Indicator Species

HideShow resource information
View mindmap
  • Indicator Species
    • Indicator species can be studied to monitor the levels of pollution because they are very sensitive to changes in their environment.
    • 1. Water pollution
      • If raw sewage or other pollutants are released into a river the bacterial population increase and uses up the oxygen.
      • e.g. Stonefly larvae and freshwater shrimps are indicators for water pollution because they are sensitive to the concentration of dissolved oxygen in the water.
      • Other invertebrate spies have adapted to live in polluted environments so if you see them they indicate a very high level of water pollution e.g. blood worms and sludgeworms
    • 2. Air pollution
      • Lichen that is very sensitive to the concentration of sulfur dioxide in the atmosphere can monitor the air pollution.
        • The number and type of lichen at a particular location will indicate how clean the air is. The air is clean is there is more lichen.
      • Black spot fungus is found on rose leaves which is sensitive to the level of sulfur dioxide in the air so its presence will indicate clean air.

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Variety of life and classification resources »