Biological Indicators

Biological indicators are living organisms or biological markers used to assess the health of an environment or ecosystem. They help scientists gauge pollution levels and overall ecological balance. For instance, certain species of insects, plants, or microorganisms are sensitive to changes in their environment; their presence or absence can signal the quality of air, water, and soil. By monitoring these organisms, researchers can determine the impacts of human activity and climate change, helping inform conservation efforts and environmental policies to protect ecosystems.