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प्रश्न
Give diagrammatic representation of pyramid of numbers.
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उत्तर
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संबंधित प्रश्न
Explain energy pyramid
Give an example of an ecosystem that shows an inverted pyramid of numbers.
Distinguish between the upright and inverted pyramid of biomass.
In a tree ecosystem the pyramid of numbers is:
Which one of the following is not used for construction of ecological pyramids?
Pyramid of biomass in terrestrial ecosystem shows sharp decline in
(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.
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.
| 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.
Which ecosystem shows an inverted biomass pyramid?
