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Table 3 K-scores between the reference tree (mitochondrial DNA) and the trees with branches reflecting morphological change of the three studied character systems (observed K-scores).

From: Inferring speciation modes in a clade of Iberian chafers from rates of morphological evolution in different character systems

Comparison tree

Scale factor

K-score observed

No. random trees with K

lower than observed

Estimated p

Body morphospace

0.0203

0.2972

31

0.003

Paramere outline

0.1786

0.2929

947

0.095

Morphology (pars)

0.0179

0.2116

0

<0.0001

Morphology (dist)

0.3812

0.2007

0

<0.0001

  1. For the structural morphology, we calculated tree similarity for both optimisation methods, parsimony (pars) and distance (dist). Significance was tested through the use of a null distribution of 10,000 randomized trees (see Methods and Figure 4).