Background Natural England has a statutory duty to act for the benefit of SSSIs, including those on Dartmoor, and to take reasonable steps to further the conservation and enhancement of the SSSIs (Wildlife and Countryside Act 1981 and subsequent amending legislation). Natural England is evidence-led and uses evidence to inform decisions concerning the management of SSSIs. To do this, Natural England – and stakeholders involved in land management – need access to the best available evidenc...