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Question : Spindle shaped pyramid of number is noticed in forest ecosystem. Give Reasons. |
| Answer» Solution :In a forest ecosystem the pyramid of number is spindle in shape, it is because the BASE `(T_(1))` of the pyramid occupies large sized TREES (Producer) which are lesser in number. Herbivores `(T_(2))` (Fruit eating birds, elephant and deer) occupying second trophic level, are more in number than the producers. In final trophic level `(T_(4))`, tertiary consumers (lion) are lesser in number than the SECONDARY consumer `(T_(3))` (fox and SNAKE). | |