Five Levels of Ecology

Table of Contents

Ecology is the scientific study of the distribution and abundance of life along with the interactions between different organisms and their natural environment. It is the branch of biology, and the name Ecology was derived from the Greek word, which refers to the house or the environment.

Explore more: Ecology 

What are the 5 Levels of Ecology?

Organism → Population → Community → Ecosystem → Biosphere



There are five Levels of Organization, and all levels are listed according to their size in increasing order – from small to large.


It is the lowest level of organization, which includes both unicellular and multicellular organisms. All the living species in this level exhibit all the characteristics required for the existence of life.

Read more about: Characteristics Of Organisms


A population is a group of individuals of a single species living together within a particular geographic area. They interbreed and compete with each other for resources.

Also Read: Population And Its Types


It refers to the several populations that interact and inhabit a common environment and are interdependent.


It is a set of all living species and abiotic components existing and interacting in a given area. There is an interaction with both living and nonliving components of the environment.

Also Read: Ecosystem


 It is the highest level of organization. It is the global ecological system which consists of all the living organisms and other factors which support life. The biosphere mainly refers to the part of the earth’s crust.

Also ReadBiotic And Abiotic

This was a brief introduction to the Ecological Levels of Organization in an ecosystem. Learn more in detail about levels of Ecology, Ecosystem, Our environment and other related topics at BYJU’S Biology

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