What is the z value(regression co-efficient) for smaller and larger area.
Answers
Answer:
the great German naturalist and geographer Alexander von Humboldt observed that within a region species richness increased with increasing explored area, but only up to a limit. 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
Ecologists have discovered that the value of Z lies in the range of 0.1 to 0.2, regardless of the taxonomic group or the region (whether it is the plants in Britain, birds in California or molluscs in New York state, the slopes of the regression line are amazingly similar). But, if you analyse the species-area relationships among very large areas like the entire continents, you will find that the slope of the line to be much steeper (Z values in the range
of 0.6 to 1.2).
So the correct option is 'both assertion and reason are incorrect'.
HOPE THE ANS WAS HELPFUL