It was evident from the sand dunes on Main Beach, that the further you progressed inland, the vegetation became more dense and abundant. There was no plant species present up until the 40 m mark. This in theory was due to the fact that if vegetation were to occur at the beginning of the transect line, they would be impacted by the strong wave action, which contains high volumes of salinity in it, which then affects the nutrients in the sand making it inefficient for plant growth. The spinifex plant was the first identifiable vegetation, and it was only present in the foredunes. They are distributed here as their extensive roots work together to bind the sand. Their positioning along the transect line makes the spinifex subjected to the abiotic factors of wind, making it evident that they have a high sun and wind tolerance.
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In addition, to the abiotic factors, there was also biotic factors which impacted upon growth of the spinifex. This was the biotic factor of crabs, as the spinifex plant is a primary food source for the crabs, this contributes to the lack of it’s vegetation. As you continue to progress along the sand dunes the density and distribution of vegetation increases. An example was the pig face plant, which was present at
In addition, to the abiotic factors, there was also biotic factors which impacted upon growth of the spinifex. This was the biotic factor of crabs, as the spinifex plant is a primary food source for the crabs, this contributes to the lack of it’s vegetation. As you continue to progress along the sand dunes the density and distribution of vegetation increases. An example was the pig face plant, which was present at