BIO 2129 Lecture Notes - Lecture 10: Mechanised Agriculture, 1918 Flu Pandemic, Lorenz Curve
21 Oct 2016
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Also huge spike in total amount of fossil fuel used. Body mass as x value, density as y value, find average population density. Humans have 1000x more abundance than other species with comparable body size (1kg) Structures to shelter humans from limiting constraints found in nature. Humans keep getting larger, resources go from big to small. In around 1955, most agriculturally nice places have been exploited. Space from 1955 to 1985 has not changed much, but productivity has increased. Productivity increased so much that it has exceeded human population growth until recently. >1 person added per second, 1 hectare of agricultural land is lost every 7. 67 seconds. Can analyze population growth per continent over time. Decline in mortality rate, no decline in birth rates -- > increase of growth. In 1300, life expectancy drop down to 18 due to plague, most of the time was 30-40. Just a few mutations away from a regular flu.
