Uploaded on

 

  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
    Be the first to like this
No Downloads

Views

Total Views
512
On Slideshare
0
From Embeds
0
Number of Embeds
0

Actions

Shares
Downloads
13
Comments
0
Likes
0

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1.  
  • 2. GOALS OF CONVENTION ON BIODIVERSITY
    • > 100,000 plant/animal species lost in last 5 years
    • Habitat loss is biggest current threat to biodiversity
    • Deforestation and forest degradation has increased
    • since the Rio Earth Summit
    “ The conservation of biological diversity, the sustainable use of its components and the fair and equitable sharing of the benefits arising out of the utilization of genetic resources” “ Biodiversity is a common concern of humankind and an integral part of the development process”
  • 3. BIODIVERSITY
    • How many species are there?
    • -- 1.4 million named species (70% of which are invertebrates)
    • -- 3 to 50 million species alive!
    • -- Only 10 to 15% live in North America
  • 4.  
  • 5.  
  • 6.  
  • 7.  
  • 8. WHAT THREATENS BIODIVERSITY?
    • Background extinction (95% of all extinctions)
    • Mass extinction
  • 9. BIODIVERSITY
    • 1 mammal species
    • every 400 years
    • 1 bird species/200 yrs
    • Now…………...
    • 10,000 times the
    • background rate!
    • 20-75 plant/animal
    • species each day?
    Background rates
  • 10. ENDANGERED VS THREATENED Threatened: population low but extinction less imminent Endangered: nos so low that extinction imminent
  • 11. BIODIVERSITY
    • 1. Small (localized) range
    • 2. Extensive range but significantly modified by humans
    • 3. Island dwellers (limited immigration; isolated evolution free from competitors, predators and diseases and thus fewer defences when introduced)
    • Low reproductive success
    • Large (easily hunted)
    • 1973 ESA: 1,254 species on E and T list (9% inv)
  • 12. THE GREATEST THREAT
  • 13. BIODIVERSITY http://www.nesarc.org/ http://www.stopextinction.org/ http://www.audubon.org/campaign/esa/esa.html http://endangered.fws.gov/