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How to take into account heterogeneity in sampling effort in a binomial glm (presence absence) ? Edit I want to link species presence with environmental variables. But, species data come from camera trapping and camera traps didn't work the same total period (some cameras worked during 50...

Why stepAIC gives a model with unsignificant variables in the summary(model) ? I would like to know what environmental variables allows to explain the presence of several species (binomial glm). I used a stepAIC procedure to select the best model. But when I do a summary(model), some...