what is an ecosystem
- Created by: rima
- Created on: 12-03-14 10:08
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- what is an ecosystem?
- habitats
- distinct set of conditions
- made of micro habitats
- Communities
- includes many populations
- niche is the way an organism exploits its environment
- two species with same habitat will compete with each other
- ecological factors
- Abiotic factors
- non - living or physical factors
- e.g climate such as the temperature rainfall
- Biotic factors
- living factors
- e.g competition, grazing and mutualism
- density dependent
- anthropollogical factors
- arising from human activity
- can be biotic or abiotic factors
- Abiotic factors
- Succession
- Primary succession
- pioneer phase
- pioneer species
- break up the rock surface
- succession continues
- more organic matter builds up
- climax community
- which is stable
- has a dominant species
- pioneer phase
- secondary succession
- existing community is cleared
- plants starts to grow
- Deflected succession
- stable community
- human activity prevents succession from happening
- grazing, mowing, or burning
- Primary succession
- habitats
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