Match the columns I and II, and choose the correct combination from the options given.
Column I
Column II
Taxonomic group
Value of ‘Z’
1.
Plants in Britain
a.
0.1 to 0.2
2.
Birds in California
b.
0.6 to 1.2
3.
Mollusc in New York
c.
0.2 to 1.2
1 2 3
Match the columns I and II, and choose the correct combination from the options given.
|
|
Column I |
|
Column II |
|
|
Taxonomic group |
|
Value of ‘Z’ |
|
1. |
Plants in Britain |
a. |
0.1 to 0.2 |
|
2. |
Birds in California |
b. |
0.6 to 1.2 |
|
3. |
Mollusc in New York |
c. |
0.2 to 1.2 |
1 2 3
The correct option is D a a a
Introduction to Z
Z is the regression coefficient or the slope of the curve obtained when a graph is plotted to represent the relationship between species richness and area. The relationship between species richness and area given by Alexander von Humboldt says that within a region, species richness increases with increasing explored area only up to a certain limit.
The value of Z (slope of the line) lies in the range of 0.1 to 0.2, irrespective of the species, taxonomic group or the area of the region.
Plants in Britain - 0.1 to 0.2
The value of Z for the curve showing the species area relationship of plants in Britain lies between 0.1 to 0.2.
Birds in California - 0.1 to 0.2
As the value of Z does not depend on the taxonomic group or the area of the region, it lies in the range of 0.1 to 0.2 for birds in California.
Mollusc in New York - 0.1 to 0.2
The value of Z for the graph representing the species area relationship of molluscs in new York lies between 0.1 to 0.2.
Correct match
Column I
Column II
Taxonomic group
Value of ‘Z’
1.
Plants in Britain
a.
0.1 to 0.2
2.
Birds in California
a.
0.1 to 0.2
3.
Mollusc in New York
a.
0.1 to 0.2
Final answer
(D) 1 2 3
a a a
Introduction to Z
Z is the regression coefficient or the slope of the curve obtained when a graph is plotted to represent the relationship between species richness and area. The relationship between species richness and area given by Alexander von Humboldt says that within a region, species richness increases with increasing explored area only up to a certain limit.
The value of Z (slope of the line) lies in the range of 0.1 to 0.2, irrespective of the species, taxonomic group or the area of the region.
Plants in Britain - 0.1 to 0.2
The value of Z for the curve showing the species area relationship of plants in Britain lies between 0.1 to 0.2.
Birds in California - 0.1 to 0.2
As the value of Z does not depend on the taxonomic group or the area of the region, it lies in the range of 0.1 to 0.2 for birds in California.
Mollusc in New York - 0.1 to 0.2
The value of Z for the graph representing the species area relationship of molluscs in new York lies between 0.1 to 0.2.
Correct match
|
Column I |
Column II |
||
|
Taxonomic group |
Value of ‘Z’ |
||
|
1. |
Plants in Britain |
a. |
0.1 to 0.2 |
|
2. |
Birds in California |
a. |
0.1 to 0.2 |
|
3. |
Mollusc in New York |
a. |
0.1 to 0.2 |
Final answer
(D) 1 2 3
a a a
