biological classification
Of the 26 biogeographic zones in India, Kerala has three major zones viz., Western Ghats Malabar Plain (5A), Western Ghats Mountains (B) and West Coast (8A). Mangalavanam falls under West Coast (8A) biogeographic zone.

Of the 26 biogeographic zones in India, Kerala has three major zones viz., Western Ghats Malabar Plain (5A), Western Ghats Mountains (B) and West Coast (8A). Mangalavanam falls under West Coast (8A) biogeographic zone.