LEC 5b Hotspots.pdf - Biodiversity Hotspots Threats to...

Info icon This preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Biodiversity Hotspots
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Threats to Biodiversity Invasive species Direct exploitation of species Habitat Destruction
Image of page 2
Hotspots British ecologist Norman Myers defined the biodiversity hotspot concept in 1988 to address the dilemma that conservationists face: what areas are the most immediately important for conserving biodiversity?
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Hotspots Are areas featuring exceptional concentrations of endemic species and experiencing exceptional loss of habitat. Each hotspot faces extreme threats and has already lost at least 70 percent of its original natural vegetation These locations make up only 2.3% of the Earth’s total land area, but account for more than 50% of its plant species and 42% of its terrestrial vertebrate species.
Image of page 4
Threats to Biodiversity invasive species Direct exploitation of species Habitat destruction
Image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
25 hotspots 1. Tropical Andes 2. Mesoamerica 3. Caribbean 4. Brazil's Atlantic Forest 5. Choco/Darien/Western Ecuador 6. Brazil's Cerrado 7. Central Chile 8. California Floristic Province 9. Madagascar 10. Eastern Arc and Coastal Forests of Tanzania/Kenya 11. Western African Forests 12. Cape Floristic Province 13. Succulent Karoo 14. Mediterranean Basin 15. Caucasus 16. Sundaland 17. Wallacea 18. Phillipines 19. Indo-Burma 20. South-Central China 21. Western Gnats/Sri Lanka 22. SW Australia 23. New Caledonia 24. New Zealand 25. Polynesia/Micronesia
Image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern