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प्रश्न
Discuss one example, based on your day-to-day observations, showing how loss of one species may lead to the extinction of another.
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उत्तर
In case a species (x) becomes extinct, the plant and animal species (M, N, O, Z) associated within an obligatory way also become extinct. For example.
- When a fish species which is a host for a number of parasites becomes extinct the parasite species which are uniquely dependent on the host fish will also become extinct.
- The insects may be polyphagous (feed on more than one plant species) or monophagous (feed on only one particular plant species) in nature. The monophagous insect species are valuable and may become extinct if the plant species upon which it feeds becomes extinct.
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संबंधित प्रश्न
Dodo bird, stellar sea cow and passenger pigeon are few examples of extinction due to ______.
Which among the following is/are the type( s) of extinction of species?
Which among the following is a TRUE statement?
Currently, ______ mass extinction is considered to be the progressing at an alarming rate due to the loss of biodiversity.
Which among the following is an in situ conservation method for national genetic resources?
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
What could have triggered mass extinctions of species in the past?
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.
Enlist two criteria that are used to identify a region for maximum protection as 'Biodiversity hotspots'.
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?
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 ______.
Decline in the population of Indian native fishes due to introduction of Clarias gariepinus in river Yamuna can be catogoriesd as ______.
What is ex-situ conservation?
Red Data Book is maintained by ______.
What are the reasons for loss of biodiversity?
Damage to biodiversity takes place due to natural reasons which includes the following EXCEPТ:
