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Table 2 Factor loadings for variables, eigenvalues, and percent of total variance explained for principal components

From: Biogeography, phylogeny, and morphological evolution of central Texas cave and spring salamanders

Measurement PC 1 PC 2 PC 3
AG 0.741 −0.315 −0.583
ALL 0.965 0.150 0.065
ED 0.342 −0.857 0.384
HLA 0.978 −0.006 0.128
HLB 0.970 0.101 0.149
HLC 0.979 0.032 0.157
HLL 0.960 0.174 0.100
HW 0.963 0.067 0.093
IOD 0.945 0.158 0.076
SL 0.821 −0.150 −0.538
Eigenvalue 7.870 0.949 0.868
% Variance Explained 78.7 9.5 8.7
  1. Principal components were derived from the correlation matrix of log10-transformed morphometric data.