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प्रश्न
Answer the following question:
Substantiate with the help of one example that in an ecosystem mutualists
(i) tend to co-evolve and
(ii) are also one of the major causes of biodiversity loss.
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उत्तर
Mutualists are pairs of the organism that benefit from the interactions between them.
(i) Mutualism between a flower and its pollinator follows co-evolution as the interaction should be safe from "cheating".
A Fig species is pollinated by a particular species of wasp. While the wasp uses the fruit for oviposition and source of nourishment for its larvae, the fig is pollinated by the wasp.
(ii) Since both the participants in the mutualism are linked, a change, anthropogenic or otherwise, affecting one species will consequently also reduce the population of the other species.
Plant-Pollinator interaction is an example of the same. Extinction of the pollinator will reduce the diversity of plant species which is dependent on it. Reduction in the bees population is posing a threat to the diversity of crops.
संबंधित प्रश्न
Acronym for IUCN is ____________.
What do you understand by ‘exotic species’?
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 does 'Red' indicate in the IUCN Red list (2004)?
Of the four major causes for the loss of biodiversity (Alien species invasion, habitat loss and fragmentation, over-exploitation and co-extinctions which according to you is the major cause for the loss of biodiversity? Give reasons in support.
Enlist two criteria that are used to identify a region for maximum protection as 'Biodiversity hotspots'.
Which of the following suits hotspots in ecological terminology?
Decline in the population of Indian native fishes due to introduction of Clarias gariepinus in river Yamuna can be catogoriesd as ______.
The IUCN Red Data List (2004) in the last 500 years documents the extinction of nearly 784 species including ______.
Which one of the following groups faces maximum threat of extinction?
