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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
Latitudinal and altitudinal gradient is shown by which of the following habitat(s)?
Maximum species richness is observed in the ______.
With reference to graph select the correct alternative
The graph of species richness and area for a number of taxa like angiospermic plants, freshwater fishes, and birds is found to be ______.
Which of the below mentioned regions exhibit lees seasonal variations?
Which of these is true about tropical environments?
A species-area curve is drawn by plotting the number of species against the area. How is it that when a very large area is considered the slope is steeper than that for smaller areas?
The relation between species richness and area for a wide variety of taxa turns out to be a rectangular hyperbola. Give a brief explanation.
Given below is an equation describing the Species-Area relationship between species richness and area for a wide variety of taxa as angiosperm plants, birds, bats etc. S = CAz
- Give a graphical representation of the given equation showing Species-Area relationship.
- What does 'S' represent in the given equation?
- What is the value of 'Z' (regression coefficient) for frugivorous birds and mammals in the tropical forests of different continents?
Who observed that within a region, species richness increased with increasing explored area, to a certain limit?
