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Lecture 9 The Ecosystem
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Lecture 9 The Ecosystem

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  • 1. Online bioscience course for grades 6-12 Fall 2009 bio 1.0
  • 2. Class mechanics…
    • Attend the online Office Hour on Tuesdays at 3 PM
    • via tokbox-Discuss previous week’s video lecture
    • Online video lecture e-mailed every Wednesday-view
    • lecture and prepare to discuss the following Tuesday
    • Comment on video lecture using website discussion
    • board
    • Online Final Exam given 12/16/2009
    bio 1.0
  • 3. Lecture 9: The ecosystem bio 1.0
  • 4. Communities and Ecosystems: http:// www.youtube.com/watch?v = GYrZEid_BeM bio 1.0
  • 5. Take Homes:
    • Ecosystems
    • II. Food webs
    • III. Biomes
    • IV. Niches
    • V. The biosphere
    bio 1.0
  • 6. Ecosystems : http:// en.wikipedia.org/wiki/Ecosystem bio 1.0
  • 7. Central concept of ecosystems: Central to the ecosystem concept is the idea that living organisms interact with every other element in their local environment. http:// en.wikipedia.org/wiki/Ecosystem bio 1.0
  • 8. Take Home I Ecosystems Ecosystems describe the networks of interactions between all organisms and their environments… bio 1.0
  • 9. Food webs: http:// en.wikipedia.org/wiki/Food_web bio 1.0
  • 10. Bill Nye the Science Guy- Food Web: http:// www.youtube.com/watch?v =7lmvBWEqusk http:// www.youtube.com/watch?v = rnIOTMpydpg http:// www.youtube.com/watch?v =T_vyDFW0TVU bio 1.0
  • 11. Photosynthesis: http:// www.youtube.com/watch?v =03TM6vp9HPk bio 1.0
  • 12. Take Home II Starting with energy from the Sun being converted to sugar via photosynthesis food webs describe the energy flow from microbes to humans in the planetary ecosystem… Food webs bio 1.0
  • 13. Biomes: http:// en.wikipedia.org/wiki/Biome bio 1.0
  • 14. Biomes video: http:// www.youtube.com/watch?v =ag5ATGEplbU bio 1.0
  • 15. Take Home III Biomes are climatically and geographically defined areas of ecologically similar climatic conditions such as communities of plants, animals, and soil organisms, and are often referred to as ecosystems. Biomes are defined by factors such as plant structures (such as trees, shrubs, and grasses), leaf types (such as broadleaf and needleleaf), plant spacing (forest, woodland, savanna), and climate. Biomes bio 1.0
  • 16. Niche: http:// en.wikipedia.org/wiki/Ecological_niche bio 1.0
  • 17. Ecological Niche of Brine Shrimp: http:// www.youtube.com/watch?v =cjylhrA6AmA bio 1.0
  • 18. Take Home IV A niche is how an organism makes a living. Niches bio 1.0
  • 19. Biosphere: http:// en.wikipedia.org/wiki/Biosphere bio 1.0
  • 20. DISH TV channel 212: bio 1.0
  • 21. Biosphere video: http:// www.youtube.com/watch?v =_ iRhSrwWcKQ bio 1.0
  • 22. Chlorophyll monitoring from space: http://earthobservatory.nasa.gov/GlobalMaps/view.php?d1=MY1DMM_CHLORA bio 1.0
  • 23. Take Home V The biosphere is the global sum of all ecosystems on Earth. The biosphere bio 1.0
  • 24. Next Week: Computers in biology An overview of the use of computers in biology and the revolution they have caused… bio 1.0
  • 25. instructor Mark E Minie PhD [email_address] bio 1.0