BIOL 2050 Chapter Notes - Chapter 9-10: Mnemiopsis, Exponential Growth, Survivorship Curve
29 Mar 2016
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Reached 6. 8 bilion in 2010 (double the number of ppl in 1960: increased use of energy and resources, now it"s roughly increase 1 billion ppl every 13 years, human population used to be stable until industrial revolution. Recently growth rate has slowed to 1. 18% in crease of 7 billion per year. Concept 9. 1 life tables to show survival, reproductive rates, in age size and life cycle. Demography- study of factors that determine size and structure of population. Summarizes probability that individual will survive and reproduce over the course of life time: info on births, deaths, immigration, emigration to predict future size. Life insurance use census data to construct this to determine premiums to charge customers of different ages. Def: summary of how survival and reproductive rates vary with age: sx= survival rage. Change that individual of age x will survive to age x+1: ix = survivorship.
