Many farmers removed the hedgerows between their fields during the twentieth century. Some farmers are now paid to plant new hedgerows and to leave a margin of wild plants around each field.
Explain how planting hedgerows and leaving field margins increases the biodiversity of farmland.
Suggest why some farmers do not want to leave a margin around each field.
Use this example to explain what is meant by conflicting pressures on programmes to maintain biodiversity.
84 exam-style questions on AQA GCSE Biology 7.3 Biodiversity and the effect of human interaction on ecosystems, covering 7.3.1 Biodiversity, 7.3.2 Waste management, 7.3.3 Land use, 7.3.4 Deforestation, 7.3.5 Global warming, and 7.3.6 Maintaining biodiversity. Each one has a worked solution and a mark scheme showing where the marks go.