To investigate the effects of abiotic factors specifically pH on the abundance of marram grass.

... Aim: To investigate the effects of abiotic factors specifically pH on the abundance of marram grass. Succession is the gradual change in an inhabitable terrain by which organisms are changed and replaced eventually forming a climax community habitable by many organisms. Primary succession begins with a barren terrain is inhabited by a pioneer species which colonises and allows the once inhabitable land to be occupied by other organisms. The succession I will be looking at will begin with a sandy environment, a psammosere. The main pioneer specie here is marram grass (A.arenaria). Pioneer species often have many adaptations that allow them to colonise in an environment that many other organisms couldn't. Marram grass is not different. As it colonises in a psammosere it has many xeromorphic adaptations. The plant is able to stabilise the sand and as it decomposes, it is able to provide nutrients to sand allowing it to become inhabitable

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