Chapter 13: Restoration Ecology - PowerPoint PPT Presentation

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Chapter 13: Restoration Ecology
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Chapter 13: Restoration Ecology

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  1. Chapter 13: Restoration Ecology

  2. 13.1 Helping Nature Heal • Rule #1: Stop the Abuse • Many Systems Heal on their Own

  3. 13.1 Helping Nature Heal • Restoration projects range from modest to ambitious • Restoration ecologists tend to be idealistic but pragmatic • Restoration projects have common elements • Early conservationists showed the promise of restoration

  4. 13.2 Nature Can Be Remarkably Resilient • Protection is the first step in restoration • Native species often need help to become reestablished • May be locally extinct • May not be able to cross intervening spaces • May need help against competitors

  5. 13.3 Restoring Forests Has Many Benefits • Tree planting can improve our quality of life • Arbor Day, 1872 • Exported to Japan, 1883 • Now Global • What Can You Do? Ecological Restoration in Your Own Neighborhood • Fire is essential for savannas • Hard to Convince Homeowners

  6. 13.4 Restoring Prairies • Fire is also crucial for prairie restoration • Huge areas of shortgrass prairie are being preserved • Bison help maintain prairies

  7. 13.5 Restoring Wetlands And Streams • Reinstating water supplies helps wetlands heal • The Everglades are being replumbed • The Chesapeake Bay is being rehabilitated • Wetland mitigation can replace damaged areas • Constructed wetlands can filter water • Many streams need rebuilding • Severely degraded or polluted sites can be repaired or reconstructed