Too good to be true: Pitfalls of using mean Ellenberg indicator values in vegetation analyses

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F12%3A00057357" target="_blank" >RIV/00216224:14310/12:00057357 - isvavai.cz</a>

Result on the web

<a href="http://onlinelibrary.wiley.com/doi/10.1111/j.1654-1103.2011.01366.x/abstract" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1111/j.1654-1103.2011.01366.x/abstract</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/j.1654-1103.2011.01366.x" target="_blank" >10.1111/j.1654-1103.2011.01366.x</a>

Result language

angličtina

Original language name

Too good to be true: Pitfalls of using mean Ellenberg indicator values in vegetation analyses

Original language description

Question: Mean Ellenberg indicator values (EIVs) may inherit information about compositional similarity, as during their calculation species abundances (or presence-absences) are used as weights. Can this similarity issue actually be demonstrated, does it bias results of vegetation analyses correlating mean EIVs with other aspects of species composition and how often are biased studies published? Methods: In order to separate information on compositional similarity possibly present in mean EIVs, a new variable was introduced, calculated as a weighted average of randomised species EIVs. The performance of these mean randomized EIVs was compared with that of the mean real EIVs on the one hand and random values (randomized mean EIVs) on the other. To demonstrate the similarity issue, differences between samples were correlated with similarity matrices based on various indices.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EF - Botany

OECD FORD branch

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Project

<a href="/en/project/GAP505%2F11%2F0732" target="_blank" >GAP505/11/0732: Generalized supervised classification in community ecology</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2012

Confidentiality

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

Name of the periodical

Journal of Vegetation Science

ISSN

1100-9233

e-ISSN

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Volume of the periodical

23

Issue of the periodical within the volume

3

Country of publishing house

US - UNITED STATES

Number of pages

13

Pages from-to

419-431

UT code for WoS article

000303042300003

EID of the result in the Scopus database

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