Chapter 6 Ecosystems and Ecological Communities
Case Study: The Acorn Connection
 
Western Fence Lizard / Courtesy of  the  American Lyme Disease Foundation (ALDF ).   Adult Ticks and nymphs
The acorn study shows: <ul><li>Environmental Unity! </li></ul><ul><ul><li>Living things: </li></ul></ul><ul><ul><ul><li>ar...
The Ecosystem <ul><li>Critical to understand this concept for good natural resource management </li></ul><ul><ul><li>Yello...
<ul><li>Need to know an ecosystem’s characteristics </li></ul><ul><ul><li>Its structure: biotic and abiotic components </l...
Energy Flow Food webs and food chains
Complexity and Interconnectedness
Keystone Species: Otters
Mmmmm!! Love these sea urchins!
By Frank Wattenberg Now that’s my kind of otter!
Keystone Species <ul><li>Any species which has a large effect on its community or ecosystem </li></ul><ul><li>Otters are a...
Case Study Assignments <ul><li>Read each of three articles and answer the assigned topics: </li></ul><ul><li>The Buffalo <...
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Ch 6 ppt 2010 lecture

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Ch 6 ppt

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Ch 6 ppt 2010 lecture

  1. 1. Chapter 6 Ecosystems and Ecological Communities
  2. 2. Case Study: The Acorn Connection
  3. 4. Western Fence Lizard / Courtesy of the American Lyme Disease Foundation (ALDF ). Adult Ticks and nymphs
  4. 5. The acorn study shows: <ul><li>Environmental Unity! </li></ul><ul><ul><li>Living things: </li></ul></ul><ul><ul><ul><li>are affected by non-living things </li></ul></ul></ul><ul><ul><ul><li>affect non-living things </li></ul></ul></ul><ul><ul><ul><li>are connected by complex relationships, which constantly change </li></ul></ul></ul><ul><ul><li>Humans affect these relationships </li></ul></ul>
  5. 6. The Ecosystem <ul><li>Critical to understand this concept for good natural resource management </li></ul><ul><ul><li>Yellowstone Natl. Park </li></ul></ul><ul><ul><li>Fisheries… </li></ul></ul><ul><li>Must know how everything is interconnected </li></ul>
  6. 7. <ul><li>Need to know an ecosystem’s characteristics </li></ul><ul><ul><li>Its structure: biotic and abiotic components </li></ul></ul><ul><ul><li>Processes: cycling of elements and energy flow </li></ul></ul><ul><ul><li>Change: how is it changing over time? </li></ul></ul>
  7. 8. Energy Flow Food webs and food chains
  8. 9. Complexity and Interconnectedness
  9. 10. Keystone Species: Otters
  10. 11. Mmmmm!! Love these sea urchins!
  11. 12. By Frank Wattenberg Now that’s my kind of otter!
  12. 13. Keystone Species <ul><li>Any species which has a large effect on its community or ecosystem </li></ul><ul><li>Otters are an example </li></ul><ul><li>So are humans…BIG TIME!!!! </li></ul><ul><li>Lets look at some more examples as hwk: </li></ul>
  13. 14. Case Study Assignments <ul><li>Read each of three articles and answer the assigned topics: </li></ul><ul><li>The Buffalo </li></ul><ul><li>Prairie Dogs </li></ul><ul><li>Yellowstone Wolves </li></ul><ul><li>Salmon (pg 113: Answer Qs on pg) </li></ul>

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