Indicator species

Galapagos Wildlife: Galapagos Penguin © Bill Hale

Galapagos penguins are an indicator species © Bill Hale

An indicator species is a species whose presence, absence, abundance or general health indicates how healthy the ecosystem is as a whole. Scientists can use an indicator species to measure overall biodiversity and therefore monitor how successful conservation projects are. Indicator species are generally very sensitive to changes in their environment. Galapagos penguins are an example of an indicator species.

Indicator species features on these pages:

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Glossary of Galapagos