Teacher Notes l This PPT was revised June 9, 2005. l It is an introduction to competition, predation...
-
Upload
ilene-griffin -
Category
Documents
-
view
216 -
download
1
Transcript of Teacher Notes l This PPT was revised June 9, 2005. l It is an introduction to competition, predation...
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.
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
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
Commensalism One member of the
association benefits and the other is neither helped nor harmed.
Examples:
Spanish moss
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
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/
anGrizzlyBearFish.htm
Works Cited
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