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rdf:type
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rdfs:seeAlso
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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)
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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)
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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)
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skos:notation
| - RIV/00216224:14310/12:00057357!RIV13-GA0-14310___
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http://linked.open...avai/predkladatel
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - P(GAP505/11/0732), Z(MSM0021622416)
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/00216224:14310/12:00057357
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - Bio-indication; Circularity of reasoning; Compositional similarity; Environmental calibration; Null models; Ordination analysis; Randomization; Species richness; Weighted averaging (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Journal of Vegetation Science
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Zelený, David
- Schaffers, Andre
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http://linked.open...ain/vavai/riv/wos
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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http://bibframe.org/vocab/doi
| - 10.1111/j.1654-1103.2011.01366.x
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http://localhost/t...ganizacniJednotka
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is http://linked.open...avai/riv/vysledek
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