SPECIES INTERACTIONS

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SPECIES INTERACTIONS
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COMPETITION

• What do organisms compete for?

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2 Types of Competition

• Intraspecific
• Occurs between members of the same species
• Interspecific
• Occurs between members of different species.

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COMPETITION
GAUSE
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(No Transcript)
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C O N N E L L
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REDUCING COMPETITION BY RESOURCE PARTITIONING
MacArthur
Different species need same resources
Finches
BATS EAT THE INSECTS IN THE AIR, LIZARDS EAT
THE INSECTS ON THE GROUND
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Resource Sharing can lead to CHARACTER
DISPLACEMENT
Differences develop between similar species due
to competition
Similar species need similar or same
resources Large beaked can eat all size seeds,
but will eat larger to reduce competition With
those that can only eat small or medium
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PREDATION
and
and
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Species Interactions Predator - Prey

• Predator/Prey Relationships
• Cheetah and Wildebeest http//www.youtube.com/watc
  h?vrXO3h6bpEUUfeaturerelated
• Baboom/Flamingo http//www.youtube.com/watch?vb99
  5_dC6iDM

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Physiological
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Structural

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Coral Snake Scarlet King (venomous)
(non-venomous)   Red next to Black - safe for
JackRed next to Yellow - kill any fellow.
Viceroy Monarch (edible) (inedible)
Mimicry

• Mimic Octopus
• http//www.youtube.com/watch?v7Zh50pfG7d8

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Cryptic Coloration
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PLANT - HERBIVORE
Carrion Flower
Poison Ivy
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Plants for Medicinal Purposes
Good sleep Laxative (skin) Diarrhea (no skin)
Soothes Or laxative
anemia
cleanser
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SYMBIOSIS

• 3 types
• Parasitism
• Mutualism
• Commensalism

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PARASITISM
Ectoparasites
Endoparasites

• Maggots in my head http//www.youtube.com/watch?v
  V2Ac6RYSvo8featurechannel
• Parasite in Lungs http//www.youtube.com/watch?v
  Im_5xQu5GbAfeaturechannel

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MUTUALISM

• Caterpillar and ant http//www.youtube.com/watch?v
  z3bWqlPLpMg
• Buffalo and Egret http//www.youtube.com/watch?v
  8BEKrc-aXF8

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COMMENSALISM

• Shark and Remora http//www.youtube.com/watch?ve4
  xrdeagyYM

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SUCCESSION
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Primary Succession

• http//www.pbs.org/wgbh/nova/nature/crisafulli-bla
  st-zone.html

• http//www.youtube.com/watch?vk03vxRYsJ4Y

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Secondary Succession