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Tropical Ecology
Islands make up much of the geography in the tropical region. The tropics are a biodiversity hotspot. Species migrate to islands and are able to create new communities and grow and change with their new environments. The equilibrium theory of island biogeography, coined by MacArthur and Wilson in a 1963 article explains that biodiversity on an island is related to the size of the island. Biodiversity increases as the size of the land mass increases and decreases as the size decreases. The theory also states that the biodversity on islands increases the closer the island is to the mainland.