Question

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.

1. With respect to this ecosystem, draw a pyramid for each biomass and a pyramid of number.

2. 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.

Answer 1

1. Pyramid of number
   
   
2. Pyramid of biomass