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

Facets (new session)
Description
Metadata
Settings
- owl:sameAs
- Inference Rule:

About: Too good to be true: Pitfalls of using mean Ellenberg indicator values in vegetation analyses Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://onlinelibrary.wiley.com/doi/10.1111/j.1654-1103.2011.01366.x/abstract
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. 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. (en)
Title	Too good to be true: Pitfalls of using mean Ellenberg indicator values in vegetation analyses Too good to be true: Pitfalls of using mean Ellenberg indicator values in vegetation analyses (en)
skos:prefLabel	Too good to be true: Pitfalls of using mean Ellenberg indicator values in vegetation analyses Too good to be true: Pitfalls of using mean Ellenberg indicator values in vegetation analyses (en)
skos:notation	RIV/00216224:14310/12:00057357!RIV13-GA0-14310___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GAP505/11/0732), Z(MSM0021622416)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Zelený, David
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Masarykova univerzita / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	174587
http://linked.open...ai/riv/idVysledku	RIV/00216224:14310/12:00057357
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Bio-indication; Circularity of reasoning; Compositional similarity; Environmental calibration; Null models; Ordination analysis; Randomization; Species richness; Weighted averaging (en)
http://linked.open.../riv/klicoveSlovo	Bio-indication Circularity of reasoning Compositional similarity Environmental calibration Null models Ordination analysis Randomization Weighted averaging Species richness
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[9FB0EB2504FD]
http://linked.open...i/riv/nazevZdroje	Journal of Vegetation Science
http://linked.open...in/vavai/riv/obor	EF
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Generalized supervised classification in community ecology
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	23
http://linked.open...iv/tvurceVysledku	Zelený, David Schaffers, Andre
http://linked.open...ain/vavai/riv/wos	000303042300003
http://linked.open...n/vavai/riv/zamer	Diversity of Biotic Communities and Populations: Causal Analysis of variation in space and time
issn	1100-9233
number of pages	13 (xsd:int)
http://bibframe.org/vocab/doi	10.1111/j.1654-1103.2011.01366.x
http://localhost/t...ganizacniJednotka	14310

Faceted Search & Find service v1.16.118 as of Jun 21 2024

Alternative Linked Data Documents: ODE Content Formats:

RDF

ODATA

Microdata

About

OpenLink Virtuoso version 07.20.3240 as of Jun 21 2024, on Linux (x86_64-pc-linux-gnu), Single-Server Edition (126 GB total memory, 48 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software