Insular biogeography

（重定向自Island Biogeography）

This diagram shows the effect of an island’s distance from the mainland on the amount of species richness. The sizes of the two islands are approximately the same. Island 1 receives more random dispersion of organisms. While island number two, since it is farther away, receives less random dispersion of organisms.

This diagram shows the effect of an island’s size on the amount of species richness. The diagram shows two islands equidistant from the mainland. Island 1 receives less random dispersion of organisms. While island 2 receives more of the arrows and therefore more random dispersion of organisms.

Total number of reptilian and amphibian species on seven small and large islands in the West Indies

Insular biogeography is a field within biogeography that examines the factors that affect the species richness of isolated natural communities. The theory was originally developed as island biogeography, to explain species richness of actual islands, principally oceanic. Under either name it is now used in reference to any ecosystem (present or past) that is isolated due to being surrounded by unlike ecosystems, and has been extended to mountain peaks, oases, fragmented forest, and even natural habitats isolated by human land development. The field was started in the 1960s by the ecologists Robert H. MacArthur and E. O. Wilson, who coined the term island biogeography in their theory, which attempted to predict the number of species that would exist on a newly created island.

单词	Island Biogeography
释义	Island Biogeography 原声例句雅思高频场景听写训练 Studies of this field boomed soon after the publication of MacArthur and Wilson's seminal Theory of island biogeography in 1967. 1967 年麦克阿瑟和威尔逊开创性的岛屿生物地理学理论发表后，这一领域的研究迅速蓬勃发展。英语百科 Insular biogeography （重定向自Island Biogeography） Insular biogeography is a field within biogeography that examines the factors that affect the species richness of isolated natural communities. The theory was originally developed as island biogeography, to explain species richness of actual islands, principally oceanic. Under either name it is now used in reference to any ecosystem (present or past) that is isolated due to being surrounded by unlike ecosystems, and has been extended to mountain peaks, oases, fragmented forest, and even natural habitats isolated by human land development. The field was started in the 1960s by the ecologists Robert H. MacArthur and E. O. Wilson, who coined the term island biogeography in their theory, which attempted to predict the number of species that would exist on a newly created island.
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