Question

Which of the following is true about the
regression coefficient Z in case of
the species-area relationship curve?
O
0
( O
O
Z can often vary within a small
geographical area
Z varies only when we consider its value
over a large are alike an entire continent
Z is always constant irrespective of the
area
Z value in tropical rainforests differ from
that of deserts​

Answer 1

Answer:

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 value lies in the range 0.1-0.2.

(ii) if we analyse the species-area relationships among very large areas like the entire continents, we will find that the slope of the line to be much steeper (Z values in the range of 0.6 to 1.2). For example, for frugivorous (fruit-eating) birds and mammals in the tropical forests of different continents, the slope is found to be 1.15.

Z stands for the slope of the line (regression coefficient).