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प्रश्न
What are the shortcomings of ecological pyramids in the study of ecosystems?
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उत्तर
The shortcomings of ecological pyramids in ecosystem study are that they assume a simple food chain and do not account for complex food webs. They also do not consider species that may belong to two or more trophic levels at the same time, and they exclude decomposers despite their important role in ecosystems. Thus, ecological pyramids provide only a limited view of trophic structure and energy flow in ecosystems.
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संबंधित प्रश्न
Give diagrammatic representation of pyramid of numbers.
“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.
Why the pyramid of energy is always upright? Explain.
In an ecosystem dominated by trees, the pyramid (of numbers) is ______ type.
Distinguish between a food chain and a food web.
In a food chain, the herbivores are represented by
(A) producers
(B) primary consumers
(C) secondary consumers
(D) decomposers
With reference to the levels of an organisation, differentiate between living organisms and non-living objects.
Answer the following question.
What is an ecological pyramid? Compare the pyramids of energy, biomass, and numbers.
Write any two limitations of ecological pyramids.
'The pyramid of energy is always upright.' Explain
Explain with the help of labelled diagrams, the difference between an upright pyramid of biomass and an inverted pyramid of biomass.
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.
Which ecosystem has the maximum biomass?
Pyramid of energy in grassland and pond ecosystem is always ______.
Which one of the following is not used for construction of ecological pyramids?
Which of the following organism form the decomposers?
Which one of the following statements for pyramid of energy is incorrect, whereas the remaining three are correct?
Pyramid of numbers is ______.
Name any two organisms which can occupy more than one trophic level in an ecosystem.
Organisms at a higher trophic level have less energy available. Comment.
The number of trophic levels in an ecosystem are limited. Comment.
What are the three types of ecological pyramids? What information is conveyed by each pyramid with regard to structure, function and energy in the ecosystem?
(a) Given below is a pyramid of biomass in an ecosystem where each bar represents the standing crop available in the trophic level. With the help of an example explain the conditions where this kind of pyramid is possible in nature.
(b) Will the pyramid of energy be also of the same shape in this situation? Give a reason for your response.
(a) Draw a pyramid of numbers where a large number of insects are feeding on the leaves of a tree. What is the shape of this pyramid?
(b) Will the pyramid of energy be also of the same shape in this situation? Give a reason for your response.
Describe pyramid of energy with the help of diagram.
