60 likes | 303 Views
DISTURBANCES. Natural Human. Definition. An event that will damage an ecosystem by harming or killing off living organisms. Natural. Triggered by environmental phenomena Examples: Storms (hurricanes, tornadoes, etc) Volcanic eruptions Forest fires Droughts Floods Frost/glaciers
E N D
DISTURBANCES Natural Human
Definition • An event that will damage an ecosystem by harming or killing off living organisms
Natural • Triggered by environmental phenomena • Examples: • Storms (hurricanes, tornadoes, etc) • Volcanic eruptions • Forest fires • Droughts • Floods • Frost/glaciers • Heat waves • Landslides
Human • Triggered by human action • Principal source of disturbances • Examples: • Logging/Deforestation • Oil spills • Mining • Eutrophication • Garbage waste • Overuse of CO2 Greenhouse effect • Air Pollution • Depletion of fisheries • Species extinction/overhunting