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Axes                                            1             2             3             4         Total inertia

Eigenvalues                       :         0.577         0.208         0.062         0.044                1.318
Lengths of gradient               :2.671         2.397         1.671         1.994
Cumulative percentage variance
    of species data                :          43.7          59.5          64.2          67.6

Sum of all               eigenvalues                                                                       1.318
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