VEGETATION CHANGES OVER TIME Is there freeze frame?

"""In order to bring a detailed understanding of the nature and problems of stream and rivers to a wider audience, Sylvia Haslam, doyenne of ecological studies of river environments and their vegetation, and author of a number of ground-breaking books on these topics, has teamed up with artist Tina Bone to produce a series of small A5 books that address individual topics or case studies. These concentrate on the vegetation of ditches, streams and rivers, as the essential indicators of their ecology and health. Despite their small format, these books are in no way designed for children, although a keen teenager with a hunger for natural history in the field could find much to learn from them. These books aim to produce a serious but accessible course in river management, not just for the keen naturalist, but also for the conservation volunteer, the farmer with watercourses on his land and even the professional land manager. The approach is very different from that of the popular, natural history books of Collins New Naturalist Series or Bloomsbury's British Wildlife Collection. The emphasis here is on inspiring and encouraging people to go out specifically to study streams and rivers, to learn to identify aquatic plants and recognise them as indicators of different environments, vegetational communities and water conditions, also to recognise changes and threats to their local rivers and the appearance of introduced or invasive species, or even detect protected freshwater plants. The authors were motivated by the apparent absence of ""'easy-read' books focusing on the river itself and the vegetation belonging to it, and creating the habitat for all else."" Each book has a superabundance of illustrations, some in colour, some in black and white. Their hallmarks are the artistic skill of Tina Bone, and the botanical expertise of Sylvia Haslam based on a lifelong career embracing many listed publications."" Cam Valley Forum, Cambridge."