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प्रश्न
With the help of any one example explain Alien species invasion as one of the causes of Biodiversity losses.
उत्तर
When a new species gets introduced into any ecosystem accidentally or intentionally, there are chances that it proves harmful for existing species. Sometimes, it can lead to extinction of local species.
In such a case, it is called as invasive species. One of the major reasons of such a harmful effect of alien species is lack of local predator.
- Introduction of predator fish - Nile perch in Lake Victoria proved deleterious for 200 local species of Cichlid fish.
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संबंधित प्रश्न
Which of the following is not a cause for loss of biodiversity?
IUCN means
What is common to the species shown in figures A and B?
 |
 |
| A | B |
List any two major causes other than anthropogenic causes of the loss of biodiversity.
How can you, as an individual, prevent the loss of biodiversity?
How many Biodiversity hotspots have been identified around the world?
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?
Match the species in Column I with its category in Column II.
| Column I | Column II |
| A. Rare species | I. No species |
| B. Vulnerable species | II. Facing a high risk of extinction |
| C. Endangered species | III. Localised species |
| D. Extinct species | IV. Species under threat |
Choose the correct answer from the options given below.
The IUCN Red Data List (2004) in the last 500 years documents the extinction of nearly 784 species including ______.
The sixth extinction in progress currently is different from all previous extinctions on earth as it is ______.
