Trophic pyramid
Learning objectives
- Understand the different ways to quantify the tropic relationships of a food chain
An ecological pyramid is a quantitative representation of the trophic levels of a food chain.
There are three types of ecological pyramids:
- Pyramid of numbers
- Pyramid of biomass
- Pyramid of energies
The detrivores and decomposers are not always represented in these pyramids but they play an essential role in the cycle of material.
The pyramid of toxins shows the bioaccumulation in individual organisms in a food chain. Its shape is inversed.
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