Biology Reference
In-Depth Information
0.70
A
q
q
q
0.55
q
q
q
q
0.40
q
q
q
q
q
q
q
0.25
s
0.10
s
s
s
s
s
s
s
s
r
r
c
s
r
c
c
r
r
c
s
r
c
r
r
c
c
c
c
s
c
c
r
c
r
c
r
s
r
s
c
r
c
r
q
c
s
r
-0.05
0
5
10
15
1200
q
B
1100
1000
r
c
s
q
900
q
q
q
q
q
q
q
q
q
q
q
q
q
s
c
r
800
s
c
r
s
c
r
s
c
r
s
700
s
r
c
s
r
c
s
s
c
r
s
s
c
r
c
r
s
s
s
r
c
r
c
c
r
c
r
c
r
c
600
0
5
10
15
GENERATION
Fig. 11.4
F values (A) and unique alleles retained (B) for populations initiated with 20 founders
in two horizontal lines in the center of the preserve, 10 founders per line. Initial input conditions
were identical except as follows. Populations c, r, and s had founders positioned with closest
spacing, while q had 13 grid points between adjacent founders. Populations c and q had selfi ng
rate = 0 and random mating set to true (selfi ng randomly occurs in proportion to the number of
eligible mates), while selfi ng rate for population r = 0.05, and for population s = 0.1. Populations
c and r overlap in the lowest curve of A; c, r, and s overlap in the lowest curve of B.
As outlined above, since founders of population q have 13 grid points
between them, but offspring and pollen dispersal distances are limited to
5 or fewer grid points, initial matings will be selfs and little competition
will exist for establishing at a grid point because of the wider spacing. In
earlier chapters it was shown that population growth rate increases when
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