what is ecological imbalance explain by citing example
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In this lesson, you will learn the definition of ecological imbalance and explore some examples of ecosystems that have shifted to a state of imbalance. Test your new knowledge at the end with a quiz.
How Ecosystems Work
Has your car ever broken down on the side of the road? Often, a car breaks down because one simple part is broken. There are many moving parts that make a car work. A spark plug ignites the fuel, wheels move the car forward, and a radiator cools down the engine. In order for a car to work smoothly, all parts need to be intact and in good condition. Just like a car, species living in an ecosystem play an important part in keeping an ecosystem running smoothly. If one species is lost the entire ecosystem can stop working.
Ecosystems are organized in a state of balance where species coexist with other species. If something happens in an ecosystem, it can shift from a state of balance to a state of imbalance. Ecological imbalance is when a natural or human-caused disturbance disrupts the natural balance of an ecosystem. A disturbance is any change that causes a disruption in the balance of an ecosystem.
Examples of natural disturbances are
Volcanic eruptions
Floods
Natural fires
Examples of human-caused disturbances are
The introduction of a new species
Logging a forest
Pollution
Overhunting of a species
After a disturbance occurs, an ecosystem can recover back to a balanced state. But if an ecosystem has a severe disturbance or is constantly having new disturbances, it may never recover back to a state of ecological balance.