Pyramid of number in tee ecosystem- Pyramid of number shows biotic potential of an ecosystem.
- The number of members of any particular species in a favorable
condition is called as their biotic potential. - When the number of the members of any species increases then it is
called as population explosion.
15.4 (d) Pyramid of Biomass :
The biomass of each trophic level is shown by this pyramid. Mostly
these pyramids are also upright (erect). e.g. Tree ecosystem.- Pyramid of biomass in aquatic ecosystem is inverted,
because in this producers are micro organisms and their biomass is
lesser than other trophic levels. - Pyramids of biomass show the standing crop of ecosystem.
It means total amount of living matter at a particular time in an
ecosystem is called as standing crop. - Total amount of nonliving matter in an ecosystem is called as
standing state.
15.4 (c) Pyramid of Energy :
It always remains erect, because flow of energy is not cyclic. i.e. during
the flow of energy at each trophic level goes on decreasing.- According to the 10% law of Linderman the 90% part of