15
Question
Who observed that within a region, species richness increased with increasing explored area but only upto a limit?
Who observed that within a region, species richness increased with increasing explored area but only upto a limit?
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Solution
The correct option is C Alexander von Humboldt
During his pioneering and extensive explorations in the wilderness of South American jungles, the great German naturalist and geographer Alexander von Humboldt observed that within a regional species richness increased with the increasing explored area, but only up to a limit. In fact, 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. On a logarithmic scale, the relationship is a straight line described by the equation log S = log C + Z log A where S= Species richness A= Area Z = slope of the line (regression coefficient) C = Y-intercept.So, the correct answer is 'Alexander von Humboldt'.
During his pioneering and extensive explorations in the wilderness of South American jungles, the great German naturalist and geographer Alexander von Humboldt observed that within a regional species richness increased with the increasing explored area, but only up to a limit. In fact, 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. On a logarithmic scale, the relationship is a straight line described by the equation log S = log C + Z log A where S= Species richness A= Area Z = slope of the line (regression coefficient) C = Y-intercept.
So, the correct answer is 'Alexander von Humboldt'.
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