-Communities, populations and individual organisms occur in areas where biotic and abiotic factors fall within their range of tolerance.  Abiotic or biotic factors that define whether or not an organism can surviveare limiting factors.

 

-The sequential developement of living communities from bare rock is an example of primary succession.  Seconday succession occurs when communities are disrupted.  Left undisturbed both primary and secondary succession will eventually result in a climax community.

 

Section 3.1 Communities

Define- climax community-

          - limiting factors-

          - primary succession-

          - secondary succession-

          - succession-

Living in the Community-

 -example- there is more than just grass in your front yard-

 - so many communities-

Limiting Factors-

 - Limiting Factors- any biotic or abiotic factors that restrict organisms growth or reproduction-

 - may have direct or indirect affect on another population-

Ranges of tolerances-

 - organisms can only take so much of something-

 - (ex. fish can only take certain ranges of water temperatures befor they get uncomfortable.)-

 Succession: Changes over time-

  -Succession-orderly, natural changes that take place in the community of an organism-

  - primary succession- the colonization of a new area by communities of organisms- slows down after a while

  - climax community- a community at the height of its existance-

  - secondary succession- community changes after a very big interruption like a natural disaster- new things grow where old ones once where.-