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प्रश्न
List any two major causes other than anthropogenic causes of the loss of biodiversity.
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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
What are the major causes of species losses in a geographical region?
Suggest two practices giving one example of each, that help protect rare or threatened species.
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 |
Which among the following is an in situ conservation method for national genetic resources?
What are the major factors that are responsible for the loss of biodiversity? What steps are needed to prevent them?
Which of the following is not a cause for loss of biodiversity?
Match the following columns.
| Column - I | Column - II |
| (i) Dodo | (a) Africa |
| (ii) Ouagga | (b) Russia |
| (iii) Thylacine | (c) Mauritius |
| (iv) Stellar's sea cow | (d) Australia |
Choose the correct match from the following
The extinction of passenger pigeon was due to ______.
Which of the following statements is correct?
What is common to the following plants: Nepenthes, Psilotum, Rauwolfia and Aconitum?
How can you, as an individual, prevent the loss of biodiversity?
There was a loss of biodiversity in the ecosystem due to a new construction project in that area. What would be its impact on the ecosystem? State any three.
List any three major causes of loss of biodiversity.
Western Ghats have a large number of plant and animal species that are not found anywhere else. Which of the following terms will you use to notify such species?
Which one of the following is a pair of endangered species?
Red Data Book is maintained by ______.
Which one of the following groups faces maximum threat of extinction?
Give definitions of Extinct species.
Write any three criteria on which different types of reflexes are based.
