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Article: Assessing species diagnostic value in large data sets: a comparison between phi-coefficient and Ochiai index.(Report)
- Article from:
- Journal of Vegetation Science
- Article date:
- December 1, 2008
- Author:
CopyrightCOPYRIGHT 2008 Opulus Press AB. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Introduction
Diagnostic species--species that show a preference for a given biotic community--are useful in field surveys for the identification of community types (Chytry et al. 2002a; Dufrene & Legendre 1997). In European phytosociology, the term 'fidelity' was coined to refer to the degree of preference shown by a species for a particular community (Poore 1955; Westhoff & van der Maarel 1973). With the availability of large releve vegetation databases (Brisse et al. 1995; Ewald 2002; Font 2007; Hennekens & Schaminee 2001), diagnostic species and the objective measurement of fidelity have become a major research topic (Botta-Dukat & Borhidi 1999; Bruelheide ...
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