click below
click below
Normal Size Small Size show me how
Coastal Ecosystems
*Coast Terms* (Especially 4 Geography As)
Term | Definition | Detail |
---|---|---|
Succession | Changes that take place in plant communities over time as conditions change | |
Psammosere | A plant succession that developes on sand dunes | |
Pioneer Species | Species that colonise pristine environments | They need not be very tolerant and flexible eg. SPARTINA on mud flats |
Seral Stage | Stage in succession from colonisation to climax | (blank) |
Sub-climax | Plant community that is inhibited from reaching its climax by natural factors | (blank) |
Plagio-climax | A stable community formed as a result of human activity | (blank) |
Climax | A stable community at the end of a succession that is in balance with prevailing abiotic conditions | (blank) |
Prisere | A succession developing from a bare surface | i.e Mud flats |
Colonisation | The arrival and establishement of plants in an area | (blank) |
Species | Variety of plant that can interbreed with other memebers of a plant group | (blank) |
Successional Processes | Processes that take place in a succession such as colonisation | (blank) |
Mud Flats | Areas of fine silt and sediment deposited by marine action in sheltered zones | (blank) |
Creeks | Shallow tidal inlets associated with mud flats | (blank) |
Embryo Dune | Accumulation of sand that preceeds stable dune formation on which plant colonisation can begin | (blank) |
Fixed dune | Dune that has been stabalised with a climax plant community of psammomere | (blank) |
Dune degradation | Dune damage that often begins with "blow-outs" - frequently initiated by human action | (blank) |