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. 2006 Sep;72(9):5957–5962. doi: 10.1128/AEM.00439-06

TABLE 4.

Results of discriminant analyses of the 16S rRNA and the narG, nirK, nirS, and nosZ genes

Parameter (unit) Discriminant functiona
DF 1 DF 2 DF 3 DF 4
Wilks' lambda 0.147 0.617 0.849 0.994
Eigenvalue 3.184 0.377 0.171 0.006
Degrees of freedom 20 12 6 2
Cumulative variance (%) 85.2 95.3 99.8 100
Canonical correlation coefficient 0.87 0.52 0.38 0.08
Correlation coefficientb
    16S rRNA 0.74** 0.38* 0.30* 0.05
    narG −0.54** 0.11 0.62** 0.56**
    nirK 0.81** 0.04 0.22 0.36*
    nirS 0.07 0.70** −0.13 0.68**
    nosZ 0.75** −0.07 0.62** 0.15
a

August and September measurements were pooled; 10 measurements were taken for each successional age. Significance in the model is accepted at a P value of ≤0.05. *, P < 0.05; **, P < 0.01.

b

Denotes the correlation between the discriminating variables and the scores of each discriminant function.