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प्रश्न
Explain the rivet Popper hypothesis.
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उत्तर
According to Rivet Popper’s hypothesis by Paul Ehrlich, it describes the effect of loss of biodiversity on the ecosystem. Removal of rivets (species) by passengers on a plane may not affect the safety of flight initially but as more and more rivets are removed, it becomes weak. Removal of rivets of a critical part like a wing (species performing major ecosystem functions) will pose a very serious immediate threat to the safety of the flight. In an ecosystem, various species act as rivets and the role of each species is important and well defined.
संबंधित प्रश्न
The species diversity of plants (22 per cent) is much less than that of animals (72 per cent). What could be the explanations to how animals achieved greater diversification?
Very Short Answer Type Question:
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Which is not a biotic community among the following?
______ is not oviparous.
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Greater biological diversity of tropics than temperate regions is due to the ______.
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Samson and Dorothy surveyed two islands, ‘A’ and ‘B’. They recorded the relevant data in the following format in their research folder:
| Parameter | Island A | Island B | |
| (a) | Area (A) | 45 × 103 Km2 | 12 × 105 Km2 |
| (b) | Regression co-efficient (Z) | 1 | 1 |
| (c) | Y-intercept | 20 | 10 |
- Derive the species-richness for each island.
- Which island exhibits greater biodiversity? Support your answer with a reason.
