Avian roosting behavior influences vector-host interactions for West Nile virus hosts

Parasites & Vectors

Table 2 Comparison of models to explain variation among species and over time in roost size using Akaike’s Information Criterion (AIC), ΔAIC, Akaike weights ( ω _I )

Model	AIC	ΔAIC	ω _i	K
SpeciesJdate + SpeciesJdate^0.5	16694	0	1	12
Species + Jdate	16965	271	0	9
Jdate + Jdate^0.5	17135	441	0	3
Species*Jdate	22144	5450	0	10
Species + Jdate + Jdate^0.5	22266	5572	0	10
Jdate	22418	5724	0	2
Species	41269	24575	0	8
Intercept	41373	24679	0	1

*denotes an interaction between two model parameters.
Parameters in the model include linear and nonlinear time components (Jdate is the Julian date or day of the year, with January 1 = 1). K is the number of parameters in the model.

ISSN: 1756-3305