Experts can you you give the decreasing order of the regions for biodiversity?

Dear Student,

Amazon forests > Western ghats of India > Madagascar  > Himalayas

 The Tropical Amazon rain forest in South America has the greatest biodiversity on Earth. The two major measures of species diversity are species richness, that is, the number of species per unit area and species evenness, that is, number of individuals of different species. Species diversity is product of both species richness and species evenness.

Regards