1. Habitats and Niches

2. This also includes grass and trees. This also includes food.
Habitat
All the biotic and abiotic factors in the area where the organism lives
Where an organism lives
This also includes grass and trees.
This includes water or watering holes.
This also includes food.

3. Ecological Niche
Physical, chemical, and biological factors that a species needs to survive
Includes food, abiotic conditions, and behavior
How an organism lives
How an organism
‘makes a living’

4. Quick Write
A Chihuahua and a Great Dane both want to sleep on a cushion that can only fit one of them. Which one of the dogs do you think would win the fight for the cushion? Why do you think it would win?

5. The Principle of Competitive Exclusion
No two animals can occupy the same niche
WHY?
One of the two species will be better suited
The weaker one will need to change niches or become extinct

6. Niche Partitioning
Two species naturally divide different resources based on competitive advantages
Birds in the tree to the right have divided the tree. They eat different resources and therefore do not have the same niche.
Do they have the same habitat?

7. Summary What is the difference between a niche and a habitat?
Explain how two different organisms can have the same habitat but not the same niche.
Under which level of ecological organization would one find habitat?

8. Habitat and Niche Air temperature an animal can tolerate
Hunting time
Type of food
No other animal can have the same
What an animal needs to survive
Amount of water an animal needs
How an animal
lives
Every animal has one
Watering hole
Grass
Can be shared
Where an animal lives
Trees
Prey