Effects of Mangrove Zonation and the Physicochemical Parameters of Soil on the Distribution of Macrobenthic Fauna in Kadolkele Mangrove Forest, a Tropical Mangrove Forest in Sri Lanka

Table 7

Summary of the eigenvalues, eigenvectors, and PCA scores of the epifaunal community of the 3 mangrove zones in Kadolkele mangrove forest.

Eigenvalues
PC	Eigenvalues	%Variation	Cum. %variation
1	4.47	74.6	74.6
2	1.53	25.4	100.0
Eigenvectors
Variable	PC1	PC2
Cassidula nucleus (Nuclues Cassidula snail)	0.129	0.779
Sesarma smithii	−0.458	−0.197
Episesarma versicolor (Violet vinegar crab)	−0.464	0.152
Sesarma guttatum	0.338	−0.565
Paratrechina longicornis (Black Ant)	−0.470	−0.092
Solenopsis geminata (Red tropical fire ant)	0.472	0.058
Principal component scores
Sample	Score 1	Score 2
Rhizophora zone	0.669	1.372
Avicennia zone	−2.369	−0.348
Lumnitzera zone	1.700	−1.024