Is an ecosystem composed of only one community?

Answer 1

Ecosystems are composed of one or many communities.

In turn communities are composed of many populations interacting, and populations are composed of a number of individuals of the same species.

Communities can be different sizes and fit into different places, so the number of communities depends on the ecosystem. For example, there can be many more communities in the rain-forest (upper canopy, midsection, forest floor, etc) than opposed to a grassland (above ground like in herds, and below ground like moles).

Answer 2

No, an ecosystem consists of all living organisms (biotic factors) interacting with each other and their physical environment (abiotic factors). A community is a group of interacting populations of different species within an ecosystem. So an ecosystem is made up of multiple communities.

Answer 3

Short {medium, and long} Answer = No.