Question

What will happen to an ecosystem if
a. All producers are removed;
b. All organisms of herbivore level are eliminated; and
c. All top carnivore population is removed

Answer 1

(a) Reduction in primary productivity. No biomass available for consumption by higher trophic levels/heterotrophs

(b) Increase in primary productivity and biomass of producers. Carnivores population will subsequently dwindle due to food shortage.

(c) Increase in number of herbivores, Overgrazing by herbivores, Desertification