Biodiversity hotspots: the criteria behind the term
A biodiversity hotspot is a region with exceptional endemic plant life that has also lost a large share of its original habitat.
The widely used Conservation International criteria require at least 1,500 endemic vascular plant species and loss of at least 70% of original natural vegetation. The label combines biological uniqueness with severe habitat loss.
What the evidence says
A hotspot is not simply any place with many animals or a large national park. It is a conservation-priority framework based on endemism and threat.
Exam note
For exam revision, retain the key definition and consult the linked primary source when a current rule or technical detail matters.
Editorial note
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Frequently asked questions
What are the two headline criteria for a biodiversity hotspot?
At least 1,500 endemic vascular plant species and at least 70% loss of original natural vegetation.