Organism Diversity in Ecosystems<br />12/14/09<br />EQ: How do organisms diversify in an ecosystem?<br />12/13/2009<br />B...
Getting the idea<br />Ecosystems are home to many different organisms.<br />Ecosystems host living and non-living parts.<b...
Getting the idea<br />Ecosystems can host many different organisms because each organism uses the ecosystem differently. <...
Populations & Communities<br />Biotic organizations – <br />Grouped into different levels:<br />Populations<br />Communiti...
Population<br />First level.<br />Group of same species living in the same place.<br />12/13/2009<br />Bitsy Griffin     E...
Population<br />Black tailed deer in a forest<br />12/13/2009<br />Bitsy Griffin     Ecosystems 3<br />
Community<br />All of the organisms that live in a forest<br />Including the black tailed deer<br />12/13/2009<br />Bitsy ...
Habitats & Niches<br />Ecosystems can support many populations.<br />A forest can support<br />12/13/2009<br />Bitsy Griff...
Habitats & Niches<br />The black tailed deer<br />12/13/2009<br />Bitsy Griffin     Ecosystems 3<br />
Habitats & Niches<br />Rabbits<br />12/13/2009<br />Bitsy Griffin     Ecosystems 3<br />
Habitats & Niches<br />Foxes<br />12/13/2009<br />Bitsy Griffin     Ecosystems 3<br />
Habitats & Niches<br />Snakes<br />12/13/2009<br />Bitsy Griffin     Ecosystems 3<br />
Habitats & Niches<br />And many other things because each population has it’s own Habitat.<br />12/13/2009<br />Bitsy Grif...
Habitat<br />The physical space used by a population.<br />Habitat means Home<br />Includes living and nonliving parts of ...
Habitat<br />A black tailed deer’s habitat includes:<br />12/13/2009<br />Bitsy Griffin     Ecosystems 3<br />
Habitat<br />trees<br />12/13/2009<br />Bitsy Griffin     Ecosystems 3<br />
Habitat<br />Rocks <br />12/13/2009<br />Bitsy Griffin     Ecosystems 3<br />
Habitat<br />These are shared with the other animals<br />12/13/2009<br />Bitsy Griffin     Ecosystems 3<br />
Niche<br />Describes lifestyle of animal<br />Includes the habitat<br />AND<br />12/13/2009<br />Bitsy Griffin     Ecosyst...
Niche<br />Climate <br />12/13/2009<br />Bitsy Griffin     Ecosystems 3<br />
Niche<br />Food  <br />12/13/2009<br />Bitsy Griffin     Ecosystems 3<br />
Niche<br />How it behaves<br />12/13/2009<br />Bitsy Griffin     Ecosystems 3<br />
Niche<br />Kestrels and owls <br />12/13/2009<br />Bitsy Griffin     Ecosystems 3<br />
Niche<br />Both carnivorous<br />Eat small mammals like mice & voles<br />12/13/2009<br />Bitsy Griffin     Ecosystems 3<b...
Niche<br />BUT <br />Owls are nocturnal<br />Kestrels hunt in the day<br />12/13/2009<br />Bitsy Griffin     Ecosystems 3<...
Niche<br />They do not compete for food because they don’t hunt at the same time. <br />They have different niches.<br />1...
Competition<br />If two organisms occupy the same niche, <br />They compete for resources<br />12/13/2009<br />Bitsy Griff...
Competition<br />One organism usually becomes more efficient at finding & using resources<br />They other may move or die ...
Competition<br />Rainbow Trout & Brown Trout<br />12/13/2009<br />Bitsy Griffin     Ecosystems 3<br />
Competition<br />They live in the same stream <br />They eat the same food<br />They share a habitat<br />12/13/2009<br />...
Competition<br />BUT they feed in different parts of the stream<br />So they don’t directly compete<br />12/13/2009<br />B...
EQ:<br />How do organisms diversify in an ecosystem?<br />12/13/2009<br />Bitsy Griffin     Ecosystems 3<br />
Questions:<br />What is the physical space occupied by a population called?<br />Habitat<br />12/13/2009<br />Bitsy Griffi...
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Organism Diversity in Ecosystems

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Organism Diversity in Ecosystems

  1. 1. Organism Diversity in Ecosystems<br />12/14/09<br />EQ: How do organisms diversify in an ecosystem?<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  2. 2. Getting the idea<br />Ecosystems are home to many different organisms.<br />Ecosystems host living and non-living parts.<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  3. 3. Getting the idea<br />Ecosystems can host many different organisms because each organism uses the ecosystem differently. <br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  4. 4. Populations & Communities<br />Biotic organizations – <br />Grouped into different levels:<br />Populations<br />Communities<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  5. 5. Population<br />First level.<br />Group of same species living in the same place.<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  6. 6. Population<br />Black tailed deer in a forest<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  7. 7. Community<br />All of the organisms that live in a forest<br />Including the black tailed deer<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  8. 8. Habitats & Niches<br />Ecosystems can support many populations.<br />A forest can support<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  9. 9. Habitats & Niches<br />The black tailed deer<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  10. 10. Habitats & Niches<br />Rabbits<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  11. 11. Habitats & Niches<br />Foxes<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  12. 12. Habitats & Niches<br />Snakes<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  13. 13. Habitats & Niches<br />And many other things because each population has it’s own Habitat.<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  14. 14. Habitat<br />The physical space used by a population.<br />Habitat means Home<br />Includes living and nonliving parts of ecosystem<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  15. 15. Habitat<br />A black tailed deer’s habitat includes:<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  16. 16. Habitat<br />trees<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  17. 17. Habitat<br />Rocks <br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  18. 18. Habitat<br />These are shared with the other animals<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  19. 19. Niche<br />Describes lifestyle of animal<br />Includes the habitat<br />AND<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  20. 20. Niche<br />Climate <br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  21. 21. Niche<br />Food <br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  22. 22. Niche<br />How it behaves<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  23. 23. Niche<br />Kestrels and owls <br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  24. 24. Niche<br />Both carnivorous<br />Eat small mammals like mice & voles<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  25. 25. Niche<br />BUT <br />Owls are nocturnal<br />Kestrels hunt in the day<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  26. 26. Niche<br />They do not compete for food because they don’t hunt at the same time. <br />They have different niches.<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  27. 27. Competition<br />If two organisms occupy the same niche, <br />They compete for resources<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  28. 28. Competition<br />One organism usually becomes more efficient at finding & using resources<br />They other may move or die out<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  29. 29. Competition<br />Rainbow Trout & Brown Trout<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  30. 30. Competition<br />They live in the same stream <br />They eat the same food<br />They share a habitat<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  31. 31. Competition<br />BUT they feed in different parts of the stream<br />So they don’t directly compete<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  32. 32. EQ:<br />How do organisms diversify in an ecosystem?<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />
  33. 33. Questions:<br />What is the physical space occupied by a population called?<br />Habitat<br />12/13/2009<br />Bitsy Griffin Ecosystems 3<br />

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