Example 4 : The common lizard Lacerta vivipara Capture-recapture data, density manipulation. (data from Pilorge 1988) Files : LV.IN ( sex-variable : 1=, 2=, file for program CR) LV.RH (capture histories for program CR) LV.REL (file for program Release) LVD.SUR ( data file for program SURGE) LVDM.SUR ( data file for program SURGE) LVI.SUR LVIM.SUR Data Analysis in : Lebreton, J.-D., K. P. Burnham, J. Clobert, and D. R. Anderson. (1992) Modeling survival and testing biological hypotheses using marked animals: case studies and recent advances. Ecol. Monogr. 62:67-118.