numerical: endemism index

Question

A biodiversity hotspot has 1,800 plant species, of which 1,260 are endemic. What is the endemism percentage?

RankGuru · Accepted Answer

1. **Definition**: Endemism percentage calculated as the number of endemic species relative to the total number of species in that area.
2. **Calculation**: 
   - $Endemism \ \% = \frac{Endemic \ Species}{Total \ Species} 	imes 100$
   - $Endemism \ \% = \frac{1260}{1800} 	imes 100$
3. **Simplification**: 
   - $\frac{126}{180} 	imes 100 = \frac{7}{10} 	imes 100 = \mathbf{70 \%}$.
4. **Significance**: High endemism is one of the key criteria for designating a 'Biodiversity Hotspot'.

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numerical: endemism index

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