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प्रश्न
Explain, giving three reasons, why tropics show greatest levels of species diversity.
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उत्तर
The tropics exhibit the greatest levels of species diversity for these reasons:
- High solar energy: As there is more food available in tropical areas, which receive more solar radiation, productivity and biodiversity are higher.
- Stable climate: In the tropics, less seasonal change encourages niche specialisation, which makes it possible for more species to coexist.
- Evolutionary history: As tropical places have not been significantly impacted by glaciation, organisms have had more time to evolve and diversify.
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संबंधित प्रश्न
What is the significance of the slope of regression in a species-area relationship?
Latitudinal and altitudinal gradient is shown by which of the following habitat(s)?
In the equation: log S = log C + Z log A , S= species richness; Z = slope of line (regression coefficient); A = area; C = Y intercept. For smaller area, the value of Z ranges from ____________.
Species richness - area relationship is given by ______.
Which of the below mentioned regions exhibit lees seasonal variations?
Which one of the following is not a major characteristic feature of biodiversity hot spots?
There is greater biodiversity in tropical /subtropical regions than in temperate region. Explain.
Species diversity decreases as we move away from the equator towards the poles. What could be the possible reasons?
Tropical regions show greatest level of species richness because -
- Tropical latitudes have remained relatively undisturbed for millions of years, hence more time was available for species diversification.
- Tropical environments are more seasonal.
- More solar energy is available in tropics.
- Constant environments promote niche specialization.
- Tropical environments are constant and predictable.
Choose the correct answer form the options given below:
Which of the following environmental conditions becomes harsher as altitude increases on a mountain slope?
