AS.270.103 Lecture Notes - Lecture 17: Life Table
23 Jan 2017
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Document Summary
Boundaries of a population in terms of how you quantify them and factor them into the population size may or may not be well defined. Unitary organisms start out their lives as zygotes (fertilized egg) and develop as an individual with a determinate form; have predictable developmental phases and die (deaths are well defined) Quantification of births and deaths is important to determine population size. Trees are all connected physically via their root systems (uniform characteristics: hard to quantify the number of individuals (unitary organisms) Primary parameters that determine size are births, deaths, immigration, and emigration. If birth rate and death rate are both high or both low (relatively equal), you have a stable population. However, in developed countries, women are working more and there is more family planning; thus, they are giving birth less: on the other hand, in developing countries, the birth rate exceeds the death rate.
