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Table 1 Results from principal component analysis

From: The evolution of contact calls in isolated and overlapping populations of two white-eye congeners in East Africa (Aves, Zosterops)

Variable

PC 1

PC 2

PC 3

Starting frequency

0.285

0.358

0.258

First frequency peak

0.499

−0.259

0.000

Highest frequency peak

0.509

−0.245

0.010

End frequency

0.332

0.485

−0.173

Lowest frequency

0.350

0.538

−0.038

Total call length

−0.020

0.028

0.949

Range in frequency

0.421

−0.468

0.025

Eigenvalue

3.42

1.74

1.04

Explained variance

48.90

24.80

14.80

  1. Shown are the loadings of the first three principle components explaining 88.5% of the total variance.