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Table 1 Pearson correlations between principal components and phenotypic traits

From: Knee-clicks and visual traits indicate fighting ability in eland antelopes: multiple messages and back-up signals

  PC1 (eigen-value 2.04) PC2 (eigen-value 1.55) PC3 (eigen-value 1.45) Facemask darkness Frontal brush size Body depth Knee-click frequency Horn length Dewlap droop
Body greyness 0.816*** -0.044 0.148 0.514*** 0.503*** 0.162 0.017 -0.199 0.053
Facemask darkness 0.835*** 0.146 -0.139   0.543*** 0.127 -0.196 0.026 0.027
Frontal brush size 0.809*** 0.109 0.140    0.140 -0.181 -0.175 0.145
Body depth 0.091 0.805*** 0.260     -0.515*** -0.304* 0.183
Knee-click frequency -0.070 -0.902*** 0.042      -0.186 -0.012
Horn length -0.075 -0.233 -0.792***       -0.387**
Dewlap droop 0.043 -0.028 0.833***       
  1. The analysis explained 72% of the variance in the variables. * P < 0.05, ** P < 0.01, *** P < 0.001.