A food web is a comprehensive, interconnected diagram that illustrates how species in a particular ecosystem obtain their food.

– The idea of a food web, which used to be called a food cycle, is usually given to Charles Elton, who first wrote about it in his 1927 book Animal Ecology.

– People think of him as one of the people who started modern ecology, and his book is an important one. In this book, he also talked about important ecological ideas like niche and succession.

– Organisms are placed in a food web based on their trophic level. A living thing’s trophic level is based on how it eats and shows where it fits in the food web as a whole.

– Autotrophs and heterotrophs are the two main types of organisms. Heterotrophs, on the other hand, don’t make their own food. There are five main trophic levels within this broad term: primary producers, primary consumers, secondary consumers, tertiary consumers, and apex predators.

– A food web shows how the different levels of trophic levels in different food chains connect to each other and how energy moves through the different levels of trophic levels in an ecosystem.

It can be viewed as a "who eats whom" diagram that illustrates how the various species in an ecosystem obtain their food.

Food webs are important to study because they illustrate how energy passes across an ecosystem.

In addition, it helps us determine how poisons and other contaminants accumulate in a particular ecosystem.

Mercury bioaccumulation can be observed in areas such as the Florida Everglades and the San Francisco Bay.

Food webs can also be used to explore and explain the relationship between the diversity of species and their position in the food chain.

They may also reveal significant information regarding the interactions between invasive and native species in a given ecosystem. 

Types of Food Webs

1. Connectance Food Webs

2. Interaction Food Webs

3. Energy Flow Food Webs

4. Fossil Food Webs

5. Functional Food Webs