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Ecosystem

UK //ˈiːkəʊsɪstəm//US //ˈiːkoʊˌsɪstəm//

Definition

A community of interacting organisms and their physical environment.

In simple words: A community of living things and their environment.

Examples

The coral reef is a delicate ecosystem that supports a diverse range of marine life.
An ecosystem can be as small as a pond or as large as a forest.
Climate change is having a severe impact on many ecosystems around the globe.
In a rainforest, the ecosystem is incredibly complex and interconnected.
Urban areas can form their own unique ecosystems, adapted to human influence.

Usage notes

Used in discussions about biology, ecology, and environmental science. Avoid in casual conversation unless the topic is related.

Grammar pattern

countable noun

Memory hint

Think of 'eco' as in 'economy' - a balanced system of nature and living things.

Collocations

biodiversity in an ecosystem
healthy ecosystem
ecosystem services
marine ecosystem
terrestrial ecosystem

Synonyms

environment
biome
habitat
ecological system
ecospace

Common mistakes

Confused with 'environment' - ecosystem is about relationships among organisms.
Using it in singular form when referring to multiple ecosystems.
Incorrectly assuming it only applies to natural environments.