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Teacher Notes

Teacher Notes. This PPT was revised June 11, 2007. It is an introduction to competition, predation and symbiosis to be used prior to Simply Symbiosis, Predator-Prey Activity, and Community Interactions.

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Teacher Notes

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  1. Teacher Notes • This PPT was revised June 11, 2007. • It is an introduction to competition, predation and symbiosis to be used prior to Simply Symbiosis, Predator-Prey Activity, and Community Interactions. • The initial section of TEKS Simply Symbiosis has a place for brief notes on the PPT for responsive teaching.

  2. Community Interactions Competition PredationSymbiosis

  3. Competition • Organisms of the same or different species attempt to use the same ecological resource (food, water, space) in the same place at the same time E lk Herd Bison Moose

  4. Two different butterfly species feeding on the same flowers Two organisms want the same thing Competition Tiger Swallowtail butterfly Blue Butterfly

  5. Interaction in which one organism captures and feeds on another organism Predation predator Falcon prey Ground Squirrel

  6. Predation • Grizzlies prey upon salmon Grizzly Bear

  7. rabbit coyote Predation • Rabbit and Coyote Arctic Hare What’s happening in this graph? Coyote

  8. Ultimate Predator? • Why is man sometimes called the “Ultimate Predator”?

  9. TRY THIS! Follow teacher instructions.

  10. Any relationship in which two species live closely together is called symbiosis (“living together”) Mutualism Commensalism Parasitism Symbiosis

  11. Both organisms benefit Examples: Flowers and insects Ants and aphids Mutualism Bee on Purple Flower Ant and Aphid

  12. Lichen Algae and fungus living together Mutualism Lichen

  13. One member of the association benefits and the other is neither helped nor harmed. Examples: Spanish moss Commensalism Spanish Moss

  14. Whales & Barnacles (and lice) Commensalism Whale Barnacles Barnacles on Whale

  15. Commensalism • Epiphytes “air plants” Epiphyte in Tree Epiphyte

  16. One benefits; one harmed Examples: tapeworms inside mammals; fleas, ticks, and lice on mammals Parasitism Female Head Lice

  17. Ticks The parasite obtains all or part of its nutritional needs from the other organism, the host. Parasitism Before After Blacklegged Tick: An adult female blacklegged tick, engorged after a blood meal, rests on a leaf. Black Legged Tick

  18. Mistletoe More than just a “kissing catalyst” Parasitism Mistletoe

  19. X Y X Y helped harmed unaffected X Y X Y Symbolizing Symbiosis • Can you identify the interactions? -/- +/+ competition mutualism +/- +/0 parasitism (predation) commensalism

  20. TRY THIS! • On your notebook paper create a concept map. Include terms of symbiosis, definitions and examples.

  21. Works Cited • Whale barnacles - Christopher M. Callahan, Humboldt State University http://www.humboldt.edu/~cmc43/ectoparasites.html • Barnacles on Whale – Baja Jones Adventure Travel http://www.greywhale.com/photo.htm • Grizzly Bear – Mineral Management courtesy of GeekPhilosopher.com http://geekphilosopher.com/bkg/anGrizzlyBearFish.htm • Female Head Louse – Center for Disease Control and Prevention. http://www.dpd.cdc.gov/dpdx/HTML/HeadLice.asp?body=Frames/G-L/HeadLice/body_HeadLice_diag1.htm

  22. Works Cited • Lichen - Sharnoff, Stephen & Sylvia. (No Date). The Lichen Photo Gallery. Retrieved May 25, 2005 from the World Wide Web: http://www.lichen.com/portraits.html Used by permission. • Artic Hare – U.S. Fish & Wildlife courtesy of GeekPhilosopher.com http://geekphilosopher.com/bkg/anArcticHare.htm • Coyote – National Park Service courtesy of GeekPhilosopher.com http://geekphilosopher.com/bkg/anCoyote.htm • Ground Squirrel – U.S. Fish & Wildlife courtesy of GeekPhilosopher.com http://geekphilosopher.com/bkg/anGroundSquirell.htm

  23. Works Cited • Falcon – Bureau of Land Management courtesy of GeekPhilosopher.com http://geekphilosopher.com/bkg/birdFalcon.htm • Tiger Swallowtail Butterfly - Bureau of Land Management courtesy of GeekPhilosopher.comhttp://geekphilosopher.com/bkg/butterflyTigerSwallowtail.htm • Karner Blue Butterfly - U.S. Fish & Wildlife courtesy of GeekPhilosopher.comhttp://geekphilosopher.com/bkg/butterflyKarnerBlue.htm

  24. Works Cited • Elk Herd.Bureau of Land Management courtesy of GeekPhilosopher.com http://geekphilosopher.com/bkg/anElkHerd.htm • Moose. EPA courtesy of GeekPhilosopher.comhttp://geekphilosopher.com/bkg/anMoose.htm • Bison.USDA courtesy of GeekPhilosopher.comhttp://geekphilosopher.com/bkg/anBuffalo4.htm • Bee on Purple Flower. BigFoto.com http://www.bigfoto.com/themes/nature/flowers/flower-bee-8j6.jpg • Ant and Aphid. John Walker, used by permission, July 6,2003, Animal Magnetism, Retrieved June,12. 2007 from the World Wide Web http://www.fourmilab.ch/images/animal_magnetism/fourmis_pucerons.html

  25. Works Cited • Spanish Moss . J.S. Peterson @ USDA-NRCS PLANTS Database, USDA-NRCS. 2005. The PLANTS Database (http://plants.usda.gov). National Plant Data Center, Baton Rouge, LA 70874-4490 USA http://plants.usda.gov/cgi_bin/topics.cgi?earl=plant_profile.cgi&symbol=TIUS&photoID=tius_001_ahp.jpg • Black Legged Tick .Scott Bauer,USDA courtesy of Junglewalk.com. http://www.junglewalk.com/frames.asp • Mistletoe. US Forest Servicehttp://www.fs.fed.us/r6/rogue/swofidsc/dmistletoe/dmistletoe.htm • Epiphyte in Tree , Epiphyte. Karen Shepherd. Belize trip 2006. Used by permission.l l

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