1 / 16

Starter:

Starter:. Read the passage and then summarise what you have read – write the summary into your book. Today’s objectives understand reasons why species can become extinct explain why scientists must think carefully before introducing non-native species into habitats. Extinction. Extinction.

andren
Download Presentation

Starter:

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Starter: • Read the passage and then summarise what you have read – write the summary into your book.

  2. Today’s objectives understand reasons why species can become extinct explain why scientists must think carefully before introducing non-native species into habitats Extinction

  3. Extinction • What is the definition of extinction? • What causes extinction? • Write down an example of a plant or animal under threat and the reasons why it could be at risk of extinction.

  4. What are the differences between native and non-native species? • Where do Kangaroos live? • Are rabbits native to Australia?

  5. Native Species = Species that originate in the region or ecosystem • Non native species = Species that do not originate in the region or ecosystem

  6. Justin Bieber vs • One direction

  7. What did you find out for your homework? • Anyone willing to share their work? • What examples are there of non-native species (alien species)?

  8. Which one is native to the UK?

  9. Task... • Read the blue section in the text book p76-77 and answer question 3 and 4: 3: explain why species might become extinct due to the introduction of another species. 4: why have Cane toads been so successful in Australia?

  10. Why have Cane toads been so successful in Australia?

  11. Introduced to kill beetles in 1930’s • Good idea… NOT! • Populations over 200m • Secretes poisons to predators • Taking over native wildlife

  12. You are in charge of biological issues for the UK. They ask you to introduce a non native species of eagles to bring down grey squirrel populations. Should you do it?Explain using some to the words. • Habitat • Environment • Adaptation • Competition • Interdependence • Extinction • Native • Non-native

More Related