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DO NOW Date: 5/20 Q: How does matter cycle in an ecosystem? How do carbon and nitrogen cycle in ecosystems?

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Presentation on theme: "DO NOW Date: 5/20 Q: How does matter cycle in an ecosystem? How do carbon and nitrogen cycle in ecosystems?"— Presentation transcript:

1 DO NOW Date: 5/20 Q: How does matter cycle in an ecosystem? How do carbon and nitrogen cycle in ecosystems?

2 ESSENTIAL QUESTION: How does matter cycle in an ecosystem? OBJECTIVES: -Take SCA over Food Webs and Cycles -Review answers to SCA and evaluate our progress

3 SCA Voice Level 0 -Keep Privacy Folders up unit instructed to put them down -Test ID#

4 DO NOW Date: 5/21 Q: How do ecosystems change over time? What are the non-living parts of an ecosystem?

5 ESSENTIAL QUESTION: How do ecosystems change over time? OBJECTIVES: -Identify Abiotic and Biotic Factors in an ecosystem -Discuss their importance

6 ENGAGE: Word Sort Sort the cards at your table into two groups: Living Things Non-living things

7 Biotic and Abiotic Factors

8 Vocabulary pg WordDefinitionEXAMPLE Abiotic Factors All of the non-living parts of an ecosystemAir, soil, Sun Biotic Factors All of the living parts of an ecosystemAnimals, plants, bacteria

9 Name That Factor

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12 DO NOW Date: 5/22 Q: How do ecosystems change over time? How do fires impact an ecosystem? Can they be good for a habitat? Why or why not?

13 ESSENTIAL QUESTION: How do ecosystems change over time? OBJECTIVES: -Predict how a garden habitat might change over time. -Define succession and analyze the change in an ecosystem.

14 Succession in the Garden pg 142 DAY ONE: DrawingInventory: Abiotic/Biotic Factors Week 2: Predictions

15 Succession Succession in Action

16 SUCCESSION- CORNELL NOTES pg 143 Main Idea Details/Definitions Summary

17 Bare rock is exposed due to some type of disturbance like a retreating glacier or volcanic eruption. No soil is present. Pioneer species, like lichens and mosses, establish themselves on the rock substrate. Pioneer species die and decay, providing soil and nutrients for other plant species like shrubs and small trees. Small and Large trees begin to grow, and the community reaches an equilibrium or balance. This results in a climax community. Primary Succession: The establishment of new community where none existed before.

18 opDA Pioneer Species: Lichens

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20 Climax Community Stable, end stage of ecological succession in which organisms use resources efficiently and balance is maintained.

21 Secondary Succession: The reestablishment of community following disturbance. Organisms are driven away or killed by some type of disturbance, like a forest fire, leaving behind only the soil. Pioneer species, like grasses and weeds, begin to grow from the soil. Roots and seeds left over may also begin to grow again. Some pioneers species die and are replace or outcompeted by other species like shrubs and small trees. Small and Large trees begin to grow, and the community reaches an equilibrium or balance. This results in a climax community.

22 Habitat Vocabulary pg 109 Primary Succession- when an area regrows after a disturbance has removed all plants and SOIL Secondary Succession- when an area re-grows itself after a disturbance has removed all plants and the soil still remains Pioneer Species- the first species to start growing in an area Climax Community- when an area has grown into a stable community

23 Climax Community Stable, end stage of ecological succession in which organisms use resources efficiently and balance is maintained.

24 Year Zero VolcanoForest Fire All Mt. St. Helens images courtesy of University of Washington All forest fire images Courtesy of US Forest Service Rocky Mountain Research Station

25 Year Eight VolcanoForest Fire

26 Year Twelve VolcanoForest Fire

27 Year Seventeen VolcanoForest Fire

28 Year Twenty VolcanoForest Fire

29 Flip Book Cut your pieces Put them in order Staple once on the side Write a description of what was is happening in each scence

30 Succession- Short Clip

31 Start End Secondary Succession Climax Community Wind Secondary Succession Disturbance Secondary Succession Disturbance Secondary Succession Disturbance Secondary Succession Most life eradicated; some seeds may remain in soil Secondary Succession Pioneer species enter Secondary Succession Pioneer species begin to grow Secondary Succession Pioneer species + other species begin to grow Secondary Succession A new community of organisms is being established Secondary Succession New climax community is established

32 DO NOW Date: 5/24 Q: How do ecosystems change over time? Why is succession beneficial for some habitats?

33 ESSENTIAL QUESTION: How do ecosystems change over time? OBJECTIVES: -Properly identify the order of primary and secondary succession -Investigate succession in action on Mt. Saint Helen’s

34 Succession- Short Clip

35 Succession Cards -Primary Succession -Secondary Succession Put the cards in order of the events that will occur in the ecosystem.

36 Bare rock is exposed due to some type of disturbance like a retreating glacier or volcanic eruption. No soil is present. Pioneer species, like lichens and mosses, establish themselves on the rock substrate. Pioneer species die and decay, providing soil and nutrients for other plant species like shrubs and small trees. Small and Large trees begin to grow, and the community reaches an equilibrium or balance. This results in a climax community. Primary Succession: The establishment of new community where none existed before.

37 Secondary Succession: The reestablishment of community following disturbance. Organisms are driven away or killed by some type of disturbance, like a forest fire, leaving behind only the soil. Pioneer species, like grasses and weeds, begin to grow from the soil. Roots and seeds left over may also begin to grow again. Some pioneers species die and are replace or outcompeted by other species like shrubs and small trees. Small and Large trees begin to grow, and the community reaches an equilibrium or balance. This results in a climax community.

38 Mount St. Helens

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40 Succession in Nature Mount St. Helen's


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