RENR 205 Study Guide - Midterm Guide: Aspilia, Toxoplasmosis, Phloem
10 May 2016
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= ratio of a population size from one time point (t) to the next geometric growth for populations with discrete generations example 1 if year 1 n=100 and year 2 n=150. = 150/100=1. 5 equaling an annual increase rate of 50% example 2 if =1. 7 and in year 1 n=100. What is n in year 3? year 2 n=100 x 1. 7=170 year 3 n=170 x 1. 7=289. , r, and population size changes changes in population size calculating population growth rates from birth(b) and death(d) rates r=b-d. 50000/5000= 10 per year age structure influences population growth rate if age classes differ in the death rate and in their fecundity, age distribution will affect population growth. Reef: the age structure of a population is defined by the proportions of individuals in the various age classes. Life tables can be used to model addition or removal of individuals for example: management of a fisheries.
