1. Ecology

2. Competition: The Fight for Resources
Occurs when 2 organisms need the same resources in the same space at the same time.
Can occur among a species or multiple species.
Examples:
2 lions compete for a mate
Lion and Hyena fight over food
Video

3. Results of Competition
What will happen if 2 species use exactly the same resource in the same way?
1. One species will dominate and the other will die off.
2. One species will adapt to use the resource differently or use another resource.

4. Carrying Capacity
The carrying capacity is largest number of individuals an environment can support. Carrying capacity changes when there is an increase or decrease in the number of organisms in an environment.

5. Carrying Capacity
What will happen to the carrying capacity if producers were removed from the population?
What will happen to the carrying capacity if a population is faced with drought?
What will happen to the carrying capacity if a predator was removed from the population?
Carrying capacity will decrease
Carrying capacity will decrease
Carrying capacity will increase

6. Make a Food Chain Seeds  Rabbits  Snakes  Hawks
What would happen to the following if seeds were removed from the above food chain?
Rabbit - Decrease
Hawk - Decrease
Snake - Decrease
Carrying Capacity - Decrease
Will competition increase or decrease? Increase

7. Make a food pyramid Fish – Increase Zooplankton – Decrease
What would happen to each of the following if sharks become extinct?
Shark
Fish
Fish – Increase
Zooplankton – Decrease
Algae – Increase
Zooplankton
Algae