Question

Observe the graph and select the correct option: 

• A. Line ‘A’ represents \( S = CA^2 \)
• B. Line ‘B’ represents \( \log C = \log A + Z \log S \)
• C. Line A represents \( S = CA^Z \)
• D. Line B represents \( \log S = \log Z + C \log A \)

Hint:

In a logarithmic form, the species-area relationship is expressed as: \[ \log S = \log C + Z \log A \] which forms a straight-line equation when plotted on a log-log scale.

Answer 1

The Correct Option is C

The species-area relationship follows the equation: \[ S = C A^Z \] where: 
- \( S \) is species richness, 
- \( A \) is the area, 
- \( C \) and \( Z \) are constants. 
This equation, proposed by Alexander von Humboldt, suggests that species richness increases with area but not linearly.