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Ecosystem Values and Disturbances

Ecosystem Values and Disturbances. Value of an Ecosystem. Instrumental. Intrinsic. Value independent of any benefit to humans. Cultural services: The knowledge we gain Provisions pharmaceuticals Regulating Services Act as filters of Carbon dioxide Support Systems Pollination

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Ecosystem Values and Disturbances

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  1. Ecosystem Values and Disturbances

  2. Value of an Ecosystem Instrumental Intrinsic Value independent of any benefit to humans. • Cultural services: • The knowledge we gain • Provisions • pharmaceuticals • Regulating Services • Act as filters of Carbon dioxide • Support Systems • Pollination • Filter water

  3. What do you think happened here?

  4. List some things that could cause disturbances in an ecosystem. • Hurricanes • Ice storms • Volcanoes • Forest fires • Agriculture • Deforestation • Air pollution • surface mining

  5. Resistance vs. Resilience Resistance Resilience An ecosystem’s ability to return to its original state. • The measure of how much a disturbance can affect the flows of matter and energy in an ecosystem

  6. Are all disturbances bad?

  7. The intermediate Disturbance Hypothesis States ecosystems experiencing intermediate levels of disturbance are more diverse than those with high or low disturbance levels.

  8. Primary Succession vs. Secondary succession

  9. Succession

  10. Aquatic succession

  11. Now draw your own on the back of the paper… • Include the labels • Primary succession or secondary succession • Pioneer species • Intermediate species • Climax community 4 stages

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