Food Chain Definition Ecology

Definition a feeding hierarchy in which organisms in an ecosystem are grouped into trophic (nutritional) levels and are shown in a succession to represent the flow of food energy and the feeding relationships between them. In scientific terms, a food chain is a chronological pathway or an order that shows the flow of energy from one organism to the other. Trophic level refers to the sequential stages in a food chain, starting with producers at the bottom, followed by primary, secondary and tertiary consumers.

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Trophic levels and efficiency of energy transfer.

Food chain definition ecology. There are no decomposers in a food chain. The food chain starts with the producer or plants that convert solar energy into the usable form of energy (food) by the process of photosynthesis which is then eaten by consumers. Energy is not created or destroyed.

A food chain represents only one dimension of food or energy flow through an ecosystem and shows a simple relationship between components. A food web can be described as a who eats whom diagram that shows the complex feeding relationships in an ecosystem. A food chain begins with a producer, usually a green plant or alga that creates its own food through photosynthesis.

Photosynthesis is only the beginning of the food chain. Energy flow is the flow of energy through living things within an ecosystem. Trees and shrubs → giraffe → lion ().

Food chains and food webs describe feeding relationships. The arrow means 'is eaten by', and shows the flow of matter and energy along the food chain. Food chain is a series of groups of different organisms called trophic level in which there is repeated eating and eaten by so as to transmit the food energy is known as food chain and trophic level acts as food link in a food chain.

An ecosystem consists of many interrelated food chains. A food chain almost always begins with a green plant (producer) which is eaten by an animal (consumer). The food chain also explains the feeding pattern or relationship between living organisms.

The arrows used to link each organism to the next represent the direction of energy flow.they always points towards the ‘eater’, and away from the plant. Every level in a food chain is known as a trophic level. Biology is brought to you with support from the amgen foundation.