Arwyn Owen, Farm Manager, and Sabine Nouvet, National Trust Field Ecologist and Monitoring Officer, on Hafod Y Llan farm, Snowdonia, Wales

Arwyn Owen, Farm Manager, and Sabine Nouvet, National Trust Field Ecologist and Monitoring Officer, on Hafod Y Llan farm, Snowdonia, Wales. The land has been divided into 27 compartments which are analysed to measure the degree to which a habitat is moving towards "favourable condition".