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Habitat fragmentation and gene flow

Habitat destruction is increasing worldwide as the human population expands and consumes more natural resources. Conservation biologist Jonny Miller explains why species that live in fragmented habitats struggle, and what can be done to help them

Figure 1 Fragmentation speeds up habitat destruction because more habitat becomes accessible to humans and machines. The forest interior, which many species need to survive, decreases exponentially as habitat fragments shrink. In this diagram, fragmentation has caused the total forest area to decrease by about 50%, but the forest interior has shrunk by about 95%

AQA Biodiversity within a community; Evolution may lead to speciation

OCR A Biodiversity; Populations and sustainability

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Previous

The virus that stopped the world

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Bioluminescence: advantages for marine organisms

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