There are an estimated 400,000 ponds in the UK (not including garden ponds). Of these 80,000 ponds (20%) are predicted to be of high ecological value and should be protected.
In the Yorkshire Dales National Park there are 2,124 ponds of an area of 2 hectares or less. As yet we do not know which ones are of high ecological value, however we do know that priority species such as flat sedge, white-clawed crayfish, common toad, grass snake, reed bunting, yellow wagtail, red shank, song thrush, northern lapwing, soprano pipistrelle bat, brown long-eared bat and otter all need good quality pond habitat. Ponds are a priority habitat in the Yorkshire Dales National Park and work is needed to find out their condition.
Half of the UK's ponds were lost in the 20th century and of those that remain 80% are in a poor state.