Table 1 Models fitted to assess the effects of the reproductive variables

Null

Model_0

12,079

Additive

Model _ 1a

X

12,003

Model _ 1b

X

12,030

Model _ 1c

X

12,049

Model _ 2a

X

X

11,489

Model _ 2b

X

X

11,531

Model _ 2c

X

X

11,550

Model _ 3a

X

X

X

11,450

Model _ 3b

X

X

X

11,472

Model _ 3c

X

X

X

11,524

Model _ 4

X

X

X

X

11,447

Multiplicative

Model _ 5a

X

X

X

11,440

Model _ 5b

X

X

X

11,439

Model _ 5c

X

X

X

11,443