Ecosystem, Biodiversity and Conservation
Ecosystem, Biodiversity and Conservation Ecosystem Concept of Ecosystem Ecosystem is a functional unit of nature in which living organisms interact with one another and with the non-living environment. The term ecosystem was introduced by A. G. Tansley in 1935 . An ecosystem includes: Biotic components – living organisms. Abiotic components – non-living physical and chemical factors. Examples: Forest Pond Lake River Grassland Desert Ocean Agricultural ecosystem Characteristics of an Ecosystem Interaction between biotic and abiotic components Plants, animals and microorganisms interact with soil, water, air, sunlight and temperature. Energy flow Energy mainly enters an ecosystem through sunlight. It flows from producers → consumers → decomposers. Nutrient cycling Nutrients such as carbon, nitrogen, phosphorus and wa...