Question

Why is a food web more stable than a food chain?

Answer 1

The food web is a network of food chains that are interconnected at various trophic levels so as to form a number of feeding connections amongst members of a biotic community. A food chain is a linear sequence of organisms through which food and its contained energy pass, with earlier members of the sequence, becoming food of the later member of the sequence. A secluded food chain is always at a risk of being damaged with a major effect on the ecosystem as well. Suppose the tiger population increases. Its prey population of say deer will decrease rapidly resulting in the non-availability of food to tigers, their starvation, and hence, death. However, in a food web, each predator has a choice to feed on different types of prey.
The concept of the food web or non-dependence on a single source helps in case of adversity.