Small scale ecosystem - sand dunes

What are sand dunes?

A hill or ridge beyond the reach of tides that form from sand over many years

What process forms sand dunes?

Succession

How are sand dunes formed?

Prevailing wind blows loose sand which is deposited on obstacles and this build up causes the ridge making sand dunes

What is placed on sand dunes to stabilise them?

Marram grass

Sand dune threats

Tourism, extreme weather, burrowing animals, vegetation, invasive species, urban development and construction

How can sand dunes be reconstructed?

Creating sand traps or plant marram grass

How can sand dunes be protected?

Fencing, foot paths, signage and through national parks