Table 1.

Comparison of goodness of fit for the different models tested based on the DIC. (Smaller DIC values signify better fit.)

model	DIC
(I) fixed effect only
(A) climate factors only	4346
(B) climate factors and population density	4333
(C) climate factors, population density and IRS status	4324
(II) fixed effect and unstructured random effect
(A) climate factors only	4277
(B) climate factors and population density	4275
(C) climate factors, population density and IRS status	4272
(III) fixed effect, unstructured and structured random effect
(A) climate factors only	4256
(B) climate factors and population density	4256
(C) climate factors, population density and IRS status	4258