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Interdependence within Environmental Systems

Interdependence within Environmental Systems. 11D Ecological Succession. 2 types of succession Primary- Secondary- Discuss with partner what you know about each. Succession video What are pioneer species?. Primary succession. Secondary Succession. Fact or Fib.

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Interdependence within Environmental Systems

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  1. Interdependence within Environmental Systems

  2. 11D Ecological Succession 2 types of succession • Primary- • Secondary- Discuss with partner what you know about each. Succession video What are pioneer species?

  3. Primary succession

  4. Secondary Succession

  5. Fact or Fib • Primary succession takes only a few years. • Secondary succession is a result of volcanic activity like Mt. St. Helens. • 1’ has lichens and moss as the first pioneer species. • 2’ is the rebuilding of an established area. • Climax communities will be reached about the same time. • Hurricane destruction is an example of 1’.

  6. 12A Relationships Among Organisms • Symbiotic relationships • 5 types • Predation + - • Competition + - • Parasitism + - • Commensalism + 0 • Mutualism + +

  7. Symbiotic relationship card activity • Each card will have a buddy card that creates one of the 4 symbiotic relationships. EX: lion and wildebeast. • Put the 4 relationship cards at the top of your desk. Which type of relationship is the example? Place the cards in that category. • GO!!!! First one all correct gets a prize.

  8. 12C Matter and Energy Flow—food web and energy pyramids. • What do the arrows in a food chain or web show? • Flow of energy—only goes up. • What is a producer? • Makes its own food—plants. • Located where in food chain/web? • Bottom

  9. What is a(n) …………. • Herbivore • Carnivore • Omnivore • Detritivore • decomposer

  10. Trophic levels (energy levels)

  11. Levels of food web • Producer • First level (order) consumer • Second level (secondary) consumer • Third level (tertiary) consumer • Fourth level (quaternary) consumer (TOP)

  12. Marine food web

  13. Desert food web

  14. Forest food web

  15. Ecological pyramids • Biomass

  16. Energy pyramid Stored energy decreases as the pyramid increases

  17. 10% rule

  18. biomagnification • Increasing amounts of toxins (poison) as you go up the pyramid

  19. DDT was a pesticide used to rid crops of bugs. Runoff into rivers and streams.

  20. 12F Environmental Change • Ecosystem stability—examples • Cycles • N-nitrogen—bacteria turn nitrogen into different form plants can use • C-carbon—most carbon stored in ground but disrupting can release • P-phosphorous—used in DNA-making amino acids which make proteins • Water-recycle the water • Oxygen-photosynthesis

  21. https://www.youtube.com/watch?v=nzImo8kSXiU carbon cycle • https://www.youtube.com/watch?v=leHy-Y_8nRs nitrogen and phosphorous cycle • What happens if one is disrupted?

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