Interrelationships
Working together to remove the bad guy
Symbiosis
• A close relationship between
two different species
Three kinds of symbiosis
1. Mutualism
2.Commensalism
3.Parasitism
In each of these relationship organisms
may provide different benefits.
1.
2.
3.
4.
5.
food
protection
cleaning
transportation
combination of above
Mutualism
• A close relationship where both
organisms benefit
Sharing each others food
Mutualism
Sea Anemone & Clownfish
• The clownfish is protected
from predators by living in
the sea anemone. It
develops immunity by
touching a few tentacles
over time and creates a
mucus covering and
thereby is protected from
that particular sea
anemone’s stinging cells.
• The sea anemone gets food
by having the clownfish
attract predators. The
clownfish also removes
parasites and keeps water
circulating near the sea
anemone.
Mutualism - Remora & Shark
http://en.wikipedia.org/wiki/Image:Nurse_shark_with_remoras.jpg
Commensalism
• A close relationship where one
organism benefits and the
other remains unharmed
(does not benefit).
Inviting a hungry guest to share your food
Egret and Cattle
• The cattle scare up small rodents and insects
that the egret feed on. The egrets don’t
affect the cattle.
www.workingnet.com/.../images/commensalism.jpg
Parasitism
• A close relationship where
one organism benefits and
the other is harmed.
Steals all your food
It would not be wise for a parasite to
kill its host or benefit (food) source
Parasite
Host
• Live on or in other
organisms
• The organism that the
parasite harms
• Example: tick
• Example: dog
What is the niche of a tick?
What is the niche of a tick?
• To be a consumer and feed on
the blood of it’s host
http://www.poandpo.com/s608/ticks_2.jpg
http://www.ihntech.com/pc_plus/images/Tick%20lifecycle.jpg
Name that Symbiotic Relationship
• Mutualism
win/win
• Commensalism
win/doesn’t care
• Parasitism
win/lose
Nitrogen fixing bacteria
on legume plant
http://media-2.web.britannica.com/eb-media/38/6538-004-2E138DF9.gif
Symbiotic
Benefits
Relationship
Harmed
Neither
Benefits or
Harmed
Cat and Tapeworm
http://www.dr-dan.com/tapeworm.htm
Symbiotic
Benefits
Relationship
Harmed
Neither
Benefits or
Harmed
Barnacle and Whale
http://www.cbu.edu/~seisen/ExamplesOfCommensalism_files/image002.jpg
Symbiotic
Benefits
Relationship
Harmed
Neither
Benefits or
Harmed
Honey Bee and Flower
http://plpt-waterquality.net/images/flowerbee.jpg
Symbiotic
Relationship
Benefits
Harmed
Neither
Benefits or
Harmed
Mosquito and Human
http://serc.carleton.edu/images/microbelife/k12/microbes_within/aedes_albopictus.jpg
http://www.bangkokpost.com/media/content/20081230/4165.jpg
Symbiotic
Relationship
Benefits
Harmed
Neither
Benefits or
Harmed
Freshwater Turtle and
Basicladia (green algae)
Two types of symbiosis
1. Just a little algae
OR
2. totally covered in
algae
http://www.hsu.edu/uploadedImages/Biology/basicladia.jpg
Symbiotic
Benefits
Relationship
Harmed
Neither
Benefits or
Harmed