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

2. Communities

3. 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

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

5. What factors would limit these communities?

6. 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.

7. Keystone Species

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

9. 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

10. Primary Succession

11. Secondary Succession

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

14. 
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

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

16. Summary One sentence per topic below: Community Limiting Factors
Keystone species
Succession