Energy within an Ecosystem

1. VCE BIOLOGY
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Dr Lakshmi Sharma
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Ecosystems & Energy

2. Ecosystems - Energy

3. Discuss the movement of Energy
within an Ecosystem ?

4. The Sun
What is the sun’s
relationship to an
ecosystem?

5. The Sun
Producers
Necessary - Web & Food chains

6. Ecosystems - Energy Movement
PRIMARY PRODUCTIVITY
Producers - light energy into chemical energy

7. Primary Productivity
Which Ecosystems have high and low
producers ?

8. Primary Productivity
Low – Deserts High - Rainforests

9. How is Energy lost in a
food chain ?

10. The Ecosystem - Energy Loss
Herbivores >10% of the plants
Energy for movement
Non-Digestible
Energy Loss

11. Carnivores
Digestible food matter
Less energy here compare herbivore

12. Remember !
For each Organism type:
Reduction in tissue total mass as one ascends the
food chain.
Reduction in
total mass of
tissue

13. Hope You Enjoyed The Lesson!
Any Questions ???