Biology Reference
In-Depth Information
Age
Age is the generation number, or the number of bouts of mating for the
population. A population with age 0 includes only the founders as specifi ed
by the user. Age 1 is the fi rst generation generated by the fi rst bout of mating
among members of the founding generation (for which age = 0). The cohort
data for age 1 is derived from only those members of the newest cohort
of offspring produced in that fi rst round of matings. The population data
for age 1 includes that same age 1 cohort data combined with data from
any of the original founders that survive to population age 1 as dictated
by population development constraints set by the user. For example, if the
plants are constrained to be annuals, none of the founders will survive
to age 1, and all of the members of cohort 1 will consist only of newly
established individuals.
Note that the output age refers to the age of the ongoing population
started with the founders given age = 0. However, for tracking purposes,
immediately after a bout of mating, the offspring constituting each newly
created cohort are assigned the initial age = 0, and their age increases by 1
with each passing bout of reproduction, regardless of the age of the entire
population since founding. Thus, when cohort = false, while the output is
reporting statistics for each age of the entire population stemming from the
founders, that population data for each age may contain data combined
from the several different cohorts, each of a different current age.
Mean(pop)
Mean(pop) is the mean population (or cohort when cohort = true) size
averaged across runs for a trial. The size of the founding population (age
= 0) is determined by the user when submitting the Founding Population
specifi cations in the input fi le (see section of same name, above).
Sd(pop)
Sd(pop) is the s.d. of the mean values of the population size at each age
calculated across runs for a given trial.
Mean(alleles)
Mean(alleles) is the average number of unique alleles resident in the
population for a particular age. In other words, it is not a total of all the
alleles on all chromosomes present in a population: each unique allele
may have several copies being passed around as the population develops.
For example, considering only one locus, across all chromosomes in a
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