INTERRELATIONSHIPS Different ways species can get along, or not get along Predation + - Competition - - Parasitism + - Commensalism + o Mutualism + + +

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Presentation transcript:

INTERRELATIONSHIPS Different ways species can get along, or not get along Predation + - Competition - - Parasitism + - Commensalism + o Mutualism = benefit - = harmed 0 = unaffected e.g., +- means one gains, one loses

INTERRELATIONSHIPS Mutualism Which Type? Both the bee and the plant gain

INTERRELATIONSHIPS Competition Which Type? Both the bobcat and coyote lose when the other eats common food source

INTERRELATIONSHIPS Parasitism Which Type? The parasite gains, the host loses

INTERRELATIONSHIPS Predation Which Type?

INTERRELATIONSHIPS Commensalism Which Type? Snake gains home, rodent unaffected (hole abandoned long ago)

INTERRELATIONSHIPS: Review Mutualism Which Type? Both gain Coyote eats, seeds are dispersed

INTERRELATIONSHIPS: Review Competition Which Type? Both lose available soil moisture

INTERRELATIONSHIPS: Review Commensalism Which Type? Elf owl gains and woodpecker is unaffected Elf owl gains by using abandoned saguaro hole made by woodpecker