A biodiversity hotspot is a region that is both rich in unique species and significantly threatened by human activities. To qualify as a hotspot, an area must contain at least 1,500 species of vascular plants as endemics, meaning they are not found anywhere else in the world. Additionally, it must have lost at least 70% of its original habitat.
These regions are crucial for conservation efforts because they support a high number of species, including many that are endangered. Protecting biodiversity hotspots, such as the Amazon Rainforest or the Madagascar region, is essential for maintaining ecological balance and ensuring the survival of various species.