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Natural Disturbances
A natural event that disrupts the structure and or function of an ecosystem
Periodic
occurs with regular frequency (ex: dry-wet seasons)
Episodic
occasional events with irregular frequency (ex: hurricanes, droughts, fires)
Random
no regular frequency (volcanoes, earthquakes, and asteroids)
Natural Climate Change
Earth’s climate has varied over geologic time for numerous reasons
Environmental disturbances cause
widespread habitat changes and or loss
Migration
Wildlife may migrate to a new habitat as the result of natural disruptions