Types of food chain in ecosystem | Food chain types | 2020

Описание: Types of food chain in ecosystem-this video explains food chain types in nature.
#typesoffoodchaininecosytem#typesoffoodchain#foodchaintypes
Topics covered in this video are as follows:
1.Types of food chain
2.Types of food chain in ecosystem.
3.Examples of different types of food chain.
4.What is food chain in science?
5.Grazing food chain diagram.
6.Grazing food chain.
7.Parasitic food chain.
8.Parasitic food chain diagram.
9.Detritus food chain.
10.Detritus food chain diagram.
11.Explanation of various types of food chain.



Food____chain
A food chain refers to the order of events in an ecosystem, where one living organism eats another organism, and later that organism is consumed by another larger organism. The flow of nutrients and energy from one organism to another at different trophic levels forms a food chain.

The food chain also explains the feeding pattern or relationship between living organisms. Trophic level refers to the sequential stages in a food chain, starting with producers at the bottom, followed by primary, secondary and tertiary consumers. Every level in a food chain is known as a trophic__level .

The food chain consists of four major parts, namely:

The___Sun: The sun is the initial source of energy, which provides energy for everything on the planet.
Producers:
The producers in a food chain include all green plants. This is the first stage in a food chain. The producers make up the first level of a food chain. The producers utilize the energy from the sun to make food.

Producers are also known as autotrophs as they make their own food. Producers are any plant or other organisms that produce their own nutrients through photosynthesis. For example, green plants, fruits, phytoplanktons, small plants, and algae are some examples of producers in a food chain.

Consumers: Consumers are all organisms that are dependent on plants or other organisms for food. This is the largest part of a food web, as it contains almost all living organisms. It includes herbivores which are animals that eat plants, carnivores which are animals that eat other animals, parasites are those organisms that live on other organisms by harming them and lastly the scavengers, which are animals that eat dead animals’ carcasses.
Here, herbivores are known as primary consumers and carnivores are secondary consumers. The second trophic level includes organisms that eat producers. Therefore, primary consumers or herbivores are organisms in the second trophic

Decomposers: Decomposers are organisms that get energy from dead or waste organic material. This is the last stage in a food chain. Decomposers are an integral part of a food chain, as they convert organic waste materials into inorganic materials like nutrient-rich soil or land.
Decomposers complete a life cycle, as they provide nutrients to soil or oceans, that can be utilized by autotrophs or producers. Thus, starting a whole new food chain.

Food____Web:
Several interconnected food chains form a food web. A food web is similar to a food chain but the food web is comparatively larger than a food chain. Occasionally, a single organism is consumed by many predators or it consumes several other organisms. Due to this, many trophic levels get interconnected, and the food chain fails to showcase the flow of energy in the right way.

Types of Food Chain
There are mainly three types of food chains, namely detritus food chain and grazing food chain. Let’s look at them more closely:

Detritus food chain:
The detritus food chain includes different species of organisms and plants like algae, bacteria, fungi, protozoa, mites, insects, worms and so on. The detritus food chain begins with dead organic material. The food energy passes into decomposers and detritivores, which are further eaten by smaller organisms like carnivores. Carnivores, like maggots, become a meal for bigger carnivores like frogs, snakes and so on. Primary consumers like fungi, bacteria, protozoans, and so on are detritivores which feed on detritus.

Grazing food chain:
The grazing food chain is a type of food chain that starts with green plants, passes through herbivores and then to carnivores. In a grazing food chain, energy in the lowest trophic level is acquired from photosynthesis.
In this type of food chain, the first energy transfer is from plants to herbivores. This type of food chain depends on the flow of energy from autotrophs to herbivores. As autotrophs are the base for all ecosystems on earth, the majority of ecosystems in the environment follow this kind of food chain.

*patasitic food chain *
A parasitic food chain starts from herbivores but food energy passes from larger to smaller organism without outright killing as in case of predator food chain. Hence, the larger animals are considered to be the hosts and the smaller animals which fulfil their nutritional requirements from the hosts are considered as parasites.