Summary of model fitting results for the nested set of factors and four different families of distributions.

H+V+T is main effects only, H:V+H:T+V:T is main effects and 2-way interactions, and H*V*T is main effects, 2-way and 3-way interactions. Po = Poisson, Q-Po = Quasi-Poisson, NB = Negative Binomial, ZINB = Zero Inflated Negative Binomial. The Var entries refer to the variance function for the distribution families. The Signif entries denote the significant factor effects, with superscripts ‘,*, and ** denoting significance at the 0.10, 0.05, and 0.01 levels, respectively. The reported AIC value for the Q-Po case is the Quasi-AIC value.