Table 2.

Experiment 2: minimal models for assays of survivorship, fecundity and IgG1 response. ((a) Random effect; line, σ²=0.0255. (b) Random effect; line, σ²<0.01. (c) Random effect; line, σ²=0.141.)

fixed effects	coefficient	95% CI	p-valuea
(a) survivorship
intercept	3.25	2.90, 3.55	—
time (late)	−0.514	−0.970, −0.0519	<0.05
(b) fecundity
intercept	4.03	2.15, 5.93	—
time (late)	2.85	0.00496, 5.69	<0.05
treatment (slow)	−3.81	−6.35, −1.32	<0.01
log(parasitic females)	0.537	−0.0524, 1.11	n.s.b
log(IgG1+1)	−1.25	−2.18, −0.324	<0.05
treatment (slow): log(parasitic females)	0.800	0.0612, 1.54	<0.05
log(parasitic females):time (late)	−1.798	−2.75, −0.847	<0.001
treatment (slow): log(IgG1+1)	1.45	0.499, 2.44	<0.01
(c) parasite-specific IgG1 concentration (μg ml−1)
intercept	−0.0326	−0.458, 0.382	—
time (late)	0.678	0.255, 1.13	<0.01
treatment (slow)	0.662	0.199, 1.15	<0.01

^ap-values in all the cases are estimates based on Monte Carlo Markov chain samples.

^bThis term is included as a main effect since it is involved in significant higher-order interactions.