Section 2:  Biodiversity at Risk

Chapter 10 Section 2 Presentation
File Size:	570 kb
File Type:	ppt

Download File

---

Key Terms:

• endangered species
• threatened species
• exotic species
• poaching
• endemic species

Main Ideas:

• Many scientists are now concerned that loss of biodiversity is the most challenging environmental issue we face.
• The most common cause of extinction today is the destruction of habitats by humans.  Unregulated hunting and the introduction of nonnative species also contribute to extinctions.
• Certain areas of the world contain a greater diversity of species than other areas.  An important feature of such areas is that they have a large portion of endemic species.
• The United States has a very important role in preserving biodiversity.