3.4. Statistical Analyses
Plant survival data were analyzed using logistic regression. The variation explained by transplanting
season, soil amendments and species to plant survival during four growing seasons was assessed by
examining the change in residual deviance resulting from removing factors from the model. Model
fitting for survival was done using a logit link [48,49]. The response variable was survival at each
assessment date from October 2007 to August 2010 (0 = died, 1 = survived); explanatory variables