The scope for biological, ecological, and many fields of geographical research in the Batu Apoi Reserve can thus be seen to be extremely large (see also Cranbrook and Edwards, 1994). Knowledge of the geomorphological and hydrological processes in undisturbed forest will improve the ability to predict direct and indirect physical effects of human activities in the forest, including the extremes of logging and flooding whilst biologists may be able to improve the present best estimates of total global biodiversity on the basis of results from this area. Rainforests are also being increasingly regarded as a potential rich source of medicinal products (United Nations Environment