January 11, 2011 - January 11, 2011 February-10-11 3:05 AM...

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Population Ecology 1. The scientific study of the distribution and abundance of organisms: birth, death, immigration, emigration Charles J Krebs definition: - Relative birth and death rates of different types determine evolutionary change - Understanding birth & death rates, ecological consequences --> understanding population growth or decline - Direct implications for humans 2. CO2 emissions α population size (I = PAT) - Declining population = fewer workers to support elders - Increasing population = Large # children (expensive non-productive individuals) - Rapid changes in population require rapid changes in infrastructure - Thomas Malthus & beginning to think about human population 3. Under unchecked condition, population will growth in geometrical ratio. The resource, on the other hand, will only grow arithmetical ratio. - The law of nature state the effects of population growth & resource must be kept equal. Hence, population must be regulated.
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This note was uploaded on 06/20/2011 for the course EHJ EHJ351 taught by Professor Peterabrams during the Spring '11 term at University of Toronto- Toronto.

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January 11, 2011 - January 11, 2011 February-10-11 3:05 AM...

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