competition in ecosystems
DESCRIPTION
Competition in ecosystems. Relationships in ecosystems Re-cap In a previous lesson 3 different relationships b etween organisms were studied. What were the 3 relationships?. Competition, Predation and Parasitism. What is competition?. Today we are looking at two types of competition: - PowerPoint PPT PresentationTRANSCRIPT
Energy in Ecosystems
Competition in ecosystems
Energy in Ecosystems
Relationships in ecosystemsRe-capIn a previous lesson 3 different relationshipsbetween organisms were studied.
What is competition?
Competition, Predation and Parasitism.
What were the 3 relationships?
Energy in Ecosystems
Today we are looking at two types of competition:
Interspecific and Intraspecific
Success criteria
• Be able to define each one.• Be able to explain the difference between the two.
Energy in Ecosystems
Competition
When does competition occur?
What type of resources do organisms compete for?
When organisms require the same or similar resources
Light, water, food, space, reproductive mates
Competition can be either Interspecific or Intraspecific.
Energy in Ecosystems
Interspecific competition
This occurs between members of different species in an ecosystem who require similar resources.
Examples are red/grey squirrels, brown/rainbow troutThe organisms require similar but not exactly the same resources.
Energy in Ecosystems
Intraspecific competition
This occurs between members of the same species in an ecosystem who require the same resources.
This is often more intense as the same resources areneeded.
Examples are robins in a garden or rabbits in a field.
Energy in Ecosystems
Competition
Collect your question grid and find someone who can answer the question.They must sign your grid.
What is competition? What is intraspecific competition?
What is interspecific competition?
What do plants compete for?
What do animals compete for?
Give an example of each type of competition
Which type of competition is most
intense and why?
Another type of relationship between
organisms?
Another type of relationship between
organisms?
Review with the teacher