Energy flow in ecosystem Upsc

Energy flow in an ecosystem

Energy flow is the flow of energy through various living organisms within an ecosystem. Every organism can be organized as a producer and consumer. The plants are producers and their energy is consumed by primary consumers (goat, cow, deer etc) and the primary consumer is consumed by secondary or tertiary consumers such as Lion, tiger etc.

Finally, when the tertiary consumer dies they are decomposed by microbes. The energy travels from plant to microbes and microbes to plants. This cycle of transfer of energy is called Energy Flow.

Energy flow in ecosystem Upsc
Energy flow in the ecosystem Upsc By WDiment – Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=105570493

These producers and consumers can be organized into the food chains and food web. These food chains are organized into trophic pyramids

Energy flow is unidirectional

The arrows in the food chain show the energy flow is unidirectional, the head of the arrow indicates the direction of energy flow. In each step, the energy is lost in the form of heat.

Energy flow is unidirectional
Energy flow is unidirectional

* * All the Notes in this blog, are referred from Tamil Nadu State Board Books and Samacheer Kalvi Books. Kindly check with the original Tamil Nadu state board books and Ncert Books.