Model                                     AIC       deltaAIC        AIC wgtModel Likelihood        no.Par.     -2*LogLike
psi(.),p(.)                             57.71           0.00         0.7286         1.0000              2          53.71
psi(.),p(rain)                          59.71           2.00         0.2680         0.3679              3          53.71
psi(.),p(site)                          68.48          10.77         0.0033         0.0046             15          38.48
