Going Down the Swanee?

The organisation Diversitas has claimed (http://www.guardian.co.uk/environment/2009/oct/11/freshwater-species-under-threat) that animals and plants in freshwater habitats (lakes and rivers) are more threatened than species on land or in the sea. Much of this must be related to the human use of water which is increasing along with human populations and aspirations. Of course, it may be the case that one tends to see effects on 'focused' locations like freshwater bodies before effects are transmitted to 'wider' habitats but the losses are clearly a concern.