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Environmental Impact Analysis: Biodiversity, Exotic Species, and Habitat Loss

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Explore human activities affecting the environment, from suburban sprawl to exotic species introduction. Understand biodiversity, extinction causes, and the consequences of habitat destruction.

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Environmental Impact Analysis: Biodiversity, Exotic Species, and Habitat Loss

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  1. 4/22/14 WARM UP Grab Folders Pull out notes from yesterday (HUMAN IMPACT NOTES) Answer question on that paper: What must often be added to increase the speed or ability of two substances to react? A bigger container Adding heat More substances Adding water

  2. Which of these is an example of energy involved in a chemical change/. • Dropping a rock • Heating a burner on stove top • Freezing an ice cube • Burning a candle

  3. 5. Suburban Sprawl & Deer • What is it: When people build communities right on the edge of a natural habitat for a species – then many species will start to come into the developed land • Issue: • What to do? • http://ur.umich.edu/9596/May07_96/artcl18.htm, http://www.rpaforall.org/RPA%20Factsheet%205.pdf

  4. Biodiversity, Extinction & Exotic Species SWOD: Natural Selection

  5. Biodiversity • The number of different species in an area • Biodiversity = a variety of animals and life • http://fc01.deviantart.net/fs30/i/2008/077/b/8/Diversity_of_Species___Brushes_by_scumbugg.jpg

  6. The value of biodiversity • 2 ways: • 1. economic value • Foods, resources, commodities • Medicines • 2. ecological value • Food webs • http://www.biologycorner.com/resources/foodweb1.gif

  7. Concerns with Biodiversity • Decline in habitat • Extinction/endangered species (extinction = organism is completely gone (endangered = very few species left and could possibly become extinct) • Causes: watch video and write down all the causes of extinction.

  8. Extinction Causes • Causes: • Habitat destruction (primary cause) • Poaching • Pollution • Exotic species  discuss later in class

  9. Thylacine http://www.fxdirectory.info/wp-content/uploads/2011/03/Baiji-dolphin-is-endangered-habitat.jpg • http://en.wikipedia.org/wiki/File:Pteropus_conspicillatus.jpg • http://www.dodo.blog.br/wp-content/uploads/2007/08/ferahgo.jpg

  10. Exotic/Introduced/Invasive species • Advantages: • Pollination • Food • Butterflies feeding on non-native plants • Reforestation • Exotic trees restore forest to help bring back native species • Endangered

  11. Examples of Exotic Species that were harmful • Zebra Mussel • Kudzu • Nutria Rat • River Monster & Piranas

  12. Zebra Mussels

  13. Disadvantages • 1. Kudzu: prevent soil erosion • Kudzu video

  14. Nutria Rat

  15. Disadvantages of Exotic Species • In your tables, come up with a list of 4 disadvantages that come with introducing an exotic species. • Think of 2 other exotic species we did not discuss in class

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