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Is the population turnover of patchy-distributed annuals determined by dormancy dynamics or dispersal processes?
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SYSNO ASEP 0027253 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Is the population turnover of patchy-distributed annuals determined by dormancy dynamics or dispersal processes? Title Je obrat populací jednoletek s nespojitým výskytem spíše výsledkem dynamiky dormance nebo prostorového šíření semen? Author(s) Dostál, Petr (BU-J) RID, ORCID Source Title Ecography. - : Wiley - ISSN 0906-7590
Roč. 28, č. 6 (2005), s. 745-756Number of pages 12 s. Language eng - English Country DK - Denmark Keywords population turnover ; Lasius flavus ; isolation Subject RIV EF - Botanics CEZ AV0Z60050516 - BU-J (2005-2011) Annotation In patchy-distributed plants with persistent soil seed bank, vacated patch can be (re)colonized by means of diaspores spreading from neihgboring populations, and/or by seeds from the soil. If the latter source is more important for (re)colonisation, then spatial configulation of patches is of little importance. I analysed turnover dynamics of 5 annual species growing on ant-mounds over three years. Based on the knowledge of dispersal and seed survival capacity, I assesed the importance of each seed source for population (re)colonization. Seeds persisting in the soil were determined in the simulation to be much more important than seeds spreading from other populations. Nevertheless, analysis of observed turnover pattern clearly proved significance of spatial configuration and thus also importance of seeds spreading from neighhboring populations. Discrepancy between expected and observed pattern is discussed. Workplace Institute of Botany Contact Martina Bartošová, martina.bartosova@ibot.cas.cz, ibot@ibot.cas.cz, Tel.: 271 015 242 ; Marie Jakšová, marie.jaksova@ibot.cas.cz, Tel.: 384 721 156-8 Year of Publishing 2006
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