Tropical forests are important for maintaining life supporting mechanisms of the biosphere reserve. The floristic architecture and structure of these forests are sensitive to annual rainfall, its reliability and its seasonal distribution. While conditions of structural forests types are known, casual factors which are responsible for creation of variation at micro-level are unknown. Tropical forests are stable as well as fragile and the very character creates much of the variation that is needed for evolution of these ecosystems. These forests are more adapted to biological competition than...