a SHREW

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a SHREW
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SYMBIOSIS

• Two species living together in close association.
• (Also called symbiotic relationships)

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3 TYPES OF SYMBIOSIS

• 1. PARASITISM
• 2. COMMENSALISM
• 3. MUTUALISM

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What happens in the relationship for the
different kinds of symbiosis?
Commensalism
Mutualism

• Parasitism

both organisms benefit ,
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PARASITISM

• A symbiotic relationship where the organism lives
  in or on their host and does harm to their
  general well being, sometimes parasites are
  fatal.
• The parasite benefits, the host does not.

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• Ticks

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LEECHES
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Taenia worm in human eye
Worm infects human blood streamHuman may go blind
Parasitism one benefits, one is harmed
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Parasitic Marine Isopods

• Some Marine Isopods attach themselves to fish
  like ticks and suck blood from their hosts.

Parasitism one benefits, one is harmed
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mistletoe
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Rafflesia

• Rafflesia sp., the worlds largest flower, lives
  off of tropical vines in tropical South-east
  Asian rainforests. It lacks leaves, roots, and
  shoots.

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Strangler Fig
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MUTUALISM

• A symbiotic relationship where both organisms
  benefit from the relationship.

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Mutualism both benefit
Moray Eel with Cleaner Fish
Moray Eel gets a clean mouth Cleaner Fish gets a
meal
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Mutualism both benefit
Antelope with Oxbird
Antelope gets rid of parasites Oxbird gets a meal
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Pollinators and Pollinatees
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Lichens
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Corals Zooxanthellae
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Trichonympha protozoan (a flagellate) that lives
in the termite gut.
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mycorrhizal fungi extending from a plant's roots
illustrate this symbiotic relationship,
dramatically increasing a plant's ability to
collect moisture and nutrients
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COMMENSALISM

• A symbiotic relationship where one species
  benefits, the other is not affected positively or
  negatively.

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• Birds nesting in a tree

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Cattle with cattle egrets
Cattle stir up insects as they eat grassEgrets
hang around and eat insects
Commensalism one benefits, one is unaffected
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Neotropical Antbirds

• Antbirds follow army ants as they travel across
  the jungle flow stirring up insects. The birds
  swoop down and eat the bugs that are escaping
  the ants.

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Certain species of millipede and silverfish
inhabit the nests of army ants and live by
scavenging on the refuse of their hosts, but
without affecting the ants.
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Clown fish with anemone
Clown fish gets protection Anemone is unaffected-
some argue that the anemone does have a benefit
Commensalism one benefits, one is unaffected or
Mutualism both benefit
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Epiphytes
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leopard shark with a remora
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Hermit Crab