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Chapter 6: Humans in the Biosphere

Chapter 6: Humans in the Biosphere. Chapter 6 Keystone Terms. Agriculture, 155 Renewable Resource (added), 157 Nonrenewable Resource (added), 157 Sustainable Development (added), 157 Biological Magnification (added), 161 Biodiversity (added), 166 Ecological Footprint (added), 173.

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Chapter 6: Humans in the Biosphere

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  1. Chapter 6: Humans in the Biosphere

  2. Chapter 6 Keystone Terms • Agriculture, 155 • Renewable Resource (added), 157 • Nonrenewable Resource (added), 157 • Sustainable Development (added), 157 • Biological Magnification (added), 161 • Biodiversity (added), 166 • Ecological Footprint (added), 173

  3. Human Activity Agriculture Development Industry

  4. Resources and Sustainable Development Nonrenewable Resources are resources that cannot be replenished for use in a reasonable amount of time. What are examples of nonrenewable resources? Sustainable Development provides for human needs while preserving the ecosystems that produce natural resources? What types of resources allow for sustainable development?

  5. Resources and Sustainable Development Renewable Resources are resources that can be produced or replaced by a healthy ecosystem. What are examples of renewable resources?

  6. Human Impacts on Ecosystems Deforestation Desertification Acid Rain Smog

  7. Biological Magnification This occurs when a pollutant is picked up by an organism and is not broken down in the body, so it collects in body tissue. Therefore, pollutant concentrations (or amounts) increase as each trophic level increases. This is also known as biomagnification.

  8. What is Biodiversity? Biodiversity is the total of all genetically based variation in all organisms in the biosphere. In other words, all living things on Planet Earth! Why is preserving biodiversity important?

  9. Threats to Biodiversity 300 Left in Wild • Altered Habitat • Hunting / Poaching • Demand for Wildlife Products • Invasive Species • Pollution • Climate Change 3200 Left in Wild 30 Left in Wild Lived on Earth for more than 100 million years… now critically endangered.

  10. Why is Biodiversity important? Medicine - 50% of all medicines are derived from plant species. Some cures for diseases may be gone before they are even discovered. Agriculture - By understanding and utilizing the genetic diversity of wild plants, we can transfer these useful traits to our own crops. Ecosystem Services – Healthy and diverse ecosystems play a role in maintaining the soil, water, and air quality that we need to survive.

  11. Why is Biodiversity important? Aesthetics - Don’t we have a responsibility to protect and value the beauty of all life on our planet?

  12. Ecological Footprints • The total area of functioning land and water ecosystems needed by individuals or populations. • Shelter • Food Consumption • Water Consumption • Energy Consumption • Waste production • How much do YOU use?

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