2002
DOI: 10.2307/3071910
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The Role of the Seed Bank in Gap Regeneration in a Calcareous Grassland Community

Abstract: We conducted a factorial field experiment in order to investigate the role of the soil seed bank in gap recolonization in a calcareous grassland, using 240 experimental gaps (10 ϫ 10 cm). Experimental manipulations included the elimination of the seed bank (by sterilizing the soil), the elimination of short-distance seed rain by removing all flowerheads in 2 ϫ 2 m plots, and the prevention of lateral clonal spread by surrounding gap soil with 41-m nylon mesh. The influence of competition on regeneration was al… Show more

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Cited by 93 publications
(135 citation statements)
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“…Both spatial and temporal dispersal processes contribute to local coexistence in these grasslands (see also Kalamees and Zobel 2002); in sum, the nonlocal seedlings contributed a quantitatively significant component, about six species or 29%-57% of the diversity of seedlings that colonized gaps.…”
Section: Does Dispersal Contribute To Local Diversity?mentioning
confidence: 99%
“…Both spatial and temporal dispersal processes contribute to local coexistence in these grasslands (see also Kalamees and Zobel 2002); in sum, the nonlocal seedlings contributed a quantitatively significant component, about six species or 29%-57% of the diversity of seedlings that colonized gaps.…”
Section: Does Dispersal Contribute To Local Diversity?mentioning
confidence: 99%
“…The latter uniquely predicts that diversity would decline in the absence of dispersal, and the ideal test of the role of dispersal in diversity maintenance is, therefore, to experimentally decrease dispersal into communities. A few such experiments have been carried out (e.g., Williams 1984;Peart 1989;Kalamees and Zobel 2002), but they are technically difficult and subject to a number of artifacts and may therefore be feasible for only Predicted relationships between dispersal and local diversity in a metacommunity. For any local community, such a relationship divides the observed diversity into a dispersal-maintained component (indicated by the vertical lines parallel to the Y-axis for each community) and a dispersal-independent component (indicated by the intercepts of the curves).…”
mentioning
confidence: 99%
“…El uso de este método está más generalizado porque teóricamente es menos laborioso que MSS (Kalamees y Zobel, 2002;Clarke y Dorji, 2008;Espeland, 2010). Sin embargo, una de sus principales restricciones es su inefi ciencia al determinar el BS de muestras multiespecífi cas (Ishikawa-Goto y Tsuyuzaki, 2004), como las de la zona de estudio, en la cual se mezclan varias especies de acuáticas, subacuáticas y tolerantes (Figura 4), cada una con requerimientos de germinación particulares.…”
Section: Discussionunclassified