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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? 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 SCA Voice Level 0 -Keep Privacy Folders up unit instructed to put them down -Test ID# DO NOW Date: 5/21 Q: How do ecosystems change over time? What are the non-living parts of an ecosystem? ESSENTIAL QUESTION: How do ecosystems change over time? OBJECTIVES: -Identify Abiotic and Biotic Factors in an ecosystem -Discuss their importance ENGAGE: Word Sort Sort the cards at your table into two groups: Living Things Non-living things • Biotic and Abiotic Factors Vocabulary pg Word Definition EXAMPLE Abiotic Factors All of the non-living parts of an ecosystem Air, soil, Sun Biotic Factors All of the living parts of an ecosystem Animals, plants, bacteria Name That Factor Name That Factor Name That Factor 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? 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. Succession in the Garden pg 142 DAY ONE: Drawing Week 2: Predictions Inventory: Abiotic/Biotic Factors Succession Succession in Action SUCCESSION- CORNELL NOTES pg 143 Main Idea Summary Details/Definitions 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. • opDA Pioneer Species: Lichens Climax Community •Stable, end stage of ecological succession in which organisms use resources efficiently and balance is maintained. 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. Secondary Succession: The reestablishment of community following disturbance. 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 Climax Community •Stable, end stage of ecological succession in which organisms use resources efficiently and balance is maintained. Volcano Year Zero All Mt. St. Helens images courtesy of University of Washington Forest Fire All forest fire images Courtesy of US Forest Service Rocky Mountain Research Station Year Eight Volcano Forest Fire Year Twelve Volcano Forest Fire Year Seventeen Volcano Forest Fire Year Twenty Volcano Forest Fire 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 Succession- Short Clip Secondary Succession Secondary Succession Wind Climax Community Pioneer species enter Start Secondary Succession Secondary Succession Disturbance Pioneer species begin to grow Secondary Succession Secondary Succession Disturbance Pioneer species + other species begin to grow Secondary Succession Secondary Succession Disturbance A new community of organisms is being established Secondary Succession Secondary Succession Most life eradicated; some seeds may remain in soil New climax community is established End DO NOW Date: 5/24 Q: How do ecosystems change over time? Why is succession beneficial for some habitats? 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 Succession- Short Clip Succession Cards -Primary Succession -Secondary Succession Put the cards in order of the events that will occur in the ecosystem. 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. 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. Secondary Succession: The reestablishment of community following disturbance. Mount St. Helens Succession in Nature • Mount St. Helen's