Hi everybody,

I am here for asking some kind of help about taxonimic diversity and
distinctness indices, from
taxondive()<http://127.0.0.1:25979/library/vegan/html/taxondive.html>function
in vegan.
The function produced also expected values for Delta, Dela* and Delta +
indices but no metodology about how these expected data are calculed is
reported. How are they calculated?
According Clarke and Warwick (1998) it is also possible to plot a
confidence funnel of the result with plot.taxondive, where Delta * values
are plotted against corresponding number of species at each site. I argued
that I only 15 points, instead of 24 that is the overall sample number,
becasue there is an overplotting...do is it possible?
Moreover, there is the possibility to plot in the funnel diagram the name
of the samples?
Thank you to everyone,
G.

-- 
Gian Maria Niccolò Benucci, Ph.D.
Department of Applied Biology
University of Perugia

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