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Table 5 Minimal adequate models explaining the effects of species, sexa, and treatment on the body composition of three Ceratitis species estimated using general linear models

From: Physiological mechanisms of dehydration tolerance contribute to the invasion potential of Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) relative to its less widely distributed congeners

Dependent variable SS df F P
Carbohydrates     
 Intercept 15.104 1 42.484 <0.001
 Treatment 8.977 2 12.625 <0.001
 Initial mass 2.254 1 6.338 0.016
 Residuals 14.932 42   
Glycogen     
 Intercept 0.001 1 1.010 0.321
 Species 0.005 2 3.140 0.053
 Treatment 0.012 2 7.323 0.002
 Initial mass 0.013 1 15.968 <0.001
 Species × Treatment 0.010 4 2.868 0.034
 Residuals 0.036 43   
Lipids     
 Intercept 0.008 1 5.982 0.019
 Species 0.007 2 2.734 0.077
 Sex 0.002 1 1.733 0.195
 Treatment 0.037 2 13.891 <0.001
 Initial mass 0.011 1 8.554 0.006
 Species × Sex 0.007 2 2.758 0.075
 Species × Treatment 0.015 4 2.907 0.033
 Residuals 0.054 41   
Proteins     
 Intercept 0.013 1 0.131 0.719
 Species 1.393 2 7.068 0.002
 Sex 0.096 1 0.974 0.329
 Treatment 0.301 2 1.527 0.229
 Initial mass 1.098 1 11.145 0.002
 Species × Sex 0.540 2 2.740 0.076
 Sex × Treatment 0.478 2 2.422 0.101
 Residuals 4.2372 43   
  1. Initial body mass was included as a covariate to account for body size. Significant effects (P < 0.05) are indicated by bold type
  2. aSex was not included in the initial model for carbohydrates due to low sample size for males in some treatments