Book excerpt: This book on Wildlife Ecology is designed to be used as a textbook for college and university students for courses on Wildlife Ecology, Wildlife Management and Conservation Biology. Examples are drawn from the tropics where biodiversity is rich, and where natural habitats and wildlife are seriously affected by the increasing human population. Applications of remote sensing and geographic information system, and camera trapping of wild and elusive animals are introduced to students to equip them to be able to take up professional career in wildlife research, management and conservation, using modern tools and trends in ecological sciences.