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State two observation made by German naturalist, Alexender von Humboldt during extensive explorations in South American Jungles.

 

 

 

 
 
 
 
 

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German naturalist and geographer Alexander von Humboldt during his extensive explorations in South American jungles made two observations-

(i) within a region species richness increased with increasing explored area, but only up to limit.

(ii) The relationship between species richness and area for a wide variety of taxa (angiosperm plants, birds, bats, freshwater fishes) turns out to be a rectangular hyperbola.

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Priyanka Kumari

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