Environment & Ecosystem (Unit 1)
Environment & Ecosystem Part 1: Ecosystems and how they work (Topics Covered: Types of Eco-Systems: Geo-sphere, Biosphere and Hydrosphere; Major issues of Biodiversity, Conservation of Bio-Diversity ) Ecology Ecology is the scientific study of the distributions, abundance and relations of organisms and their interactions with the environment. Ecology includes the study of plant and animal populations, plant and animal communities and ecosystems. Ecosystems describe the web or network of relations among organisms at different scales of organization. Concept of an Ecosystem An Ecosystem is a complex set of relationship among the living resources, habitat and residents of that area. It includes plants, trees, animals, birds, insects, water, soil and people. Ecosystems vary greatly in size and the elements that make them up, but each is a functioning unit of nature. Everything that lives in an ecosystem is dependent on other species and element that ar...