Input - Genetic Diversity in Establishing Plant Populations: Founder Number and Geometry

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will provide a mean from 25 replicate re-runs, each using the same initial

input conditions, for analyzed output data values (see below) for both

the cohorts and the populations at each age, with associated standard

deviations.

When testing a new input fi le, users may want to reduce the number

of generations and/or runs to a very low number to see if sensible output

is rapidly produced, indicating that the new input fi le is constructed

properly. Obviously, an increase in generations or runs for a trial increases

computer time.

As will be seen, standard deviation can be used to make assessments of

the comparative risk of implementing one or another species introduction

plan. For example, suppose that two different methods give approximately

the same degree of unique allele retention over 20 generations, but that the

fi rst has twice the retention standard deviation. This suggests that following

the design of that fi rst method may have a greater chance of losing more

unique alleles (but also of retaining more alleles). Decisions on choice of

introduction plan based on all of the factors surrounding the introduction

of a particular species will have to be made in such situations.

Founding Population

Each individual founder requires a separate statement of the form

Note that setting the age to 0 means that the founder is in its fi rst year of the

population. If a founder is given age = “4”, this indicates that that founder

is in its fi fth generation when this trial begins with the given founders. This

convention allows the user to specify that different founders have different

ages and become reproductive in different generations of the developing

population. When different ages are assigned to different founders, the

generation of the trial at which different founders become involved in

reproduction can be determined by the reproduction rate statements as

described above. For example, if the reproduction rate statements are

then, for the following two founders

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