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प्रश्न
List any two major causes other than anthropogenic causes of the loss of biodiversity.
उत्तर
The two major causes other than anthropogenic causes of the loss of biodiversity are
- Alien Species Invasions When alien species are introduced unintentionally or deliberately into a habitat, some of them can cause the decline or extinction of indigenous species.
- Co-extinctions When a species becomes extinct, the plant and animal species associated with it, in an obligatory way, also become extinct.
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संबंधित प्रश्न
Species that possess a very high risk of extinction due to rapid population decline of about 50 - 70 % over three generations is designated as ______.
Match the following and choose the correct alternative.
| Column I | Column II | ||
| i. | Not evaluated | a. | Pervasive and abundant after careful assessment |
| ii. | Near threatened | b. | Information related to risk of extinction is lacking in some way |
| iii. | Least concern | c. | Described by scientist but not assessed by the IUCN |
| iv. | Data deficient | d. | May meet the criteria for threatened status in the near future |
'The Evil Quartet' is a concept which describes the ______.
Which of the following are major causes of species losses in a geographical region?
Match the animals given in column I with their location in column II:
| Column I | Column II |
| A. Dodo | i. Africa |
| B. Quagga | ii. Russia |
| C. Thylacine | iii. Mauritius |
| D. Stellar's sea cow | iv. Australia |
Choose the correct match from the following:
What is common to the following plants: Nepenthes, Psilotum, Rauwolfia and Aconitum?
Explain as to how protection of biodiversity hot spots alone can reduce up to 30% of the current rate of species extinction.
Though the conflict between humans and wildlife started with the evolution of man, the intensity of conflict has increased due to the activities of modern man. Justify your answer with suitable examples.
What is the sustainable use of resources?
When a species goes extinct in one area, it is often desirable to re-introduce the species from other populations. A major problem with this approach is that ______.
