Species richness is also function of the area of a region; the species area relationship is generally __________ function.
A
parabolic
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B
linear
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C
sigmoid
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D
rectangular hyperbolic
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Solution
The correct option is D rectangular hyperbolic The species-area relationship or species-area curve describes the relationship between the area of a habitat, or of part of a habitat, and the number of species found within that area. According to AV Humboldt, species richness is also function of the area of a region (directly proportional). The species richness increases upto a certain limit with increase in area of exploration. The graph obtained generally reflects rectangular hyperbolic function.