The future of biodiversity abbreviated

458 views

Published on

Published in: Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
458
On SlideShare
0
From Embeds
0
Number of Embeds
13
Actions
Shares
0
Downloads
6
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

The future of biodiversity abbreviated

  1. 1. The Future of Biodiversity William F. Laurance Centre for Tropical Environmental and Sustainability Science James Cook University Cairns, Australia
  2. 2. What is Biodiversity?
  3. 3. Richness of Species
  4. 4. Biomes Ecosystems Communities Species Subspecies Populations – Genetic variation – Demographic variation – Behavioral variation
  5. 5. Within-species variation Tiger salamanders Anemonefish calls Amphidromus snails Crimson rosellas
  6. 6. Biomes Ecosystems Communities Species Subspecies Populations – Genetic variation – Demographic variation – Behavioral variation
  7. 7. Ecological interactions & co-evolution
  8. 8. How Much Biodiversity?
  9. 9. ?
  10. 10. Terrestrial vertebrates relatively well known Scheffers, Joppa, Pimm & Laurance (2012) Trends in Ecology & Evolution
  11. 11. Fungi Species (millions) 10 8 6 4 2 0 Known Lower Upper
  12. 12. 30 25 Species (millions) Insects 20 15 10 5 0 Known Lower Upper
  13. 13. Species (millions) Deep-sea Species 10 8 6 4 2 ? 0 Known Lower Upper
  14. 14. Why So Much Confusion?
  15. 15. ‘Missing’ species are different!
  16. 16. Hard to find! Scheffers, Joppa, Pimm & Laurance (2012) Trends in Ecology & Evolution
  17. 17. Many are restricted endemics Number of known restricted-endemic frogs in Brazil
  18. 18. Many are ‘cryptic’   DNA Barcoding uses 1-2 fast-evolving genes to discriminate species  Very powerful with advances in DNA sequencing speed  Astraptes fulgerator complex Morphology often misleading 60% of species now described from cryptic complexes
  19. 19. Where is the Biodiversity?
  20. 20. Global diversity of higher plants Highest diversity: -wet tropics -Mediterranean regions
  21. 21. Global centers of species endemism Highest endemism: -isolated & smaller -distinctive
  22. 22. What is the Future of Biodiversity?
  23. 23. Critical factor: Fate of the Biodiversity Hotspots >1500 endemic plants, >70% habitat loss Myers et al. (2000) Nature; Mittermeier et al. (2004) Hotspots Revisited.
  24. 24. Growing Pressures on Hotspots Forest loss is fastest in hotspot nations with higher population growth and lower human development (Dja & Bawa 2006) Cincotta et al. (2000) Nature
  25. 25. Another critical factor: Fate of protected areas Eastern Bolivia
  26. 26. Laurance et al. (2012) Nature
  27. 27. Parks are not islands Rabi Reserve, Gabon Bukit Palong National Park, Malaysia
  28. 28. How much biodiversity will we lose
  29. 29. Public forum Debating the Tropical Extinction Crisis National Museum of Natural History Washington, D.C. 13 February 2009
  30. 30. Many ‘missing species’ will be imperiled  Concentrated in hotspots and tropical regions  Many are restricted endemics
  31. 31. Functional extinctions Apex predators Big animals Old-growth trees
  32. 32. Ecological distortions & biotic homogenization Opportunists Disturbance-lovers Invaders
  33. 33. Great loss of genetic variation
  34. 34. Biodiversity is Invaluable  TEEB Pavan Sukhdev & colleagues Myriad natural products  Germ plasm for food crops  Pharmaceuticals  Ecosystem resilience  Pollination services  Carbon storage  Tourism
  35. 35. It’s not just about protecting nature -- it’s about ensuring we have a livable world
  36. 36. Thank you

×