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Threats to Biodiversity: Endangered Species and Biomagnification

Explore the impact of endangered species and biomagnification on ecosystems. Learn about the causes of extinction and the increase in harmful substances as they move up the food chain.

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Threats to Biodiversity: Endangered Species and Biomagnification

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Presentation Transcript

  1. Warm-Up • Which organism is both a secondary and tertiary consumer? • Where does the energy that drives this ecosystem come from?

  2. Endangered Species • Organisms threatened with extinction • Once extinct, the species is gone forever!! • Caused by hunting, disease, pollution, habitat destruction

  3. Endangered Species • EX: Ivory-billed woodpecker

  4. Ten Animals that May Go Extinct Video

  5. Biomagnification

  6. Biomagnification • Food web magnification • Steady increase in the concentration of harmful substances as the trophic level increases. • Lower trophic levels have smaller concentrations of contaminants than higher levels.

  7. Toxic Chemicals

  8. Biomagnification of DDT Video

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