How does the location of trees affect the biodiversity of fungi? There are many different species of fungi. The location of fungi and their surroundings have a profound impact on the biodiversity of fungi. Biodiversity is the variety of species in a habitat or ecosystem. The diversity of a species in different locations is because of the theory of island biogeography (Wilson & MacArthur, 1960). The theory states that the size of an oceanic island and its distance from a mainland source of colonizing species influences the number of species present on that island. This means that the distance from a mainland source influences the diversity of species on different islands. This has a similar effect in our forest due to the different abiotic factors found directly next to the path and the middle of the forest. We can compare this to the Theory of Island Biogeography. The location in the middle of the forest that we took our specimens is like the middle of the island, and the specimen near