1. Bellringer
What is the difference between density- dependent and density-independent limiting factors? Give an example of each.
Please add questions and summary to your Population Ecology notes
Summary:
3 things you learned
2 things that you found interesting
1 question

2. Learning Target
Describe the impact of major ecological disturbances on communities and the process of ecological succession.

3. Communities

4. Community  All the populations that live together in a habitat
Habitat is the type of place where individuals of a species typically live
Type of habitat shapes a community’s structure

5. Limiting Factors  - factors that control a population's growth Food
Predators
Temperature

6. What factors would limit these communities?

7. Keystone Species
A species that has a large effect on the ecosystem it lives in.
If a keystone species is removed from an ecosystem will cause a ripple effect across the entire ecosystem, affecting all organisms living in it.
Ex. Beavers- Construct dams, which changes free-flowing stream habitats into ponds, wetlands, and meadows. This creates many habitats for all kinds of different species to live in. Play a crucial role in biodiversity in the ecosystem.

8. Keystone Species

9. Ecological Succession
Ecological Succession
Succession
Changes to a community
What Causes it?
Biotic Factors
Abiotic Factors

10. 2 Types of succession  Primary Secondary From nothing
Even the soil must be “created”
Ex. Volcanic eruptions and glacial retreat
Secondary
From soil
Disaster can strike and make it start over
Ex. Fire, flood, and other natural disasters

11. Primary Succession

12. Secondary Succession

14. Pioneer Species  Species that colonize barren habitats
Lichens, small plants with brief life cycles
Improve conditions for other species who then replace them

15. 
Climax Community
Stable array of species that remains relatively unchanged over time
Contains large woody mature trees
Succession does not always move predictably toward a specific climax community;
other stable communities may persist

16. The trend of Succession
Pioneer stage Climax Community