BIOLOGY 1M03 Lecture Notes - Lecture 1: Kuznets Curve, Holocene Extinction, Sub-Saharan Africa
11 Dec 2015
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Document Summary
In class we discussed the finding that there is evidence for gene flow with other hominins based on ancient dna studies. Non-african humans carry different genomic regions from the. Different people inherited different bits of genome. Human demography: the study of characteristics of human populations, such as size, growth, density, distribution, and vital statistics. Time between putting a billion people has gotten smaller and. Global population growth rate maximum occurred around 1970: Absolute annual, increase in people peaked in 1990: 86 million smaller. We are getting old: before 2000, young people outnumbered old people; after 2000 old people out number young people. Urbanization: before 2010, rural people outnumbered urban people; after 2010 urban outnumber rural. By 2050, ~70% of people may live in urban areas. Growth of developing world: in 1950 the lesser developed world had 2x number of people than the developed world; by 2050 there will be 6x the number of people in the lesser developed world.
