Miklos Udvardy
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Miklos Udvardy proposed classification systems of the world for conservation purposes.

Biogeographical Realms system is dividing the Earth's surface into eight ecozones. The Udvardy system also classifies the world into ecosystem types, which he calls biomes.

The original article can be found at: http://en.wikipedia.org/wiki/Miklos_Udvardy.
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