Symbiotic Relationships

Symbiosis

• Relationships between organisms in a community.

• Include both beneficial & harmful relationships

Commensalism

– One species benefits, other not harmed• Barnacle living on whale’s back• Birds & grazing animals • Clown fish and Manta Ray

Mutualism

– Two species live together & both benefit• Tiny fish living within larger fish mouth• Stinging ants & bull’s horn acacias

Parasitism

– One organism lives on or inside another organism & harms it. It needs a host to survive. • Leech • Lice• Tapeworm

Predator and Prey

• Prey – food source• Predator - hunts the prey

Inter Specific Competition

• Is a form of competition in which individuals of Different species compete for the same resource in an ecosystem

• Example: Food

Intra Specific Competition

• Form of competition in which members of the SAME species vie for the same resource in an ecosystem

• Example: food, light, mates