Introduce biodiversity and why it is so important in maintaining healthy ecosystems. Investigate why species populations fluctuate and what impact this can have on the health of the ecosystem. Read about the Galapagos Giant Tortoise – a keystone species.
Learning objectives
- To know that species populations fluctuate according to a range of factors
- To understand biodiversity can improve the health of an ecosystem
- To appreciate that the fluctuation in size of one species population can affect other species populations
Students' outcomes
- To give examples of factors that affect species population sizes. Should refer to density-dependent and density-independent factors
- To explain how biodiversity can improve the ecosystem health and their ability to cope with environmental change
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Biodiversity and Ecosystem Health
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