This book brings together chapters related to sustainable utilization of biological resources, including in situ and ex situ conservation of rare, endangered, and threatened plants. The title also gives a special emphasis on marine sponges and mangrove ecosystems, which are two important untapped potential resources of the marine ecosystem and play a key role in maintaining the marine ecosystem. There is an urgent need for the conservation, exploration and utilization of bioresources for the growth and survival of human beings. Due to the significant reduction in biological resources, many...