SymbiosisThe relationship(s) between

organisms within an eco-system.

Mutualism

• This is a win-win relationship

• Both organisms benefit from each other

Commensalism

• This is a win-?? (no one cares) relationship

• One organism benefits, the other one doesn’t care – it isn’t helped or harmed.

Parasitism

• This is a win-lose relationship

• One organism benefits, the other is harmed

tick flea

Digger Bee & Palo Verde

•Mutualism

Gila Woodpecker & Screech Owl

• Commensalism• http://helios.bto.ed.ac.uk/bto/desbiome/

saguaro.htm

• Mutualism

Mexican Long-tongued Bat & Palmer Agave

Phainopepla & Mistletoe

• Mutualism• http://waynesword.palomar.edu/plnov99.htm• http://www.laspilitas.com/California_birds/Silky_flyc

atcher/Phainopepla..html

Cowbird & the Oriole

• Parasitism

Wood Rat & Prickly Pear

•Mutualism• http://www.arizonahighways.com/custom.cfm?name

=c_nature.cfm&secid=33&id=144• http://www.desertusa.com/magoct97/oct_pa/

du_prkpear.html

Cactus Wren & Cholla Cactus

• Commensalism

• http://www.arizonahighways.com/custom.cfm?name=c_nature.cfm&secid=37&id=100

Hummingbird & Ocotillo

• Mutualism

• http://www.desertmuseum.org/pollination/hummingbirds.php

Saguaro & Palo Verde•Commensalism

• http://lowenddslr.com/photos/sabino-canyon-nursery-tree.php

Desert Tortoise / Prickly Pear

• Mutualism

Mistletoe and Mesquite• Parasitism

• http://helios.bto.ed.ac.uk/bto/desbiome/parasite.htm

Mistletoe is a parasite. It lives off of another plant. (They like Mesquite trees)

Javelina and Mesquite

• Mutualism

Gila Woodpecker & Saguaro

• Commensalism

Broomrape & Bursage

• Parasitism

Yucca & Yucca Moth

•Mutualism

• http://waynesword.palomar.edu/ww0902a.htm