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Invasive Species

Invasive Species. 4-2-14. 4-2-14 Bell Work:. Explain what an invasive species is. . Daily Review:. Is an invasive species always harmful? Yes, or it would not be called “invasive.” Invasive means it is taking over. Review:.

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Invasive Species

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  1. Invasive Species 4-2-14

  2. 4-2-14 Bell Work: • Explain what an invasive species is.

  3. Daily Review: • Is an invasive species always harmful? • Yes, or it would not be called “invasive.” • Invasive means it is taking over.

  4. Review: In order to survive, most organisms have specific requirements related to: Warmth Space Light All of the above

  5. 4-2-14 Objective: • I will research invasive species information for my presentation. • HW: None

  6. For Today: • Effects on people (helps/hurts how?) • Effect on the ecosystem (helps/hurts how?)

  7. Nile Perch Example: Effects on People • Huge increase in food availability for locals (positive) • Decline of small fisheries and increase in large fishing operations (positive or negative) • Increase in fish exports, providing more money and jobs (positive)

  8. Example: Effects on Ecosystems • Extinction of 200 species of cichlids • Four-Fold increase in algae levels, which has reduced oxygen availability within the lake • Increase in number of insects • Deforestation (increase of trees cut down to process Nile perch)

  9. Closure: • Give us something you have learned about your invasive species.

  10. Long Term Memory Review • Order the following from smallest to largest: Bacteria Protist virus Smallest-Virus Middle-Bacteria Largest-Protist

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