Log S = log C + Z log A where S= Species richness A= Area Z = slope of the line (regression coefficient) C = Y-intercept
Which of the following statements about the species-area relationship are NOT correct? S1: The German naturalist and geographer Alexander von Humboldt observed that species richness decreases with increasing explored area in a region. S2: On a logarithmic scale, the relationship between species richness (S) and area (A) is represented by a straight line, given by log S = log C + Z log A. S3: For small areas, the slope of the line (Z) typically falls within the range of 0.6 to 1.2, irrespective of the taxonomic group. S4: For very large areas, such as entire continents, the slope of the species-area curve becomes much steeper than for smaller regions. S5: The Y-intercept (C) in the logarithmic equation of species-area relationship represents the species richness.
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