A methodology to calculate Bioindication primary values

A methodology to calculate numeric values of primary indication values for ahypothetical taxon in relation to one or several hypothetical environmental factors in agiven regions, is proposed. Primary indication numeric values correspond to theminimum tolerance (Tm) of any taxon to one or several env...

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Bibliographic Details
Main Authors: Wolfgang Riss, Rodulfo Ospina, Juan David Gutiérrez
Format: Article
Language:English
Published: Universidad Nacional de Colombia 2002-07-01
Series:Acta Biológica Colombiana
Subjects:
Online Access:https://revistas.unal.edu.co/index.php/actabiol/article/view/26076
Description
Summary:A methodology to calculate numeric values of primary indication values for ahypothetical taxon in relation to one or several hypothetical environmental factors in agiven regions, is proposed. Primary indication numeric values correspond to theminimum tolerance (Tm) of any taxon to one or several environmental factors expressedby an environmental quality index. These values are obtained for each taxon basis of thefifth percentile of the normal adjusted distribution curve, using the abundance of eachtaxon in samples taken at ten intervals or classes in the environmental scale of eachfactor or group of factors on the corresponding quality index.
ISSN:0120-548X
1900-1649