NATS 1840 Lecture Notes - Lecture 3: Radiocarbon Dating, Hydraulic Engineering, Human Migration
27 Jan 2016
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Document Summary
(jan 7 th ex is not a recent phenomenon, cause of nature, it could be natural. Extinction even happens if we aren"t here. Many large mammals became extinct in the last 50 000 years. Approximately half of 200 genera of large mammals (100 lb +) Almost all extinctions of wild animals in last 50,000. Extinction not only recent, not solely due to advanced science or. Human migration to new continents, islands, large and small. New species arriving eating the other species. The only thing that fits the pattern is human migration. Overkill thesis, excessive predation, introduction of predators, competitors and disease vectors ( near time , quarternary period) lost anthropogenic technology mammals and birds. Radio-carbon dating, precise estimation of extinction dates. Radio-carbon dating within a few hundred years, sudden or reason. Correlation (happens to happen) and related to each other no. No direct evidence for human hunting 50,000 years ago. Africa and eurasia, co-evolution and fewer extinctions.
