There are some changes that don’t affect the overall balance of an ecosystem, but there are other changes that can greatly affect the balance. These changes can destroy an ecosystem.
Natural changes in ecosystems
These changes don´t alter the balance of the ecosystems:
- Night and day: light and temperature.
- Seasons: weather.
- Tides: water levels.
- Migration of animals.
- Human activities: seeding, planting and harvesting.
Harmful changes in ecosystems
These changes cause migration or death in living organisms. Ecosystems can´t recover easily or they are permanently altered.
These changes cause migration or death in living organisms. Ecosystems can´t recover easily or they are permanently altered.
- Natural disasters.
- Excessive hunting, fishing or harvesting.
- Disease.Pollution.
- Building.
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