Biology Reference
In-Depth Information
Table 15.3 Relative age-specifi c offspring and pollen contribution rates for comparative trials
modeling Lindera benzoin population growth.
Offspring Production Rates
Trials: M,A,B
C
D
<Reproduction_Rate>
x y
x y
<functionpoint
x=“0” y=“0”/>
0 0
0 0
<functionpoint
x=“1” y=“0”/>
1 0
1 0
<functionpoint
x=“2” y=“0”/>
4 0
2 0
<functionpoint
x=“7” y=“0”/>
5 0.2
7 0
<functionpoint
x=“8” y=“0.15”/>
7 0.6
8 0
<functionpoint
x=“10” y=“0.5”/>
10 1.3
10 0.1
<functionpoint
x=“12” y=“0.8”/>
42 0.8
12 0.4
<functionpoint
x=“13” y=“1.3”/>
47 0.1
14 0.7
<functionpoint
x=“45” y=“1.3”/>
50 0.01
18 1.4
<functionpoint
x=“55” y=“0.01”/>
55 0
50 1.4
55 0.02
</Reproduction_Rate>
Pollen Production Rates
Trials M,C,D
A
B
<Pollen_Rate>
x y
x y
<functionpoint
x=“0” y=“0”/>
0 0
0 0
<functionpoint
x=“1” y=“0”/>
1 0
1 0
<functionpoint
x=“5” y=“0”/>
4 0
5 0
<functionpoint
x=“6” y=“0.25”/>
5 0.5
6 0
<functionpoint
x=“8” y=“0.75”/>
6 0.85
8 0.35
<functionpoint
x=“10” y=“1”/>
7 1
10 0.8
<functionpoint
x=“45” y=“1”/>
30 1
16 1
<functionpoint
x=“55” y=“0”/>
45 0.1
45 1
55 0
55 0.4
</Pollen_Rate>
Conditions for the trials are identical to those outlined for Lindera basic trial M (see text) except
for the differences indicated above. The actual input code for trial M is printed in the table (at
left). x is the age number; y is the rate of production relative to the maximum given for a trial
(e.g., the maximum offspring production rate for trials M, A, and B is y = 1.3).
in the growth rate of populations (graph A, central curves indicated by
M, A, and B) under the given conditions. In contrast, having members of
cohorts producing offspring earlier with an earlier decline in offspring
output increases population growth, while delaying offspring production
and decline suppresses population growth compared to the basic trial M.
Timing of pollen versus offspring provisioning in these trials appears to
make little absolute difference in either observed heterozygosity or F values.
For unique allele retention, varying the timing of pollen availability yields
little difference from trial M. However, the earlier inception and cessation
of offspring production resulting in the more rapid growth of population
C compared to populations M and D is related to greater unique allele
retention, which increases by approximately 14% over the latter trial.
 
 
Search WWH ::




Custom Search