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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
“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.
Distinguish between a food chain and a food web.
Describe with examples of pyramids of number and biomass.
Explain energy pyramid
Which organisms constitute the last trophic level?
“The pyramid of biomass is not always upright.” Explain the statement.
'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.
Secondary consumers are __________.
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.
Pyramid of energy in grassland and pond ecosystem is always ______.
In an aquatic ecosystem, a mollusc typically belongs to-
Which of the following statements is not correct?
What does the base tier of the ecological pyramid represent?
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.
Give a scientific reason:
The pyramid of energy is always upright.
| In a forest ecosystem, a large population of insect feeds upon a banyan tree. Several small birds feed upon these insects. The small birds are fed upon by big-sized birds. |
- With respect to this ecosystem, draw a pyramid for each biomass and a pyramid of number.
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If 20,000 Kcal energy is available at the level of insects, calculate the amount of energy available at the level of big-sized birds.
Who developed the concept of ecological pyramids, and in which year?
What does a pyramid of numbers represent?
What does a pyramid of biomass represent?
What does a pyramid of energy represent?
Which food chains have more available energy?
Which statement expresses the general pattern of energy across trophic levels?
Which statement is a limitation of ecological pyramids?
