However, most of the limestone mines operated by SCG differ from classic stage-5 degradation in that they are usually surrounded by natural forest, which acts as a reservoir for seed-dispersing animals. This means that once wildlife can be attracted into the restored sites, there is a high probability that they will disperse seeds of natural forest trees into the sites and thus bring about more rapid recovery of vegetation species richness than would usually occur with Stage 5 Degradation sites. Thus, the forest restoration approach on limestone mines can include the framework species method, specifically designed to attract seed-dispersing animals.