Why do the tropics have greater biological di | vedclass

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(D) Ecologists and evolutionary biologists have proposed various hypotheses to explain why the tropics have greater biological diversity:$(a)$ Speciat

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(D) Ecologists and evolutionary biologists have proposed various hypotheses to explain why the tropics have greater biological diversity:$(a)$ Speciation is generally a function of time. Unlike temperate regions,which were subjected to frequent glaciations in the past,tropical latitudes have remained relatively undisturbed for millions of years,providing a long evolutionary time for species diversification.$(b)$ Tropical environments,unlike temperate ones,are less seasonal and relatively more constant and predictable. Such constant environments promote niche specialization and lead to greater species diversity.$(c)$ There is more solar energy available in the tropics,which contributes to higher primary productivity. This,in turn,contributes indirectly to greater species diversity.

Why do the tropics have greater biological diversity?

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$A$: Tropical regions are more diversity-rich in comparison to temperate areas.
$R$: Availability of more solar energy directly contributes to higher productivity and species richness in these areas.

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