Objective: Understand the Concept of Ecological Succession Key Words: Ecological Succession, draining a marsh, clearing woodland to grow crops, strip mining

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<ul><li> Slide 1 </li> <li> Objective: Understand the Concept of Ecological Succession Key Words: Ecological Succession, draining a marsh, clearing woodland to grow crops, strip mining. Do Now: Describe the picture What would happen to this ecosystem area in 30 years? (Assuming no natural disaster or human interference) </li> <li> Slide 2 </li> <li> 1. Describe the sequence of pictures. Objective: Understand the Concept of Ecological Succession Key Words: Ecological Succession, draining a marsh, clearing woodland to grow crops, strip mining. Sequence of communities that replace each other over time </li> <li> Slide 3 </li> <li> 2. What types of human activities could cause the change from C to D in the diagram? Logging, strip mining, deforestation, clearing woodland to grow crops or graze livestock, Objective: Understand the Concept of Ecological Succession Key Words: Ecological Succession, draining a marsh, clearing woodland to grow crops, strip mining. Draining a marsh Strip mining Clearing woodland to grow crops </li> <li> Slide 4 </li> <li> 3. What types of natural events could cause that change as well? A severe storm, hurricane, wildfire, earthquake, volcanic eruption, tornado, drought, tsunami, flooding. Objective: Understand the Concept of Ecological Succession Key Words: Ecological Succession, draining a marsh, clearing woodland to grow crops, strip mining. </li> <li> Slide 5 </li> <li> 4. Arrange the following events as natural disasters or human activities that can be responsible for disrupting an ecosystem. Logging, flood, wildfire, tornado, draining a marsh, clearing woodland to grow crops, removing a beaver dam, a severe storm, hurricane, earthquake, volcanic eruption, graze livestock, drought, strip mining, Tsunami, deforestation Draining a marsh Strip mining Clearing woodland to grow crops Objective: Understand the Concept of Ecological Succession Key Words: Ecological Succession, draining a marsh, clearing woodland to grow crops, strip mining. </li> <li> Slide 6 </li> <li> Deforestation Logging, draining a marsh, clearing woodland to grow crops, removing a beaver dam, graze livestock, strip mining, 4. Arrange the following events as natural disasters or human activities that can be responsible for disrupting an ecosystem. Natural disasters Human activities flood. wildfire, tornado, a severe storm, hurricane, earthquake, volcanic eruption, drought, Tsunami Logging, flood. wildfire, tornado, draining a marsh, clearing woodland to grow crops, removing a beaver dam, a severe storm, hurricane, earthquake, volcanic eruption, graze livestock, drought, strip mining, Tsunami deforestation, Objective: Understand the Concept of Ecological Succession Key Words: Ecological Succession, draining a marsh, clearing woodland to grow crops, strip mining. </li> <li> Slide 7 </li> <li> 5. Predict what would happen to the soil and vegetation of the ecosystem shown after stage F, assuming no natural disaster or human interference. I predict the ecosystem will fully recover. First, grasses and shrubs will grow; then soil will become thicker so it can support small trees. Then, small trees and shrubs will spread in the area; that will thicken the soil as well. Finally, a dense forest will be established for a long period of time. Objective: Understand the Concept of Ecological Succession Key Words: Ecological Succession, draining a marsh, clearing woodland to grow crops, strip mining. </li> <li> Slide 8 </li> <li> Ecological Succession is the natural process in which one community of plants and animals gradually replaces another, in response to changing environmental conditions. 6. What is an ecological succession? Objective: Understand the Concept of Ecological Succession Key Words: Ecological Succession, draining a marsh, clearing woodland to grow crops, strip mining. </li> <li> Slide 9 </li> <li> Objective: Understand the Concept of Ecological Succession Key Words: Ecological Succession, draining a marsh, clearing woodland to grow crops, strip mining. Do Now: Describe the picture What would happen to this ecosystem area in 30 years? (Assuming no natural disaster or human interference </li> <li> Slide 10 </li> <li> Slide 11 </li> <li> _______________________ Cattails, bulrishes, and water lilies grow in the pond. These plants have their roots in the bottom of the pond, but they can reach above the surface of the water. This pond is an ideal habitat for the animals that must climb to the surface for oxygen. Aquatic insect larvae are abundant. They serve as food for larger insects, which in turn are food for crayfish, frogs, salamanders, and turtles. _______________________ Decayed bodies of plants and animals form a layer of humus over the bottom of the pond. Chara, a branching green algae, covers the humus. Fish that build nests on the bare bottom have been replaced by those that lay their eggs on the Chara. _______________________ Plankton growth is rich enough to support animals that entered when the pond was connected to the lake. Fish make nests on the sandy bottom. Mussels crawl over the bottom. _______________________ The pond is so filled with vegetation that there are no longer any large areas of open water. Instead, the pond is filled with grasses. The water dries up during the summer months. Stage A Stage D Stage C Stage B </li> <li> Slide 12 </li> <li> Logging, strip mining, deforestation, draining a marsh, clearing woodland to grow crops or graze livestock, removing a beaver dam, A severe storm, hurricane, wildfire, earthquake, volcanic eruption, tornado, drought, tsunami, flood. Stages C D A -- B They will be found in a stage C pond They will eventually die since no eggs will hatch on a organic debris bottom They will be found in a stage D pond </li> <li> Slide 13 </li> <li> They will be found in a stage B pond They will be found in a stage A pond They will die out in a stage D pond </li> <li> Slide 14 </li> <li> We observe an ecological succession in that area of Michigan. In the first stage we can observe grasses and small shrubs, then small trees and bushes. After that, it develops into a dense forest. </li> <li> Slide 15 </li> <li> Ecological Succession. As more soil accumulated (from the decomposition of dead vegetation), plants with deeper root systems could live there and shade out the earlier plants. Cutting the forest / clearing the land for crops / controlled burn / causing forest fires / pollution There will be an ecological succession. OR The soil depth will increase and trees will be present. OR The soil will change in composition and the plant species will change. </li> <li> Slide 16 </li> <li> Slide 17 </li> </ul>

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