According to Alexander von Humboldt :
1. | Species richness decreases with increasing area of exploration |
2. | Species richness increases with the increasing area, but only up to a limit |
3. | There is no relationship between species richness and the area explored |
4. | Species richness goes on increasing with increasing area of exploration |
In the following, in each set, a conservation approach and an example of a method of conservation are given.
(a) | In-situ conservation - Biosphere Reserve |
(b) | Ex-situ conservation - Sacred groves |
(c) | In-situ conservation - Seed bank |
(d) | Ex-situ conservation - Cryopreservation |
Select the option with the correct match of approach and method:
1. | (a) and (c) | 2. | (a) and (d) |
3. | (b) and (d) | 4. | (a) and (b) |
According to Robert May, global species diversity is about:
1. 20 Million
2. 50 Million
3. 7 Million
4. 1.5 Million
Which of the following regions of the globe exhibits the highest species diversity?
1. | Madagascar | 2. | Himalayas |
3. | Amazon forests | 4. | Western Ghats of India |
Which of the following come under the "Evil Quarter"?
(a) Habitat loss and fragmentation
(b) Over-exploitation
(c) Alien species invasion
(d) Mortality
(e) Competition
Choose the correct answer from the options given below:
1. (a), (c) and (d)
2. (b), (c) and (d)
3. (a), (b) and (c)
4. (a), (b) and (d)
Species Area relationship is described by the following equation.
log S = log C + Z log A
where Z is:
1. Area
2. Species richness
3. Slope of the line
4. Y-intercept
Endemism refers to:
1. Species richness
2. Species evenness
3. Species confined to that region
4. Species diversity