In a Radio 4 programme aired in April as part of the Nature series, Brett Westwood explored the growing use of coarse woody debris (CWD) in managing rivers.  

 ''According to Staffordshire Wildlife Trust, fish live in trees too'', says the BBC Radio 4. ''The Trust's biologists are using wood as a remarkably effective tool to change the depth and flow of streams and improve them for wildlife. They don't just stop at streams either: at the confluence of the Tame and Trent rivers, they've submerged entire willow trees in gravel islands in a project to widen the river channel.