Question

The species - area relationship on a logarithmic scale is described by the equation, log S = log C + Z log A

Match column I with column II and identify the correct option.

• A. 1 - A, 2 - B, 3 - C, 4 - D
• B. 1 - D, 2 - A, 3 - B, 4 - C
• C. 1 - D, 2 - A, 3 - C, 4 - B
• D. 1 - D, 2 - C, 3 - A, 4 - B

Answer 1

The correct option is B 1 - D, 2 - A, 3 - B, 4 - C

Alexander von Humboldt was a German naturalist and geographer who proposed the species - area relationships of an ecosystem. He observed that within a region, species richness increases with increasing explored area, but up to a certain limit.

The relationship plot between species richness and area gives a rectangular hyperbola.


This graph can be represented by the equation, S = CAZ

However, on a logarithmic scale, it is a straight line described by the equation,

log S = log C + Z log A

where S - Species richness
Z - Slope of line (regression coefficient)
C - Y-intercept
A - Area