I have just posted a short piece about landscape change in the Ballengeich area, beside Stirling Castle, on the Research and Reports page of this website. It covers geological, historical and biological change over many millennia each with concrete and visible examples. Take a look here.
John G Harrison is a historian, working on a wide range of topics related to Scottish history, from architecture to wildlife. Take a scroll through the site to find out more. And feel free to contact John or to comment via the blog.