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Q.What do you understand by 'hotspots'?

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Hotspots are regions on Earth characterised by exceptionally high biodiversity and a significant threat of habitat destruction, making them critical areas for conservation efforts.

The term 'hotspot' in the context of environmental science refers to a specific geographical region that is both rich in biodiversity and under severe threat from human activities. These areas are identified as crucial for global conservation because they harbour a large number of species found nowhere else on Earth, yet face an imminent risk of losing this unique life.

The concept of biodiversity hotspots was developed to help prioritise conservation efforts, as resources for protecting nature are limited. By focusing on these specific regions, conservationists aim to achieve the maximum impact in safeguarding the planet's most irreplaceable and threatened biodiversity.

For an area to be designated as a biodiversity hotspot, it must meet two strict criteria:

  • High Endemism: The region must contain at least 1,500 species of vascular plants as endemics. This means these plant species are native to that particular area and are not found naturally anywhere else in the world. High endemism indicates a unique evolutionary history and a concentration of distinct life forms.
  • Significant Habitat Loss: The region must have lost at least 70% of its original natural vegetation. This criterion highlights the severe threat these areas face, indicating that their ecosystems have been drastically altered or destroyed, pushing many species towards extinction.
Note

While the criterion for endemism specifically mentions vascular plants, the concept of hotspots extends to all forms of life, including animals, fungi, and microorganisms, which also exhibit high endemism in these regions. …

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