Question

Which one of the following is not a limitation of ecological pyramids?

• A. Saprophytes are not given any place of ecological pyramids
• B. It assumes a simple food chain, that almost never exists in nature
• C. It accommodates a food web
• D. It does not take into account the same species belonging to two or more trophic levels

Answer 1

The Correct Option is C

Ecological pyramids offer a generalized depiction of energy or biomass transfer within an ecosystem. Their inherent limitations are as follows:

• Absence of Decomposers: Saprophytes, vital for nutrient cycling, are typically omitted from ecological pyramid representations.
• Oversimplified Food Chains: Ecological pyramids often illustrate linear food chains, whereas actual ecosystems feature intricate food webs.
• Inability to Represent Species at Multiple Trophic Levels: Species that can function at various trophic levels (e.g., omnivores) are not accommodated by the standard ecological pyramid format. 

The assertion “It accommodates a food web” is not a limitation; rather, it would represent an enhancement to ecological pyramid models.