Table 2

Effect test for variation in larval yolk sac size over time.

Model term

Df

Sum of sq

F-ratio

P-value


Treatment

1

8.33

28.96

<0.0001

Deme

3

10.25

23.77

0.0022

(ln°d)2

2

381.10

1325.30

<0.0001

Treatment*Deme

3

4.31

4.99

0.0001

Treatment*(ln°d)2

6

10.96

19.06

<0.0001

Deme*(ln°d)2

2

8.66

10.04

<0.0001

Treatment*Deme*(ln°d)2

6

0.90

0.52

0.8997

Replicate [Deme, Treatment]

12

1.929


Summary test statistics for a linear mixed model with ln(yolk sac area) as response variable. Replicate is random effect. Adjusted R2 = 0.713, N = 713. The parameter estimates are available in table A1 in Additional file 1. Square brackets indicate the nesting structure. Layout details: The (ln°d)2 notation indicates the total polynomial effect (i.e., ln°d + (ln°d)2) was fitted as a orthogonal polynome, an asterisk between model terms indicates interaction effect, and Df indicates degrees of freedom for the relevant model term.

Thomassen et al. BMC Evolutionary Biology 2011 11:360   doi:10.1186/1471-2148-11-360

Open Data