Ecosystem - Structure and function
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The ecosystem is the structural and functional unit of ecology where the living organisms interact with each other and the surrounding environment. In other words, an ecosystem is a chain of interaction between organisms and their environment. The term “Ecosystem” was first coined by A.G.Tansley, an English botanist, in 1935.
Structure of the Ecosystem
The structure of an ecosystem is characterised by the organisation of both biotic and abiotic components. This includes the distribution of energy in our environment. It also includes the climatic conditions prevailing in that particular environment.
The structure of an ecosystem can be split into two main components, namely:
Biotic Components
Abiotic Components
The biotic and abiotic components are interrelated in an ecosystem. It is an open system where the energy and components can flow throughout the boundaries.
Functions of Ecosystem
The functions of the ecosystem are as follows:
It regulates the essential ecological processes, supports life systems and renders stability.
It is also responsible for the cycling of nutrients between biotic and abiotic components.
It maintains a balance among the various trophic levels in the ecosystem.
It cycles the minerals through the biosphere.
The abiotic components help in the synthesis of organic components that involves the exchange of energy.