The sand dunes at Aberffraw on Anglesey are the site of many biology field trips looking at colour variation in the shells of the banded snail and the violas growing there. They are also a brilliant example of how the marram grass creates stable habitats. The roots of marram grass are fibrous and dense and form a stable place for other species to live.The tough leaves of marram are rolled so they do not lose water in the windy exposed conditions( classic o level biology stuff)
The dunes are well worth an good exploration at Aberffraw.
NATURE TABLE EXPLORER 