Ecological Relationships

What is a niche?

• Organism's use of resources and its functional role in a community
• When multiple organisms seek the same limited resource
• Ability to survive and reproduce under changing environmental conditions
• An individual of one species hunts captures and kills another individual of another species

What is competition?

• Process by which 2 species evolve in response to changes in each other
• Relationship in which one organism depends on another
• Animals that feed on plants
• Relationship in which one species benefits and the other is unaffected

What is predation?

• long lasting and physically close relationship in which at least 1 organism benefits
• Relationship in which 1 organism depends on another
• When organisms produce their own food
• An individual of one species hunts captures kills and consumes an individual of another species

What is parasitism?

• Relationship in which one organism depends on another(the host)
• Relationship in which 2 or more species benefit
• Relationship in which 1 species benefits and the other is unaffected
• When organisms produce their own food

What is mutualism?

• When organisms only eat plants
• Relationship in which 2 or more species benefit
• Organisms eat plants only
• Relationship in which 1 species benefits and the other is unaffected

What is commensalism?

• Relationship in which 3 species benefits
• Relationship in which one organism eats another
• Relationship in which 1 species benefits and the other is unaffected
• When 1 organism relies on another for life

What is herbivory?

• Organisms that only eat meat
• Organisms that eat meat and plants
• Organisms that only eat plants
• Organisms that only eat at diners