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Bioindicator Definition

A bioindicator is an organism that reveals ecosystem health changes, indicating potential problems. For example, a declining frog population can signal ecosystem imbalance.

View Lesson on Maintaining Biodiversity
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Maintaining Biodiversity

Fun Facts

  • Frogs indicate water quality changes as bioindicators.
  • Worms are bioindicators that signal changes in soil quality.
  • Lichen is a bioindicator sensitive to air quality changes.

Why Do We Need To Know About Bioindicator

Learning about bioindicators helps us know if an ecosystem is healthy or not. Bioindicators are things like frogs, worms, and lichen that show us if something bad, like pollution, is happening in the environment because they react to changes.

When we study bioindicators, we learn more about the environment’s condition. This knowledge can lead to jobs in saving the environment and making sure ecosystems stay healthy. People in these jobs work on finding ways and making rules to protect nature, showing why bioindicators are important for us.

Frequently Asked Questions

Explain why biodiversity in an ecosystem is important.
Biodiversity in an ecosystem is important because it helps an ecosystem stay healthy.
Give an example of a keystone species and what can happen if it is removed or leaves an ecosystem.
A sea star is an example of a keystone species, and without it the ecosystem can collapse, like the tide pool example from the video.
How are food webs used to help explain ecosystem interactions?
Food webs are models of the interactions that happen between the organisms found in the ecosystem. They can be used to explain how matter cycles and energy flows, and it is useful in making predictions about the food resources needed to maintain biodiversity in the ecosystem.
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