Biology Reference
In-Depth Information
<functionpoint x=“1” y=“0”/>
<functionpoint x=“2” y=“0”/>
<functionpoint x=“7” y=“0”/>
<functionpoint x=“8” y=“0.15”/>
<functionpoint x=“10” y=“0.5”/>
<functionpoint x=“12” y=“0.8”/>
<functionpoint x=“13” y=“1.3”/>
<functionpoint x=“45” y=“1.3”/>
<functionpoint x=“55” y=“0.01”/>
</Reproduction_Rate>
Pollen production does not begin until age 6, when 25% of the individuals
of that age are randomly chosen to be included in the pool of potential
pollen donors (a pollen donor is selected at random from that pool). At
ages 10 through 45, 100% of the members of each cohort are included in the
pool of potential pollen donors. After age 45, the percentage of members of
each successive age included in the pollen donor pool for a mating steadily
declines to become 0% at age 55.
<Pollen_Rate>
<functionpoint x=“0” y=“0”/>
<functionpoint x=“1” y=“0”/>
<functionpoint x=“5” y=“0”/>
<functionpoint x=“6” y=“0.25”/>
<functionpoint x=“8” y=“0.75”/>
<functionpoint x=“10” y=“1”/>
<functionpoint x=“45” y=“1”/>
<functionpoint x=“55” y=“0.0”/>
</Pollen_Rate>
Age-specifi c mortality is specifi ed as follows. 20% of age 0 individuals
and 10% of each age 1 through 4 are randomly culled from the population
before each bout of mating. Mortality declines through successive ages to
5% at age 7 and then to 2% at ages 10 through 45. Mortality then steadily
increases with each successive age until there is 100% mortality at age 60.
Note that production of offspring and pollen ceases at age 55, so some older
non-reproductive individuals will be taking up grid points (new offspring
cannot establish there) until age 60, when they all have been removed from
the population.
<Mortality_Rate>
<functionpoint x=“0” y=“0.2”/>
<functionpoint x=“1” y=“0.1”/>
<functionpoint x=“4” y=“0.1”/>
<functionpoint x=“7” y=“0.05”/>
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