Appendix D. Tables showing variance decomposition by (A) RDA and (B) CCA of the untransformed species data.
Table D1. Variance decomposition by RDA (on the covariance matrix) and CCA of the untransformed species data into its purely environmental (RP_E), pure historical (RP_H), purely spatial (RP_S), and various mixed components.
Fractions (variance components)
Herbs (P–A)
Woody plants (P–A )
Woody plants (Den.)
% of
% of
% of
TV
TVE
TV
TVE
TV
TVE
A) by RDA RP_E
6.7
28.4
5.5
24.6
8.2
22.3
RP_H
0.7
3.0
0.8
3.6
0.3
0.8
RP_S
5.9
25.0
7.0
31.3
15.1
41.1
RMX_E&H
0.6
2.5
0.5
2.2
0.8
2.2
RMX_E&S
7.4
31.4
5.5
24.6
10.3
28.1
RMX_H&S
1.3
5.5
2.4
10.7
2.2
6.0
RMX_E&H&S
1.0
4.2
0.7
3.1
-0.2
-0.5
Residuals
76.4
77.6
63.3
B) by CCA RP_E
5.9
36.8
4.5
24.6
7.1
19.7
RP_H
0.8
3.7
1.0
5.2
0.7
2.7
RP_S
10.7
29.4
6.5
35.4
5.7
36.0
RMX_E&H
0.6
1.8
0.4
2.2
0.3
2.2
RMX_E&S
8.9
19.6
4.3
23.7
3.8
29.9
RMX_H&S
2.4
5.0
1.3
7.1
1.0
8.0
RMX_E&H&S
0.5
3.7
0.3
1.8
0.7
1.7
Residuals
80.6
81.8
70.3
Notes: P–A = presence–absence data; Den. = density data; TV = total variance; TVE = total variance explained.