Succession Succession is refers to the development of plant communities over time- from empty land to a climax community Diversity will increase and the community can support more complex food webs 2 Types Primary- When communities start from nothing Secondary- After organisms have been destroyed but soil remains eg-forest fire Plants C- Colonisers - grow on bare rocks Eg. Lichens and mosses P pioneer species - grow very quickly, spread their seeds and die eg- grasses and ferns Pioneers when they die and are broken down, organic matter is added to the soil As time passes plant species become larger and more complex Human activities affect succession- eg. regularly ploughing fields, clearing land , deforestation
Succession is refers to the development of plant communities over time- from empty land to a climax community
Diversity will increase and the community can support more complex food webs
2 Types
Primary- When communities start from nothing
Secondary- After organisms have been destroyed but soil remains eg-forest fire
Plants C- Colonisers - grow on bare rocks
Eg. Lichens and mosses
P pioneer species - grow very quickly, spread their seeds and die eg- grasses and ferns
Pioneers when they die and are broken down, organic matter is added to the soil
As time passes plant species become larger and more complex
Human activities affect succession- eg. regularly ploughing fields, clearing land , deforestation