Hello all,
I´ve been running standard CJS analyses on capture-recapture bird data from tropical Guatemala, and when looking at the results, I noticed that the deviances were negative, for all models and different species. I'm not sure how to interpret these, since I thought that deviances were always positive. The AICc´s and model results, i.e., parameter and point estimates looked fine though (no ridiculous values for estimates and standard errors). The only thing that is noticeable for my analysis is the capture histories file: data comes from different sites that were sampled on different years in the 1992-2019 interval, so the capture histories files has a lot of "."'s (for years with no data). Otherwise, everything else looks fine.
Many thanks for advice and suggestions.
Alexis