Understanding Biodiversity Hotspots in India

A biodiversity hotspot is a biogeographic region with significant levels of biodiversity that is also threatened by human habitation. These regions contain a high concentration of endemic species, which are species found nowhere else on Earth.

To be classified as a biodiversity hotspot, an area must meet two strict criteria:

• It must contain at least 1,500 species of vascular plants as endemics (meaning it has a high percentage of plant life found nowhere else on the planet).
• It must have 30% or less of its original natural vegetation remaining (meaning it is threatened).

Analysing the Given Regions

Let's examine the given options to determine which one is recognized as a biodiversity hotspot:

• Thar Desert: The Thar Desert is an arid and semi-arid region. While it has unique flora and fauna adapted to desert conditions, it does not meet the criteria for a global biodiversity hotspot, particularly in terms of endemic species richness and overall biodiversity compared to rainforests or mountain ranges.
• Western Ghats: The Western Ghats is a mountain range that runs parallel to the western coast of the Indian peninsula. It is known for its high levels of biological diversity and endemism. This region is recognized globally as one of the world's major biodiversity hotspots due to its rich flora and fauna, many of which are found only in this area, and the significant threat it faces.
• Eastern Ghats: The Eastern Ghats is a discontinuous range of mountains along India's eastern coast. While it possesses biodiversity, it is generally less diverse and has lower levels of endemism compared to the Western Ghats and is not classified as a global biodiversity hotspot on the same scale.
• Deccan Plateau: The Deccan Plateau is a large plateau in South-Central India. It is a vast region with varied ecosystems but is not categorized as a single, distinct global biodiversity hotspot. Specific areas within or bordering the Deccan Plateau might have ecological significance, but the plateau as a whole does not meet the hotspot criteria.

Conclusion: Identifying the Hotspot

Based on the criteria and the ecological characteristics of the regions, the Western Ghats region of India is widely recognized as a significant global biodiversity hotspot. It is home to a vast array of plant and animal species, many of which are endemic, and faces considerable ecological threats.

Therefore, the region known as a "HotSpot of Biodiversity" among the given options is the Western Ghats.