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September 12, 2012

September 12, 2012. What is a density-dependent limiting factor? Give an example. What is a density-independent limiting factor? Give an example. September 13, 2012. What are the three types of symbiotic relationships? Give an example for each. Essential Question.

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September 12, 2012

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  1. September 12, 2012 • What is a density-dependent limiting factor? Give an example. • What is a density-independent limiting factor? Give an example.

  2. September 13, 2012 • What are the three types of symbiotic relationships? Give an example for each.

  3. Essential Question What are the different relationships/interactions that occur among organisms within populations?

  4. http://www.google.com/imgres?q=hawk&um=1&hl=en&biw=1366&bih=553&tbm=isch&tbnid=eEId2k6kq4iBtM:&imgrefurl=http://animals.nationalgeographic.com/wallpaper/animals/photos/raptors/red-tailed-hawk/&docid=al8WmRJnRUIq4M&w=989&h=742&ei=WR-JTvjAMMji0QHa9-2nBQ&zoom=1&iact=hc&vpx=716&vpy=245&dur=945&hovh=194&hovw=259&tx=147&ty=130&page=8&tbnh=161&tbnw=229&start=89&ndsp=12&ved=1t:429,r:9,s:89http://www.google.com/imgres?q=hawk&um=1&hl=en&biw=1366&bih=553&tbm=isch&tbnid=eEId2k6kq4iBtM:&imgrefurl=http://animals.nationalgeographic.com/wallpaper/animals/photos/raptors/red-tailed-hawk/&docid=al8WmRJnRUIq4M&w=989&h=742&ei=WR-JTvjAMMji0QHa9-2nBQ&zoom=1&iact=hc&vpx=716&vpy=245&dur=945&hovh=194&hovw=259&tx=147&ty=130&page=8&tbnh=161&tbnw=229&start=89&ndsp=12&ved=1t:429,r:9,s:89 http://www.google.com/imgres?q=field+mouse&start=32&num=10&um=1&hl=en&biw=1366&bih=553&tbm=isch&tbnid=5LdhvDfAYQHSyM:&imgrefurl=http://www.biolib.cz/en/taxonimage/id3797/&docid=wUZhV3bHN_HgJM&w=600&h=461&ei=8R6JTrLfEef20gHrrsEL&zoom=1&iact=hc&vpx=899&vpy=218&dur=361&hovh=197&hovw=256&tx=122&ty=109&sqi=2&page=4&tbnh=154&tbnw=200&ndsp=12&ved=1t:429,r:10,s:32

  5. http://www.neotropicalbirds.org/FG_BroadWingedHawks.html http://true-wildlife.blogspot.com/2011/02/eagle.html

  6. http://www.google.com/imgres?q=sea+anemone&start=22&num=10&um=1&hl=en&biw=1366&bih=553&tbm=isch&tbnid=ewLDkfnlgzbDQM:&imgrefurl=http://www.britannica.hk/zoology/sea-anemone-378070.html&docid=l7E_IbijzQ_cPM&w=340&h=250&ei=BCCJTqjwE-r10gHWrsH3Dw&zoom=1&iact=rc&dur=429&sqi=2&page=3&tbnh=153&tbnw=226&ndsp=10&ved=1t:429,r:7,s:22&tx=153&ty=88http://www.google.com/imgres?q=sea+anemone&start=22&num=10&um=1&hl=en&biw=1366&bih=553&tbm=isch&tbnid=ewLDkfnlgzbDQM:&imgrefurl=http://www.britannica.hk/zoology/sea-anemone-378070.html&docid=l7E_IbijzQ_cPM&w=340&h=250&ei=BCCJTqjwE-r10gHWrsH3Dw&zoom=1&iact=rc&dur=429&sqi=2&page=3&tbnh=153&tbnw=226&ndsp=10&ved=1t:429,r:7,s:22&tx=153&ty=88 http://www.free-extras.com/search/2/cooked+fish.htm

  7. Competition • Occurs when two individuals occupy the same niche. • Attempt to use the same resources

  8. Predation • When an organism feeds on another organism • Example: bats eating insects, snakes eating mice, etc.

  9. What is symbiosis? • Symbiosis is any relationship where two species live on or near each other. The term literally means “living together”.

  10. Mutualism • Remember the sea anemone and clown fish… • In mutualism, both species benefit from the relationship

  11. Another Example of Mutualism • While the flower provides the bee with food—nectar, the bee assists the flower with reproduction through pollination. • Both species benefit (+,+) http://www.dreamstime.com/royalty-free-stock-photo-bee-pollinating-a-flower-image13930965

  12. Commensalism • In commensalism, one species benefits while the other is neither helped nor harmed • (+,0)

  13. Commensalism • Barnacles will attach themselves to a whale’s skin. The barnacles perform no known service for the whale, nor do they harm it. However, the barnacles benefit from the constant movement of water past the whale, b/c the water carries food particles for them.

  14. Commensalism • The cattle not only attract insects themselves, but they stir them up while grazing providing a meal for the egrets. The cattle seem unaffected by the presence of the egrets. (+, 0) http://www.itsnature.org/air/birds-air/cattle-egret/

  15. Parasitism • In parasitism, one organism lives on or inside another organism and harms it. • (+,--)

  16. Parasitism • Ticks live on the bodies of their hosts (mammals), feeding on their blood and skin. These parasites cause pain and skin irritation for the host, and they can also transmit harmful diseases to the host. (+,--) http://fleatickss.com/2011/08/26/picture-of-a-tick/

  17. Now let’s take a quiz!!

  18. Impala and Red-billed Oxpecker • Predation • Mutualism • Commensalism • Parasitism

  19. OOPS….Try Again! • http://streetsmartsukhumvit.multiply.com/journal/item/304

  20. Correct!! http://www.picturesofsmileyfaces.info/

  21. Orchids and Trees • Parasitism • Mutualism • Commensalism • Competition

  22. OOPS….Try Again! • http://streetsmartsukhumvit.multiply.com/journal/item/304

  23. Correct!! http://www.picturesofsmileyfaces.info/

  24. Humans and Guinea Worms • Parasitism • Mutualism • Predation • Commensalism

  25. OOPS….Try Again! • http://streetsmartsukhumvit.multiply.com/journal/item/304

  26. Correct!! http://www.picturesofsmileyfaces.info/

  27. Eyelash mites…you can run but you can’t hide!

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