Mechanisms of succession

The first organisms to reappear after an ecosystem is damaged.

• Abiotic Community

• Pioneer species

• Succession

• Biomass

The gradual change that comes to an ecosystem as it matures.

• Biomass

• Abiotic Succession

• Ecological Succession

• Pioneer Species

The progression of life in an area that starts with soil.

Example: after a forest fire.

• Biomass

• Pioneer Species

• Primary Succession

• Secondary Succession

Development or accidents that change an ecosystem.

• Human Impact

• Natural Disaster

• Ecological Resistance

• Lichen

Natural disruptions to ecosystems such as hurricanes, floods, drought or volcanoes.

• Biogeography

• Pioneer Species

• Human Impact

• Natural Disaster

What is the goal of the pioneer species in Primary Succession?

• To kill the dead materials after a disaster
• To rebuild soil
• To feed Johnny
• To put fresh oxygen into the air

What are examples of pioneer species in a primary succession?

• Bushes and Shrubs
• Oak trees
• Mossess and Lichens 
• A rose Bush

What is the correct order from oldest (happened first) to youngest (happened last) in this pond succession?

• A, B, C, D
• D, C, B, A
• B, A, D, C
• C, D, A, B

Reaches a climax community quicker because soil is already present

• primary succession 
• secondary succession
• both types of succession

Final illustration (#8) shows

• pioneer species
• climax community
• only biotic factors
• only abiotic factors