As an expert in environmental science and conservation, I've spent a significant amount of time studying various ecosystems and the challenges they face. One of the critical concepts in this field is the idea of "biodiversity hotspots." These are areas that are both rich in unique species and under threat from human activities. Understanding the number and status of these hotspots is crucial for conservation efforts.

To answer your question about the number of hotspots in the world, we need to look at the most recent data and definitions used by conservation organizations. The term "biodiversity hotspot" is not static and can change as new areas are identified or as the criteria for what constitutes a hotspot evolve.

Step 1: English Answer

The concept of biodiversity hotspots was popularized by Norman Myers in the 1980s and has since been refined by various conservation groups. According to the Conservation International (CI), which is a leading organization in this area, a biodiversity hotspot is characterized by its high level of unique species and the extent to which it has been impacted by human activities.

The reference you provided mentions 34 biodiversity hotspots that have been identified. These hotspots are significant because they once covered **15.7 percent of the Earth's land surface**. However, it's important to note that the status of these hotspots is concerning. **86% of the hotspots' habitat has already been destroyed**, which is a stark reminder of the urgent need for conservation action.

The intact remnants of these hotspots now cover only 2.3% of the Earth's land surface. This reduction in habitat size not only threatens the survival of the species that are endemic to these areas but also has broader implications for global biodiversity.

It's also worth mentioning that the number of hotspots can fluctuate as new areas are discovered, or as existing areas are further assessed for their conservation status. For instance, new scientific research, changes in land use, or the identification of new species can all lead to updates in the list of recognized biodiversity hotspots.

Moreover, the conservation efforts for these hotspots are multifaceted. They involve not only the protection of the natural habitats but also the sustainable use of resources, community involvement, and the development of legal frameworks to prevent further destruction.

In conclusion, while the number of biodiversity hotspots is currently recognized as 34, it's essential to understand that this number is dynamic and subject to change based on ongoing research and conservation efforts. The focus should be on the preservation of these critical areas to maintain the rich tapestry of life on Earth.

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34 biodiversity hotspots have been identified. They once covered 15.7 percent of the Earth's land surface. 86 % of the hotspots' habitat has already been destroyed. The intact remnants of the hotspots now cover only 2.3 % of the Earth's land surface.read more >>