Vliv velikosti plochy na ordinaci vegetačních snímků

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F06%3A00016145" target="_blank" >RIV/00216224:14310/06:00016145 - 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

Effects of plot size on the ordination of vegetation samples

Popis výsledku v původním jazyce

Questions: Do ordination patterns differ when based on vegetation samples recorded in plots of different size? If so, how large is the effect of plot size relative to the effects of data set heterogeneity and of using presence/absence or cover-abundancedata? Can we combine plots of different size in a single ordination? Methods: Two homogeneous and two heterogeneous data sets were sampled in Czech forests and grasslands. Coverabundances of plant species were recorded in series of five or six nested quadrats of increasing size (forest 49-961 m2; grassland 1-49 m2). Separate ordinations were computed for plots of each size for each data set, using either species presences/absences or cover-abundances recorded on an ordinal scale. Ordination patterns were compared with Procrustean analysis. Also, ordinations of data sets jointly containing plots of different size were calculated; effects of plot size were evaluated using a Monte Carlo test in constrained ordination. Results: The results

Název v anglickém jazyce

Effects of plot size on the ordination of vegetation samples

Popis výsledku anglicky

Questions: Do ordination patterns differ when based on vegetation samples recorded in plots of different size? If so, how large is the effect of plot size relative to the effects of data set heterogeneity and of using presence/absence or cover-abundancedata? Can we combine plots of different size in a single ordination? Methods: Two homogeneous and two heterogeneous data sets were sampled in Czech forests and grasslands. Coverabundances of plant species were recorded in series of five or six nested quadrats of increasing size (forest 49-961 m2; grassland 1-49 m2). Separate ordinations were computed for plots of each size for each data set, using either species presences/absences or cover-abundances recorded on an ordinal scale. Ordination patterns were compared with Procrustean analysis. Also, ordinations of data sets jointly containing plots of different size were calculated; effects of plot size were evaluated using a Monte Carlo test in constrained ordination. Results: The results

Druh

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

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

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Projekt

<a href="/cs/project/GA206%2F05%2F0020" target="_blank" >GA206/05/0020: Vegetace České republiky: formalizovaná typizace, monografie a expertní systém</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název periodika

Journal of Vegetation Science

ISSN

110-9233

e-ISSN

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Svazek periodika

17

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

SE - Švédské království

Počet stran výsledku

8

Strana od-do

465-472

Kód UT WoS článku

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EID výsledku v databázi Scopus

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