Populations and succession

A population is a group of organisms of the same species occupying a particular space at a particular time that can potentially interbreed.

In any ecosystem relationships are dynamic, usually moving from colonisation (pioneer) to climax communities in a process known as succession.

At each stage in succession certain species may be recognised which change the environment so that it becomes more suitable for other species with different adaptations. The new species may change the environment in such a way that it becomes less suitable for the previous species.

A range of factors will affect the dynamic equilibrium of ecosystems and the process of succesion and conservation of habitats frequently involves management of succession.

A level biologists need to be able to explain what is meant by succession, often with examples from provided case studies.

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