The study of microbial activities in the soil is known as soil biology. It plays an important role in understanding the characteristics of soil. The soil biota consists of mesofauna, macrofauna, microfauna and megafauna. This book provides comprehensive insights into the fields of soil biology and ecology. A number of latest researches have been included to keep the readers up-to-date with the global concepts in this area of study. For all readers who are interested in soil biology and soil ecology the case studies included in this book will serve as an excellent guide to develop a comprehensive understanding.