Biodiversity

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Biodiversity

• A look at earth and all it has to offer
• dont have to write

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Biodiversity

• Biodiversity All of the organisms on earth (or
  in an ecosystem) added together.

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Types of Diversity

• Ecosystem Diversity Variety of habitats,
  Communities, and ecological processes
• Species Diversity number of different species
• About 1.5 million species identified
• Genetic Diversity Sum total of all forms of
  genetic info carried by organisms

Vs.
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Some good news . . .

• Foja Mountains
• Lost World Found click to go

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Biodiversity as Resource

• Biodiversity is one of Earths greatest natural
  resources!!!
• Species provide us with foods, industrial
  products, and medicines
• including painkillers, antibiotics, heart drugs,
  antidepressants, and anticancer drugs!

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Threats to Biodiversity

• Human activity directly threatens biodiversity!
• Extinction Occurs when a species disapear from
  all or part of its range
• Endangered Species Is in danger of exctinction

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1) Habitat Alteration

• Changing a habitat
• Habitat Fragmentation when development splits
  habitats into pieces.

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Attempting to help
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2) Demand for Wildlife Products
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3) Pollution
Exxon Valdez
Aquatic ecosystems are most susceptible
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• Biological Magnification amount of a harmful
  chemical increase in organisms at higher trophic
  levels in a food web.

DDT fair to prove it is safe!!!!????
Opposite of an Energy Pyramid as it builds up at
each level (lipid soluble)
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4) Introduced Species

• Nonnative not from here
• Invasive Species
• Increase their population rapidly
• New environment lacks the parasites and predators
  that controlled their population in old
  environment.

Russian Knapweed
Colorado potato beetle
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Conservation?!?

• Biodiversity Hotspots the richest and most
  threatened reservoirs of plant and animal life on
  earth!
• Biodiversity Hotspots Webpage click to open