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)
Endemism refers to:
1. Species richness
2. Species evenness
3. Species confined to that region
4. Species diversity
List-I | List-II | ||
(a) | Sacred groves | (i) | Alien species |
(b) | Zoological park | (ii) | Release of large quantity of oxygen |
(c) | Nile perch | (iii) | Ex-situ conservation |
(d) | Amazon forest | (iv) | Khasi Hills in Meghalaya |
(a) | (b) | (c) | (d) | |
1. | (iv) | (iii) | (i) | (ii) |
2. | (ii) | (iv) | (i) | (iii) |
3. | (iv) | (i) | (ii) | (iii) |
4. | (iv) | (iii) | (ii) | (i) |
The decline in the population of Indian native fishes due to the introduction of Clarias gariepinus in river Yamuna can be categorised as:
1. Co-extinction
2. Habitat fragmentation
3. Over exploitation
4. Alien species invasion
Which of the following is correctly matched?
Column I | Column II | |
1. | aerenchyma | opuntia |
2. | age pyramid | biome |
3. | parthenium hysterophorus | threat to biodiversity |
4. | stratification | population |
Red List contains data or information on?
1. all economically important plants
2. plants whose products are in international trade
3. threatened species
4. marine vertebrates only