Energy & Ecosystems
- Created by: beth-marie2511
- Created on: 20-06-16 22:43
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- Energy Transfer & Ecosystems
- Gross Primary Productivity
- The rate at which plants convert light energy into chemical energy
- Energy is lost when the plant transpires so less is available to the primary consumer
- Remaining energy is Net Primary Priduction
- NPP = GPP - R
- Ecology Calculations
- Photo-synthetic efficiency
- the quantity of energy incorporated into product divided by the quantity of energy falling onto the plant
- GPP = NPP + R
- Efficiency of Energy Transfer
- The rate at which energy passes into an animal at each trophic level
- Photo-synthetic efficiency
- Energy Flow through Consumers
- Only part of the NPP is transferred to primary consumers
- Efficiency of energy can be calculated by dividing the energy available after transfer by the energy available before the transfer and multiply by 100
- Community & Succession
- The change in structure and species composition of a community over time
- Any change in a community of organisms can cause a change in their habitat
- Any change in a habitat can also cause a change in the make-up of a community
- Gross Primary Productivity
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