Trophic Structure of Ecosystems

Trophic Structure of Ecosystems

1. Trophic Structure of Ecosystems Where does all life on Earth get energy from? B y Achu dhan.D

2. Energy flows to and from the Earth. Nutrients cycle within Earth.

3. What is  TROPHIC STRUCTURE ? A  characteristic  feature of any  ecosystem , measured and described either in terms of the  standing crop  per unit area, or energy fixed per unit area per unit time, at successive trophic levels. It can be shown graphically by the various ecological pyramids,

4. Trophic  Levels. All organisms in an  ecosystem  can be placed in  trophic  levels depending on what energy source they rely upon and how they provide energy for other organisms in the food web . Trophic structure  refers to the way in which organisms use food resources. to get their energy for growth and reproduction, and is often refered to in. simple terms as the “food web” or “food chain”. A healthy marine ecosystem. consists of  trophic levels that have complex linkages to form a food web.

5. What is  TROPHIC LEVEL ? broad class of  organisms  within an  ecosystem  characterized by mode of food supply. The first trophic level comprises the green plants, the second is the herbivores and the third is the carnivores which eat the herbivores.

6. Trophic structure, The amount of  energy  at each  trophic level  decreases as it moves through an ecosystem. As little as 10 percent of the  energy  at any  trophic level  is  transferred to the next  level ; the rest is lost largely through metabolic processes as heat.

7. What is the flow of energy? The amount of  energy  at each  trophic level  decreases as it moves through an ecosystem. As little as 10 percent of the  energy  at any  trophic level  is  transferred to the next  level ; the rest is lost largely through metabolic processes as heat.

8. Energy flow and tropical levels

9. Thank you