Primary and secondary succession
Download
1 / 6

Primary and Secondary Succession - PowerPoint PPT Presentation


Primary and Secondary Succession Ecological Succession Ecosystems are constantly changing in response to natural and human disturbances. As an ecosystem changes, older inhabitants gradually die out and new organisms move in, causing further changes in the community. Primary Succession

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha

Download Presentation

Primary and Secondary Succession

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript



Ecological succession l.jpg
Ecological Succession

  • Ecosystems are constantly changing in response to natural and human disturbances.

  • As an ecosystem changes, older inhabitants gradually die out and new organisms move in, causing further changes in the community.


Primary succession l.jpg
Primary Succession

  • Occurs on new lands where no soil exists

  • The first species to populate the area are called pioneer species.

    Picture shows

    plant growth on new

    lava


Secondary succession l.jpg
Secondary Succession

  • When a disturbance of some kind changes an existing community without removing the soil

    • Examples: wildfires burn woodlands


The four pictures show succession in a small area in new york l.jpg
The four pictures show succession in a small area in New York.

1.) In which stage is grass mostly found?

2.) The grasshopper sparrow is so named because of what it eats. Why do you think it is mostly found in stage 1?

3.) What new species appears in Stage 3? What can you hypothesize about this species based on the four pictures?

4.) By Stage 4, what type of vegetation has taken over?

5.) How did the trees change the environment, making it less favorable for the grasses to grow?

6.) Which animal survived in all stages of this succession? Why?


Environmental change and how it impacts ecosystem stability l.jpg
Environmental Change and How it Impacts Ecosystem Stability York.

In your groups research your assigned topic. What happened? In which biome did the even occur? How did it effect the environment? How has the environment changed as a result of the dynamic environmental change? Include information on succession. Provide a 3 minute presentation for the class. Every member must speak!


ad
  • Login