NATS 1840 Lecture Notes - Lecture 2: Coevolution, Radiocarbon Dating, Quaternary
9 Nov 2017
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Nats 1840 lecture 3 anthropomorphic extinctions in the late. Causes of extinction, removal of habitat, predators. Everybody agrees in the last 50 thousand years there was a huge spike in extinction. What they disagree about is why it happened (how many species have gone extinct because of us) Species extinction use a rough number, the approximate cause of extinction is most likely found if the extinction is current. Many large mammals became extinct in the last 50 000 years ( near time , quarternary period) The thesis: all these extinctions happened because of humans. Martin says we hunted them into extinction. You don"t need to have advanced science for extinction to happen. If he is right you don"t need advanced science or technology to cause serious environmental impact, small obviously but still impact. Approximately half of 200 genera of large mammals (100 lb +) lost. Almost all extinctions of wild animals in last 50,000 anthropogenic.
