Final answer:
Marram grass is important for the formation of sand dunes as it prevents erosion, stabilizes the sand, and creates habitats for plant and animal species.
Step-by-step explanation:
Marram grass, also known as Ammophila arenaria, is important for the formation of sand dunes because of its ability to stabilize the sand and prevent erosion. The grass has long, strong roots that can grow up to 5 meters deep into the sand, anchoring it in place and stopping it from blowing away. Additionally, the leaves of the grass trap sand particles and help build up the dune over time.
These dunes are crucial as they provide important habitats for a variety of plants and animals. The stabilized sand dunes create a unique environment where specialized species can thrive. For example, certain plants are adapted to survive in the harsh conditions of the dune, such as the Marram grass itself. In turn, these plants provide food and shelter for insects and small animals.
In summary, Marram grass plays a vital role in sand dune formation by preventing erosion, stabilizing the sand, and creating habitats for a diverse range of plant and animal species.