New Plateau in the Western Ghats

New Plateau in the Western Ghats

News Analysis   /   New Plateau in the Western Ghats

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Published on: January 20, 2023

Source: PIB

Why in News?

Recently, a rare low-altitude basalt plateau discovered in Maharashtra in the Western Ghats can help study the effects of climate change on species survival and increase awareness of the conservation needs of rock outcrops and their immense biodiversity value in the global context.

What are the Important Findings About the Plateau?

Low-Altitude Basalt Plateau: This is the fourth type of plateau to be identified in the region; the previous three are laterites at high and low altitudes and basalt at high altitudes.

Diverse Biodiversity: During the survey of the plateau, 76 species of plants and shrubs from 24 different families were reported. This is considered an important discovery, as the plateau shares the vegetation with the three other rock outcrops, simultaneously holding a few unique species.

This gives a unique model system to study the species' interactions in varying environmental conditions.

About:

  • Western Ghats consists of a chain of mountains running parallel to India’s Western Coast and passing from the states of Kerala, Maharashtra, Goa, Gujarat, Tamil Nadu and Karnataka.
  • The Western Ghats is one of four global biodiversity hotspots in India.
  • The other three are the Himalayas, the Indo-Burma region and the Sundaland (includes the Nicobar Islands).
  • It is recognized as a UNESCO World Heritage Site.

Significance:

  1. The Ghats influence the Indian monsoon weather patterns that mediate the warm tropical climate of the region.
  2. They act as a barrier to rain-laden monsoon winds that sweep in from the south-west.
  3. Western Ghats are home to tropical evergreen forests, as well as to 325 globally threatened species.
  4. Plateaus are the dominant landscapes in the Western Ghats, significant because of the predominance of endemic species.
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