Forests are much more than a bunch of trees, contrary to popular belief. They are complicated operating systems of interrelated biological, physical and chemical elements, whose biological features have constantly evolved to preserve itself. These complex combinations of climate, soils, trees and plants result in many varied types of forests throughout the globe. Although trees are the main highlight of forest ecosystems, the vast variety of other creatures and abiotic elements in the forests indicate that there is also a need to study about these elements like soil nutrients and wildlife and consider these compounds when forming management plans. This book does not only provide information about trees, like other books, but also gives an insight into other components related to forests, which are usually left untouched in other texts, even though they are as important as trees to maintain balance in ecology. The book discusses structure and biodiversity and examines researches done on ecological structures.