Some animals can act as an early warning system to environmental scientists that there is a problem brewing in an ecosystem. For example, back in the 1800s, coal miners used to take caged canaries into the mines with them. The birds would sing and chirp often. However, if the bird stopped singing it was an early indication that there might be poisonous gases in the mine that would be harmful to the miners. This system would allow the miners to evacuate the mine before the poisonous gases killed the miners. Environmental scientists can look out for certain animals in an ecosystem which will give them an indication as to the health of that region. Birds and butterflies are excellent indicator species because they can be affected quickly by environmental changes.
Go to the following website: Marietta College: Biome Study
On the map, click on one of the biomes.
Read about the indicator species (plants and animals) of that region.
Write a few sentences about the indicator species of that region.