Explaining variance of avian malaria infection in the wild: the importance of host density, habitat, individual life-history and oxidative stress

Table 3 Summary of AIC modelling of Plasmodium circumflexum infection in great tits

	Parameters*	Deviance	AICc	Δ AICc	ω
Model 1	3+5	207.98	216.14	0.00	0.07
Model 2	3	210.49	216.58	0.44	0.05
Model 3	1+3+5	207.27	217.52	1.38	0.03
Model 4	3+5+8	207.47	217.72	1.58	0.03
Model 5	3+5+10	207.57	217.82	1.68	0.03
Model 6	1+3	209.71	217.88	1.74	0.03
Model 7	3+4+5	207.73	217.98	1.84	0.03
Model 8	2+3+5	207.76	218.01	1.87	0.03
Model 9	3+8	209.98	218.14	2.00	0.02
Model 10	3+5+9	207.90	218.14	2.01	0.02
Null model	Intercept	226.63	230.67	4.34	0.01
* see code below for which parameters that are included
Averaged model parameters:
Parameters	Code	Coeff.	SE	Low CI	Upp CI	Rel. import.
(Intercept)		-1.48	1.76	-4.93	1.97
age(young)	1	0.07	0.21	-0.35	0.49	0.23
Cs	2	-0.01	0.05	-0.11	0.09	0.16
D(low)	3	-1.03	0.44	-1.90	-0.16	1.00
Spring date	4	0.00	0.02	-0.04	0.05	0.17
GSSG	5	-0.18	0.22	-0.61	0.24	0.59
Mass	6	-0.01	0.08	-0.16	0.15	0.14
Q(low)	7	0.01	0.16	-0.30	0.32	0.13
ROM	8	-0.02	0.08	-0.18	0.14	0.21
sex(male)	9	0.01	0.13	-0.25	0.28	0.13
tGSH	10	-0.02	0.09	-0.19	0.15	0.18

The top ten models are presented along with relative parameter importance (based on a model average with Δ AICc > 4).
cs clutch size, D breeding density, GSSG oxidized glutathione, Q habitat quality, ROM reactive oxygen metabolites, tGSH total glutathione, Rel. imp relative parameters importance, CI confidence interval (lower and upper), ω model weight.

ISSN: 1472-6785