Table 6 Comparison of models describing density dependence in the mean weight of female Ascaris lumbricoides

Baseline

A

${\mu }_W={\alpha }_1$

no density dependence

-

-

-

4671.33

B

${\mu }_W=\frac{{\alpha }_{1}n}{(1+{\alpha }_{2}n)}$

limitation

A vs. B

43.36

<0.0001

4631.97

C^†

${\mu }_W=\frac{{\alpha }_1{n}^{({\alpha }_3-1)}}{(1+{\alpha }_2{n}^{a_3})}$

facilitation preceding limitation

B vs. C

38.05

<0.0001

4597.91

1^st re-infection

A

${\mu }_W={\alpha }_1$

no density dependence

-

-

-

2314.29

B

${\mu }_W=\frac{{\alpha }_{1}n}{(1+{\alpha }_{2}n)}$

limitation

A vs. B

18.98

<0.0001

2299.31

C^†

${\mu }_W=\frac{{\alpha }_1{n}^{({\alpha }_3-1)}}{(1+{\alpha }_2{n}^{a_3})}$

facilitation preceding limitation

B vs. C

17.99

<0.0001

2285.32

2^nd re-infection

A

${\mu }_W={\alpha }_1$

no density dependence

-

-

-

1976.29

B

${\mu }_W=\frac{{\alpha }_{1}n}{(1+{\alpha }_{2}n)}$

limitation

A vs. B

12.36

0.0021

1967.93

C^†

${\mu }_W=\frac{{\alpha }_1{n}^{({\alpha }_3-1)}}{(1+{\alpha }_2{n}^{a_3})}$

facilitation preceding limitation

B vs. C

6.18

0.046

1965.75