Explain the concept of pyramid of numbers.

Explanation

Definition. AN ecological pyramid is a graphical representation of an ecological parameter, like number or biomass or accumulated energy at different trophic levels in a food chain in an ecosystem.
Pyramid of number . Pyramid is the graphical representation of number of organisms present at each trophic level in a food chain of a particular ecosystem. When the number of organisms at successive levels are calculated mathematically and plotted, they assume the shape of a pyramid.

This is called a pyramid of number . The base represent the number of producers where as tip is represented by top consumers , inverted pyramids can also be formed.
In the given pyramid of number number of producers will be far more than any other level. The number of consumers will be comparatively less than herbivores. You can guess if number of carnivores increase and exceeds the herbivores then what will be the result
Fig. shows inverted pyramid and there you can see producer is one tree and dependents like primary and secondary consumers are many parasite insects of birds will be definitely more than the number of birds.