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Ecosystems

The value of ecosystems to people

  • 3 things to know
  • A2 Unit 4

Overview

Ecosystem services, four categories of ecosystem service and provisioning service.

What you need to know

Answer each one before you reveal it.

Your recallNot started
Key term

Define an ecosystem.

Key term

What are ecosystem services?

Key term

Give two examples of a provisioning service.

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    Define an ecosystem.

    Model answer

    An ecosystem is a community of living organisms together with the non-living components of their environment, interacting as a system.

  2. 2

    What are ecosystem services?

    Model answer

    Ecosystem services are the benefits people obtain from ecosystems, including the goods they supply and the processes they regulate.

  3. 3

    Name the four categories of ecosystem service.

    Model answer

    Provisioning, regulating, supporting and cultural services.

  4. 4

    Give two examples of a provisioning service.

    Model answer

    Food from fisheries and farmland, and timber, fibre and fresh water.

  5. 5

    Give two examples of a regulating service.

    Model answer

    Regulation of climate through carbon storage, and flood regulation by wetlands and woodland that slow run-off.

  6. 6

    Give two examples of a cultural service.

    Model answer

    Recreation and tourism in natural landscapes, and the spiritual and cultural significance places hold for communities.

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AFew coastal people recognised the signs.
BThe coasts were densely populated.
CMany communities were struck with no notice at all.

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