Unit 1: Threatened UK Habitats - Broadleaf Woodland

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  • Threatened UK Habitats: Broadleaf Woodland
    • Creation
      • After the last Ice Age as the climate warmed surviving species moves south and colonised
    • Key Features
      • Mostly dominated by deciduous trees e.g. oak, beech
      • Mix of tree species with varied age structure
        • Results in a high biodiversity of other animals and plants
      • Trees regulate water flow in catchment areas and reduce soil erosion
    • Distribution
      • Early Britain was covered completely in broadleaf woodland
        • Humans reduced woodland areas by deforestation
    • Threats
      • Population growth = increased demand for construction and fuel
        • Less sustainable exploitation
      • Clearance for farmland
      • Conifer plantations meet the needs of humans but do not provide such a varied habitat
        • Herbicides used and undergrowth cleared
    • Conservation Measures
      • Coppicing (cutting trees to 6ft) = good habitats for butterflies, insects and dormice
      • Preserving mature trees = valuable for nesting and roosting birds
      • Pollarding (cutting trees to ground level) = protects new growth from grazing


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