Effect

Df

Sum of squares

Mean Square

F statistic

P

% variance accounted for


Age of infection

1

1.5875

1.5875

2571

2 × 10^{16}

22.8

Stock/replicate

17

3.555

0.20915

339

2 × 10^{16}

51.1

Initial inoculum

1

0.0251

0.0251

41

2 × 10^{10}

0.4

First order interactions

Age of infection: stock

17

0.4306

0.02533

41

2 × 10^{16}

6

Age of infection: initial inoculum

1

0.0072

0.0072

11.7

0.00064

0.1

Stock: initial inoculum

14

0.0331

0.00236

3.8

1.8 × 10^{6}

0.05

Second order interactions

Age of infection: stock: initial inoculum

14

0.0254

0.00181

2.9

0.00018

0.3

Residual (Unaccounted) variance

2095

1.2934

0.00062
  
18.6

Total
 
6.9578
   
100

 Significant factors in ANCOVA model of gyrodactylid population growth rate ~ age of infection * stock * initial parasite inoculum