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In a forest ecosystem, a single tree (producer) supports many herbivores, making the pyramid of number inverted.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Ecological Pyramids - Number Biomass Energy
In a forest ecosystem, a few large trees (producers) support a larger number of herbivores, causing an inverted pyramid of number.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Ecological Pyramids - Number Biomass Energy
In a forest ecosystem, the pyramid of biomass is always upright because the biomass of producers is greater than that of consumers.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Ecological Pyramids - Number Biomass Energy
Trees usually contain the greatest biomass in forests because they accumulate woody tissue over decades or centuries. Their large trunks, branches, and roots store carbon far longer than the bodies of herbivores, carnivores, or parasites. Biomass is standing mass, not productivity: a forest can retain a massive producer stock even when annual net production is modest. Consumers may have rapid turnover, but respiratory losses and incomplete transfer prevent their standing biomass from approaching the long-lived plant reservoir. Energy and matter should not be conflated: nutrients can cycle amon
Ref: Fundamentals of Ecology, Odum & Barrett, 5th Ed., Ch. 3
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