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प्रश्न
Write any two limitations of ecological pyramids.
Ecological pyramids are widely accepted but they still have some limitations. Write any two limitations.
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उत्तर १
Limitations of ecological pyramids:
- It never takes into account the same species belonging to two or more trophic levels.
- It assumes a simple food chain, which never exists in nature.
उत्तर २
- Exclusion of Decomposers: Decomposers, which are essential for nutrient recycling, are often omitted from ecological pyramids. An inaccurate depiction of energy flow may result from excluding decomposers.
- Over-Simplification: Because they depict only linear linkages, ecological pyramids often oversimplify food webs. In actuality, organisms may interact in more complex ways and belong to numerous trophic levels, which are not represented by a straightforward pyramid structure.
Notes
Student can refer to the provided solution based on their preferred question or marks.
संबंधित प्रश्न
“It is often said that the pyramid of energy is always upright. On the other hand, the pyramid of biomass can be both upright and inverted.” Explain with the help if examples and sketches.
In an ecosystem dominated by trees, the pyramid (of numbers) is ______ type.
In a food chain, the herbivores are represented by
(A) producers
(B) primary consumers
(C) secondary consumers
(D) decomposers
Which organisms constitute the last trophic level?
Give an example of an ecosystem that shows an inverted pyramid of numbers.
Give an example of an ecosystem that shows an inverted pyramid of biomass.
Distinguish between the upright and inverted pyramid of biomass.
What are the shortcomings of ecological pyramids in the study of ecosystems?
Write a short note on pyramid of numbers and pyramid of biomass.
The biomass of a standing crop of phytoplankton is 4 kg/m2, which supports a large standing crop of zooplankton having a biomass of 11 kg/m2. This is consumed by small fishes having a biomass of 25 kg/m2, which are then consumed by large fishes with a biomass of 37 kg/m2.
Draw an ecological pyramid indicating the biomass at each stage and also name the trophic levels. Mention whether it is an upright or inverted pyramid.
