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AS Geography Coursework Adam Mulley Does biodiversity increase inland at Crymlyn Burrows? This investigation is intended to determine whether or not the hypothesis that biodiversity increases inland at the sand dunes in Crymlyn Burrows. Biological diversity is the variety and variability among living organisms and the ecological complexes in which they occur Diversity can be defined as the number of different items and their relative frequency. For biological diversity, these items are organized at many levels, ranging from complete ecosystems to the chemical structures that are the molecular basis of heredity. Thus, the term encompasses different ecosystems, species, genes, and their relative abundance. Sand dunes are formed naturally over a period of time so long as there is a good supply of sand and powerful onshore prevailing winds to blow dried sand from a large tidal range. The sand dunes develop during a process of psammoseral succession whereby the whole ecosystem eventually...

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