Definition and concept of ecosystem

Ecosystem

   

An ecosystem is a structure 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 characterized 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 be flow throughout the boundaries.

Biotic components

Biotic components refer to all living components in an ecosystem.Based on nutrition.biotic components can be categorised into autotrophs , heterotrophs and saprotrophs or decomposers.

Abiotic components

Abiotic components are the non living components of an ecosystem.It includes aur,water,soil, minerals, sunlight, temperature, nutrients,wind etc.