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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. - PowerPoint PPT Presentation
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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.
Community Interactions
Competition PredationSymbiosis
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
Bison
E lk Herd
Moose
Competition
Two different butterfly species feeding on the same flowers
Two organisms want the same thing
Blue Butterfly
Tiger Swallowtail butterfly
Predation Interaction in which
one organism
captures and feeds on another organism
predator
prey
Falcon
Ground Squirrel
Predation
Grizzlies prey upon salmon
Grizzly Bear
Predation
Rabbit and Coyote
rabbitcoyote
Arctic Hare
Coyote What’s happening in this graph?
Ultimate Predator? Why is man
sometimes called the “Ultimate Predator”?
TRY THIS!
Follow teacher instructions.
Vocabulary Term Personal Association
Definition Non-Example
Symbiosis
Any relationship in which two species live closely together is called symbiosis (“living together”)
MutualismCommensalismParasitism
Mutualism
Both organisms benefit
Examples: Flowers and insects Ants and aphids
Bee on Purple Flower
Ant and Aphid
Mutualism Lichen
Algae and fungus living together
Lichen
Commensalism One member of the
association benefits and the other is neither helped nor harmed.
Examples:
Spanish mossSpanish Moss
Commensalism Whales &
Barnacles (and lice)
Barnacles on Whale
Whale Barnacles
Commensalism
Epiphytes
“air plants”
EpiphyteEpiphyte in Tree
Parasitism
One benefits; one harmed
Examples: tapeworms inside mammals; fleas, ticks, and lice on mammals
Female Head Lice
Parasitism
Ticks
The parasite obtains all or part of its nutritional needs from the other organism, the host.
Blacklegged Tick: An adult female blacklegged tick, engorged after a
blood meal, rests on a leaf.
BeforeAfter
Black Legged Tick
Parasitism
Mistletoe
More than just a “kissing catalyst”
Mistletoe
Symbolizing Symbiosis Can you identify the interactions?
YX - / - YX + / +
YX + / - YX + / 0
competition
commensalismparasitism(predation)
mutualismhelpedharmedunaffected
TRY THIS!
On your notebook paper create a concept map. Include terms of symbiosis, definitions and examples.
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
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
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.com http://geekphilosopher.com/bkg/butterflyTigerSwallowtail.htm
Karner Blue Butterfly - U.S. Fish & Wildlife courtesy of GeekPhilosopher.com http://geekphilosopher.com/bkg/butterflyKarnerBlue.htm
Works Cited
Elk Herd. Bureau of Land Management courtesy of GeekPhilosopher.com http://geekphilosopher.com/bkg/anElkHerd.htm
Moose. EPA courtesy of GeekPhilosopher.com http://geekphilosopher.com/bkg/anMoose.htm
Bison. USDA courtesy of GeekPhilosopher.com http://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
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 Service http://www.fs.fed.us/r6/rogue/swofidsc/dmistletoe/dmistletoe.htm
Epiphyte in Tree , Epiphyte. Karen Shepherd. Belize trip 2006. Used by permission.l l