Hello,
I am trying to estimate a Poisson Mark-Resight Model. However, I am getting obviously garbage U estimates.
Following the recommendations in the Book, I tried a range of initial values and options on the "run" window. However, I continue to get similar garbage estimates. I also tried fixing sigma to a value from a similar but different experiment, and got a credible U estimate, but a much higher deviance.
Anything else I can try?
--
Or perhaps my data is insufficient...
My data: 100 individually-identifiable marked individuals, 27 of which were resighted at least once (and up to 22 times) during the single resight period. 367 unmarked individuals were observed.
Thanks!
Harold