Name: Interactions Within Ecosystem
Uploaded: 2019-07-19
Duration: 7 min 4 s
Description: In this video, we will learn how organisms, abiotic and biotic factors interact in an environment and how trophic levels work. Watch till the end!

Question

What do you understand by the food web? Describe your own food web with the help of diagrammatic representation.

Accepted Answer

The food web is an important ecological concept. Basically, the food web represents feeding relationships within a community. It also implies the transfer of food energy from its source in plants through herbivores to carnivores. Normally, food webs consist of a number of food chains meshed together.

All species in the food webs can be distinguished into basal species (autotrophs, such as plants), intermediate species (herbivores and intermediate level carnivores, such as grasshopper and scorpion) or top predators (high level carnivores such as fox). These feeding groups are referred as trophic levels. Basal species occupy the lowest trophic level as primary producer. They convert inorganic chemical and use solar energy to generate chemical energy. The second trophic level consists of herbivores. These are first consumers. The remaining trophic levels include carnivores that consume animals at trophic levels below them. The second consumers (trophic level $3$ ) in the desert food web include birds and scorpions, and tertiary consumers making up the fourth trophic level include bird predators and foxes.

What do you understand by the food web? Describe your own food web with the help of diagrammatic representation.

Important Questions on Different Ecosystems

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