Symbiotic Relationships Species interactions. What is symbiosis? Long term partnership between members of different species.
Post on 29-Dec-2015
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Symbiotic Relationships
Species interactions
What is symbiosis?
• Long term partnership between members of different species
Types of symbiosis
• Parasitism• Mutualism• Commensalism
• Why not predation?• Why not competition between two
organisms of the same species?
Parasitism
• 1 species benefits, 1 is harmed• +1, -1
Blood Suckers
Lampreys
Mistletoe
Tapeworm
Mutualism
• Both species benefit• +1, +1
Cleaner fish
Insects and Flowers
Aphids and Ants
Birds and Livestock
Lichens
Commensalism
• One species benefits, the other is unaffected
• +1, 0
Barnacles and Whales
Hitch Hiking
Nesting in Trees
Conclusion
• What is symbiosis?• What are the 3 types of symbiotic
relationships?• What is Parasitism?• What is Mutualism?• What is Commensalism?
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