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THE ECOLOGICAL PYRAMID - Coggle Diagram
THE ECOLOGICAL PYRAMID
DEFINITION
represents the number of organism, energy relationships and biomass of an ecosystem
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PYRAMID OF BIOMASS
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An upright pyramid of biomass in which the combined weight of producers is larger than the combined weight of consumers
There is some pyramid of biomass that is inverted in which the combined weight of producers is smaller than the combined weight of consumers. Eg : aquatic ecosystem
at any particular time, the biomass of zooplankton is much greater than the mass of the phytoplankton
This results from the fact that most of the phytoplankton have life expectancy for few days whereas the zooplankton might live longer
The phytoplankton can support the zooplankton because the turnover rate for phytoplankton is very rapid (rapid replacement by reproduction)
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PYRAMID OF ENERGY
Represents the total amount of energy consume by each trophic level and how much energy is lost as heat at each level
The pyramid of energy for same ecosystem shows that the rates of energy flow decrease at each hinger level, as some energy lost as heat
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Most of the energy lost in form of heat (cellular respiration), growth and reproduction, digestion, excretion and death
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