Je obrat populací jednoletek s nespojitým výskytem spíše výsledkem dynamiky dormance nebo prostorového šíření semen?

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F05%3A00027253" target="_blank" >RIV/67985939:_____/05:00027253 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Is the population turnover of patchy-distributed annuals determined by dormancy dynamics or dispersal processes?

Popis výsledku v původním jazyce

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, thenspatial 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.

Název v anglickém jazyce

Is the population turnover of patchy-distributed annuals determined by dormancy dynamics or dispersal processes?

Popis výsledku anglicky

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, thenspatial 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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EF - Botanika

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2005

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Ecography

ISSN

0906-7590

e-ISSN

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Svazek periodika

28

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

DK - Dánské království

Počet stran výsledku

12

Strana od-do

745-756

Kód UT WoS článku

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EID výsledku v databázi Scopus

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