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Question

What is a bioindicator? What are some examples of bioindicators?


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Solution

Bioindicator:

  1. Any species (indicator species) or group of species whose function, population, or status can reveal the environmental quality state is referred to as a bioindicator.
  2. Bioindicators can reveal the cumulative effects of various pollutants in the ecosystem, as well as how long a problem has been.
  3. Animals are the most common indicator species.

Examples of bioindicators:

  1. Lichens:
  • Lichens are symbiotic associations between algae and fungi.
  • Lichens are excellent air pollutant indicators since they do not flourish in polluted environments.

2. Phytoplanktons:

  • Plankton communities are frequently employed as bioindicators in aquatic systems to track ecological change.

3. Earthworms:

  • They are bioindicators of soil quality.

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