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Mongabay.com is considered a leading source of information on tropical forests by some of the world's top ecologists and conservationists. TROPICAL RAINFORESTS: Disappearing Opportunities

Modern Extinction Estimates



Estimate and Method of estimation

% Global Loss
per decade

10 million sp.
Annual Loss

30 million sp.
Annual Loss

Source

0.2-0.3% annually based on tropical deforestation rate of 1% annually

2-3%

20,000-30,000

60,000-90,000

Wilson
(1989, 1993)

2-13% loss between 1990 and 2015 using species area curve and increasing deforestation rates

0.8-5.2%

8,000-52,000

24,000-156,000

Reid
(1992)

Loss of half the species in the area likely to be deforested by 2015

8.3%

83,000

250,000

Raven
(1988)

Fitting exponential extinction functions based on IUCN red data books

0.6-5%

6,000-50,000

18,000-150,000

Mace
(1994)




Continued: Extinction


Other pages in this section:

Consequences of Deforestation
Erosion
Loss of Renewable Resources
Atmospheric Role
- - - - -
References
References
References
References
References
Local Climate Regulation
Loss of Species, Disease
Climactic Role
Extinction
- - - - -
Kids version of this section
- Why are rainforests important?
- Climate
- Home to wildlife
- Water cycle
- Erosion control
- Extinction


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Copyright Rhett Butler 1994-2015

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