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प्रश्न
There is greater biodiversity in tropical /subtropical regions than in temperate region. Explain.
उत्तर
- Speciation is generally a function of time, unlike temperate regions subjected to frequent glaciations in the past, tropical latitudes have remained relatively undisturbed for millions of years and thus, had a long evolutionary time for species diversification.
- Tropical environments, unlike temperate ones, are less seasonal, relatively more constant and predictable. Such constant environments promote niche specialisation and lead to greater species diversity.
- There is more solar energy available in the tropics, which contributes to higher productivity; this in turn might contribute indirectly to greater diversity.
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संबंधित प्रश्न
Short answer type question
Tropical regions exhibit species richness as compared to polar regions. Justify.
Which of the following hypothesis states: Rich species diversity leads to lesser variation in biomass production over a period of time.
Latitudinal and altitudinal gradient is shown by which of the following habitat(s)?
On a log scale the relationship of species richness and area becomes linear (straight line) and is given by the equation.
Which of these is true about tropical environments?
Which one of the following is not a major characteristic feature of biodiversity hot spots?
Is it possible that productivity and diversity of a natural community remain constant over a time period of, say one hundred years?
Species diversity decreases as we move away from the equator towards the poles. What could be the possible reasons?
The relation between species richness and area for a wide variety of taxa appears as ______.
Which of the following hypothesis suggests that ecosystems are like aeroplanes where flight safety (ecosystem functioning) may or may not be compromised, depending upon which species are being lost?
