Isabella Tree is a conservationist and writer of the award-winning book Wilding: the Return of Nature to a British Farm, which tells the story of rewilding a 3,500 acre farm estate in Sussex, which she oversaw with her husband Charlie.

The adopted daughter of Michael Tree and Lady Anne Cavendish, Isabella grew up in Mereworth Castle in Kent, and then in Shute House, a vicarage in Dorset. Following her expulsion from two secondary schools, she attended Millfield School as a sixth former, where mutual friends introduced her to her future husband. After reading classics at the University of London, she went on to work as a journalist and travel writer for the Evening Standard and The Sunday Times. Her first book, The Bird Man, about the Victorian ornithologist John Gould, was published in 1991. She married Charles Burrell in 1993 and settled at Knepp, a dairy and arable farm in Sussex. She continued to travel, writing books about Papua New Guinea, Nepal and Mexico.

In 2000 Isabella and Charlie closed the farm business at Knepp, and turned the estate into a conservation project, letting the land develop on its own, and eventually introducing free-roaming animals – cattle, pigs, deer and ponies. Two decades later, the project has seen extraordinary increases in wildlife, fungi, and vegetation with extremely rare species like turtle doves, nightingales, peregrine falcons and purple emperor butterflies breeding there. The soil is richer in micro-organisms which help to recapture carbon from the air and promote a functioning ecosystem where nature is given as much freedom as possible.

She lives at Knepp with her husband Charlie and has two children, Ned and Nancy.

DISC ONE: ‘The Whole of the Moon’ by The Waterboys DISC TWO: ‘These Foolish Things’ by Billie Holiday DISC THREE: ‘Life’s a Gas’ by T. Rex DISC FOUR: ‘Where’s the Telephone Bill? by Bootsy’s Rubber Band DISC FIVE: ‘Three Little Birds’ by Bob MarleyDISC SIX: Mozart’s Clarinet Quintet, played by the Brindisi String QuartetDISC SEVEN: BBC Sound recording of Nightingales And Bombers The Night Of The Mannheim Raid DISC EIGHT: ‘Dancing in the Moonlight’ by Toploader

BOOK CHOICE: War and Peace by Leo Tolstoy LUXURY ITEM: Mask, snorkel and a neoprene vestCASTAWAY'S FAVOURITE: These Foolish Things by Billie Holiday

Presenter: Lauren LaverneProducer: Cathy Drysdale