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Table 8 Role of climate and competition in driving morphological variation

From: Climate-driven diversification in two widespread Galerida larks

   Size (PC1)
Factor df sgn(t) type III F P-value
species complex (sc) 1 - 5.22 0.043
competition (comp) 1 + 15.36 0.0024
aridity 1 + 2.53 0.14
Interaction (sc × comp) 1 - 6.08 0.031
Interaction (aridity × comp) 1 + 5.49 0.039
  1. ANOVA table presenting factors included in the best regression model for body size (PC1): n = 17 observations; R2 = 0.91; F5,11 = 21.23, P < 0.0001. For the sc and sc × comp effects, the sign of Student's t (sgn(t)) is given here with the Thekla lark complex as a standpoint. For body shape (PC2), no factor was included in the best model.