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Conservation and Succession

AQA A-level BiologyPopulations in EcosystemsLesson 19 of 20

Conservation is the management of ecosystems so that their biodiversity is maintained. It aims to protect species, their habitats and the ecosystems they are part of. AQA's key point is that conservation of habitats frequently involves management of succession.

Many habitats people value are not climax communities. They are earlier stages of succession. In lowland Britain, heathland, chalk grassland, hay meadows and moorland would all, if left alone, gradually be colonised by shrubs and then trees until they became woodland. The species that depend on these open habitats, such as heather, many orchids, butterflies and ground-nesting birds, would then lose their habitat and disappear from the area.

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