We can see the inferred relationship between the species and the different
environmental variables far more clearly using the Rank Plot tab as shown for
The position of the species Potpal, Elepal and Ranfla at the extreme high moisture
content end of the distribution is now quite clear.
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13.3.1 Problems with Species Environment Correlation
The following words of caution are from
Influence of noisy environmental data on canonical correspondence analysis
by Bruce McCune
Ecology, Dec 1997.
As the number of variables in the second matrix increases to near the maximum
possible (one less than the number of sample units), the species environment
correlation always converges on 1.0. At that point, the LC scores (sites scores
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