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not change dramatically in terms of loss of unique alleles when acted on by
chance or selection pressures that might affect loci with greater diversity.
However, are the population phenomena we have demonstrated
regarding spationumeric effects of founding when loci have high diversity
valid for loci with more “intermediate” diversities? To examine this issue, we
have run comparative trials with essentially identical conditions except that
one trial has individuals each with 30 replicates of the usual “high-diversity”
locus we have employed throughout most of this topic (100 different alleles
all at frequency = 0.01), while in the counterpart trial each individual has 30
replicate loci, each with 21 different alleles with the following frequencies:
3 different alleles with frequencies 0.22, 0.14, 0.08, plus the following
alleles:
<functionpoint x=“0.05” y=“3”/>
<functionpoint x=“0.05” y=“4”/>
<functionpoint x=“0.05” y=“5”/>
<functionpoint x=“0.05” y=“6”/>
<functionpoint x=“0.04” y=“7”/>
<functionpoint x=“0.04” y=“8”/>
<functionpoint x=“0.04” y=“9”/>
<functionpoint x=“0.04” y=“10”/>
<functionpoint x=“0.03” y=“11”/>
<functionpoint x=“0.03” y=“12”/>
<functionpoint x=“0.03” y=“13”/>
<functionpoint x=“0.03” y=“14”/>
<functionpoint x=“0.03” y=“15”/>
<functionpoint x=“0.01” y=“16”/>
<functionpoint x=“0.01” y=“17”/>
<functionpoint x=“0.01” y=“18”/>
<functionpoint x=“0.01” y=“19”/>
<functionpoint x=“0.01” y=“20”/>
Using the conditions as outlined above, there are four comparative
trials that differ as follows:
Trials V and v had all 172 founders placed in a square in the left preserve.
Trials W and w had founders divided into two squares, one placed in each
preserve.
Each locus for individuals in trials v and w had 100 different alleles, each
with source population frequencies = 0.01 (high-diversity trials).
Each locus for individuals in trials V and W had 21 different alleles with source
population frequencies as designated above (lower-diversity trials).
In Fig. 18.1A, population growth for trials V and v (founders all in one
preserve) does not differ signifi cantly (p > 0.05) and shows similar rates
of expansion. Trials in which the founders are split (W and w) are also not
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