Due to its central location in England and altitude range from 27 metres in the south to 636 metres in the north, Derbyshire contains many species at the edge of their UK distribution ranges. Some species with a predominantly northern British distribution are at the southern limit of their range, whilst others with a more southern distribution are at their northern limit in Derbyshire. As climate change progresses, a number of sensitive species are now being seen to be either expanding or contracting their range as a result.