mostro una distribucion unimodal con un maximo en julio para I. echinospora y en abril para I. delilei. La poblacion de I. echinospora produjo 38.7 g PS m–2y–1 (15.5 g C m–2y–1) en hojas el ano de completa inmersion, pero la produccion aumento a 49.3 g PS m–2y–1 (19.7 g C m–2y–1) el ano en el que las plantas estuvieron emergidas durante dos meses (incremento del 27.4%). La produccion de hojas de I. delilei tambien aumento significativamente despues de la emersion (la charca se seca anualmente) y alcanzo una produccion anual de 676.7 g PS m–2y–1 (265.3 g C m–2y–1). La produccion primaria de hojas de I. delilei fue 15 veces mayor que la de I. echinospora y muy superior a los rangos descritos para los isoetidos submergidos. El incremento de produccion de I. echinospora en condiciones de emersion temporal junto con la inusual y elevada produccion de I. delilei en una charca temporal, sugieren que la emersion temporal aumenta la produccion primaria en los isoetes anfibios. EnglishAnnual primary production of two amphibious quillworts was measured in two contrasting temporary environments in NE Spain: Isoetes echinospora growing in a high mountain semipermanent pool and Isoetes delilei growing in a Mediterranean pool. Leaf primary production showed a unimodal distribution with a peak in July for I. echinospora and in April for I. delilei. The population of I. echinospora produced 38.7 g DW m–2y–1 (15.5 g C m–2y–1) of leaves the year of complete submersion, but leaf production increased to 49.3 g DW m–2y–1 (19.7 g C m–2y–1) the year with two months of emersion (27.4% increase). Leaf production of I. delilei also increased significantly after emersion (the pool dries out annually) and reached an annual leaf production of 676.7 g DW m–2y–1 (265.3 g C m–2y–1). I. delilei leaf production was 15 times higher than I. echinospora and much higher than the described range for submerged isoetids. The production increase of I. echinospora under temporal emersion together with the unusual high production of I. delilei thriving in temporary pools suggests that temporal emersion enhance amphibious isoetid production." @default.
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- W2569432827 date "2016-01-01" @default.
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- W2569432827 title "Temporary emersion enhances amphibious Isoetes production" @default.
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