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Table 1 Effects of protein (P), carbohydrate (C), and their squares and product on body size in females and males

From: Sex-specific plasticity and the nutritional geometry of insulin-signaling gene expression in Drosophila melanogaster

Sexa

 

C

P

C2

P2

C × P

Female

βb

− 0.0044

0.0068

0.00001

− 0.00003

0.00001

 

Χ2

17.04***

0.02NS

21.45***

36.25***

4.80*

Male

βb

 

0.0081

 

− 0.00004

 
 

Χ2

 

11.408***

 

11.513**

 
  1. Type III Wald Chi-square test with associated P-values: NS non-significiant, P > 0.05, *P < 0.05, **P < 0.01, ***P < 0.001
  2. aFor each sex, we fitted a linear mixed effect orthogonal polynomial regression with replicate vial as a random factor and removed non-significant parameters
  3. bParameter values for the response surface are for the non-orthogonal polynomial regression to facilitate interpretation
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