Models of survival and resighting probabilities for bearded vultures in the Spanish Pyrenees.

Time and age were introduced as covariates, either as changes without precise patterns (noted by t and a, respectively) or changes with a trend (noted by T and A, respectively). Effects of artificial feeding sites on survival (noted by AFS) were introduced as an individual covariate. Models are ranked following QAICc values. np = number of identifiable parameters; DEV = deviance of each model; QAICc = corrected quasi-AIC value for avoiding bias in small samples; ΔQAICc = difference of QAICc value with respect to the best model; WQAICc = weight of each model with respect to the bulk of models tested. “·”, “*”and “+” represent mean constancy, interaction and additive effects, respectively. In bold, the final selected model, with ΔAICc<4 relative to the rest of models.