Teacher Notes This PPT was revised June 9, 2005. 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 which could be used in regular biology as well.
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Teacher Notes l This PPT was revised June 9, 2005. l It is an introduction to competition, predation and symbiosis to be used prior to Simply Symbiosis,
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Teacher Notes This PPT was revised June 9, 2005. 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 which could be used in regular biology as well.
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
Competition
Two different butterfly species feeding on the same flowers
Two organisms want the same thing
Predation Interaction in which
one organism
captures and feeds on another organism
predator
prey
Predation
Grizzlies prey upon salmon
Predation
Rabbit and Coyote
rabbitcoyote
Ultimate Predator? Why is man
sometimes called the “Ultimate Predator”?
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
Biology, Prentice Hall
www.bigfoto.com
Mutualism Lichen
Algae and fungus living together
Commensalism One member of the
association benefits and the other is neither helped nor harmed.
Examples:
Spanish moss
Commensalism Whales &
Barnacles (and lice)
Commensalism
Epiphytes
“air plants”
Biology, Prentice Hall
Parasitism
One benefits; one harmed
Examples: tapeworms inside mammals; fleas, ticks, and lice on mammals
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
Parasitism
Mistletoe
More than just a “kissing catalyst”
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
Whale lice – Genny Anderson, Marine Science, Santa Barbara City College http://www.biosbcc.net/ocean/marinesci/05nekton/GWsouth.htm
Grizzly Bear – Mineral Management courtesy of GeekPhilosopher.comhttp://geekphilosopher.com/bkg/
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
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.html