CK12 Life Science

(Marvins-Underground-K-12) #1

  1. Imagine a forest fire destroyed a forest. The forest will slowly re-establish itself, which
    is an example of what kind of succession?

  2. A glacier slowly melts, leaving bare rock behind it. As life starts establishing itself on
    the newly available land, what kind of succession is this?

  3. Is the climax community look the same in all parts of the world?


Further Reading / Supplemental Links



Vocabulary


climax communities A stable community that is the end product of succession.


ecological succession The continual replacement of one community by another that oc-
curs after some disturbance of the ecosystem.


primary succession Ecological succession that occurs in disturbed areas that have no or
little soil, i.e. after a glacier retreats.


pioneer species The species that first inhabit a disturbed area.


secondary succession Ecological succession that occurs in disturbed areas that have soil
to begin with, i.e. after a forest fire.


Points to Consider



  • Think about what would happen if dangerous toxins were illegally dumped near a
    river?

  • Discuss why it is important to seek alternative energy sources.

  • Do we have an infinite supply of fossil fuels, or can we run out some day?


Image Sources


(1) http://www.flickr.com/photos/takomabibelot/265503235/. CC-BY.
Free download pdf