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Table 3 A: GLMM exploring the effects of Internal Relatedness (IR), pairwise relatedness (r), and MHC allele-sharing (D) of the social male on the female likelihood to engage in extra-pair fertilizations, B: Relative variable importance given by Akaike weights (ΣAIC ω )

From: Females tend to prefer genetically similar mates in an island population of house sparrows

A.

Variables

Model

K

AICc

ΔAICc

 

Brood type (broods with extra-pair chicks vs. broods with no extra-pair chicks)

Null

1

90.6

0.00

 

(n = 66)

D

2

91.4

0.78

  

IR

2

92.0

1.37

  

r

2

92.0

1.39

  

D + r

3

92.5

1.88

  

D + IR

3

93.1

2.53

  

IR + r

3

93.4

2.86

  

Year

3

94.3

3.74

  

D + IR + r

4

94.4

3.8

  

D + year

4

95.5

4.89

  

IR + year

4

95.6

5.02

  

r + year

4

95.8

5.18

  

D + r + year

5

96.7

6.08

  

IR + r + year

5

97.2

6.61

  

D + IR + year

5

97.2

6.62

  

D + IR + r + year

6

98.6

8.03

B.

Variables

Source of variation

ΣAIC ω

  
 

Brood type (broods with extra-pair chicks vs. broods with no extra-pair chicks)

D

0.39

  
  

r

0.34

  
  

IR

0.31

  
  

Year

0.13

  
  1. K = number of parameters.