|Scientific name||Ammophila arenaria duneland|
|Common name||Marram duneland|
Download full pdf synopsis: DU1B
Ammophila arenaria forms the vast majority of the vegetation in this duneland community, although cover here is often incomplete with areas of bare sand occurring between the tall tussocks. There are no other constant species. Elytrigia juncea and Festuca rubra are frequent, the former lingering from an earlier seral stage whilst the latter colonises more stabilised sands. Occasionally, one will encounter the yellow flowers of Hypochaeris radicata, Taraxacum officinale agg. and Senecio jacobaea, but they are seldom plentiful.
This is the classic coastal community of mobile (or white) dunes found between embryonic dunes to the seaward and fixed dunes to the landward, or in blow-outs. Ammophila arenaria traps wind-blown sand leading to the formation of dunes that can be several metres high.
No sub-communities are described.
Ammophila arenaria can also be abundant in the DU2A Ammophila arenaria – Festuca rubra duneland, but there it is usually co-dominant with Festuca rubra and accompanied by a number of fixed dune species.
This community corresponds to EU HD Annex I habitat 2120 Marram dunes (white dunes). It is very species-poor.
Mobile dunes are unstable habitats and part of the dynamic duneland system. They may be naturally removed by storms and high tides. Anthropogenic impacts include recreation and modification of the coastline.