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8 Cards in this Set
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- Back
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current trend of extinction
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past 100 years, 1000x more than before humans
if follow- will be the 6th great wave of extinction estimate 1-10% loss each year |
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vertebrae chauvinism
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vertebrae have most diversity but more attention to mamals
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difficulty with attaining data
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90% species remain unnamed- therefore if dont know species exist, will not know how fast disapear
everyone agree that situation is disasterous but dont know how disasterous |
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flaws with fossils
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only the strongest are fossilized
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area problem
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when we look at species, we only look at specific areas, we dont look at all areas that they exist in
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extinction rate
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12-55% increase
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re-wilding north america
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promote preservation of large wild vertebrates
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maintenance of cheetah, asian elephants and lions
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in captivity in US
give them a real habitat captives use for re-wilding reintroduce to N.AM not geneticall identical to what was in pleistocene time so could be disease problems would have to take HUGE precautions |
