[R] Log-linear model with correlation structure

[Christof Bigler]

Dear list,

I have a time series of frequency data (number of dead trees in each 
year), including zero frequencies. With a continuous predictor variable 
(climate index), I want to assess the effect on the number of dead 
trees.

Is there a log-linear regression model that includes a serial 
correlation structure to model temporal dependence? I think of an 
autoregressive model, such as in the functions lme or gls in 
library(nlme).

Any help is appreciated!

Christof