Biology Reference
In-Depth Information
descendant trees would all die by the time they reach age 600 if a trial were
to run that long. The nine founders are placed near the lower longer margin
but along a central line inward that bends to the right at the end. This spacing
and pattern were chosen in an attempt to duplicate the introduction of the
founders at West Salem.
<Initial_Population>
<Plant age=“1000” femaleP=“false” X=“120” Y=“0”/>
<Plant age=“1000” femaleP=“true” X=“120” Y=“2”/>
<Plant age=“1000” femaleP=“false” X=“120” Y=“4”/>
<Plant age=“1000” femaleP=“true” X=“120” Y=“6”/>
<Plant age=“1000” femaleP=“false” X=“120” Y=“8”/>
<Plant age=“1000” femaleP=“true” X=“122” Y=“10”/>
<Plant age=“1000” femaleP=“false” X=“124” Y=“12”/>
<Plant age=“1000” femaleP=“true” X=“126” Y=“14”/>
<Plant age=“1000” femaleP=“false” X=“128” Y=“16”/>
</Initial_Population>
The source population had an F value of 0:
<FoundersF value=“0.0”/>
West Salem Simulation Results
Results from the above described basic trial a were compared with three
other trials, all of which were identical to trial a except as follows:
In trial b, on average, offspring were distributed much closer to the maternal
plant but there was a longer tail of distribution. Offspring dispersal distances
for the two trials were:
trial a:
trial b:
<functionpoint x=“0” y=“0”/>
<functionpoint x=“0” y=“0”/>
<functionpoint x=“6” y=“0.25”/>
<functionpoint x=“6” y=“0.45”/>
<functionpoint x=“13” y=“0.5”/>
<functionpoint x=“15” y=“0.8”/>
<functionpoint x=“22” y=“0.75”/>
<functionpoint x=“38” y=“0.96”/>
<functionpoint x=“301” y=“1”/>
<functionpoint x=“701” y=“1”/>
In trial e, each age-specifi c designation for offspring production in trial a
is reduced by 70%.
In trial f, each age-specifi c designation for offspring production in trial a
is increased by 25%.
Total population growth across generations for these comparative trials
is shown in
Fig. 16.1A.
The basic trial a described in detail above has grown
to slightly less than 6,000 individuals, and given that the last few trial a
cohorts are composed of younger and not yet reproductive individuals,
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