Why more bio diversity of plants and animals is found in Tropical Region as compared to Temperate Region?(5 reasons)

Dear Student

Biodiversity in tropical regions is rich when compared to the temperate regions due to the following reasons:
 

- Tropical environment is less seasonal and almost constant and predictable as compared to temperate environment which support lower extinction rates of species in tropics. Tropical regions also experience more rainfall as compared to temperate regions.

- Greater mean temperature at equator as compared to the poles support survival of more number of species in tropics.

-  Larger areas of tropics can also support larger number of species and also their larger population size.

 - Tropics receive the major part of the solar energy, which contributes to great productivity. Thus, food requirement of more number of organisms are satisfied.

 -Speciation is dependent upon time. Tropical areas have remained undisturbed for millions of years unlike temperate regions, which have experienced frequent glaciations in the past.

Thus, lower rates of species extinction and higher rate of allopatric speciation collectively, also contribute to species richness of tropics.

Regards